Mountain

If having fun for the sake of having fun sounds appealing to you, "going fat" will change the way you ride forever. The security and control that the wheel system, found here on our Fatboy SE, provides is unparalleled. You get dramatically more traction, grip, and floatation than with traditional mountain tires, all without sacrificing much to climbing efficiency. The end result is easy to explain—you have way more fun. And to make sure of it, we built the Fatboy with a durable, no-nonsense list of components that are low-maintenance and eager to perform season after season. - The frame features an M4 alloy construction that provides the ideal blend of efficiency and durability, while the geometry creates a roomy top tube and short chainstays for easy climbing and confident descending. - Our alloy fork with air-formed legs is lightweight and pairs up perfectly with the fat wheel system to soak up trail chatter and bumps. - The SRAM 11-speed groupset features a wide gear range that delivers climbing and descending efficiency in spades. On top of this, the one-by setup is notorious for being next to impossible to drop a chain with, plus it provides a significant weight savings in comparison to a standard two-by setup.

Here’s proof you don’t need tons of suspension travel to tackle challenging trails. Equipped with an all-new, longer, lower, and rowdier chassis, we’ve added 27.5 x 2.8 wheels and tires to the Fuse 27.5 to create a bike that lets you hit rocks and roots at speed with absolute control. - 130-millimeters of suspension, courtesy of a RockShox Judy Silver TK fork. - Highlights include hydraulic disc brakes, a dropper post, and single-ring drivetrain. - Shimano single-ring drivetrain brings simple and reliable shifting to an affordable price point. - Plus-size tires provide insane traction and stability on the choppiest trails. - New Butcher GRID TRAIL offers improved cornering grip. - TranzX dropper post increases the Fuse's maneuverability on steep descents.

A mountain bike is freedom: the ability to pick a spot on the map and say, "Let's go there," or maybe go off the map altogether. With a lightweight frame, responsive front suspension, and powerful hydraulic disc brakes, the Pitch 27.5 is your perfect adventure partner. Best of both worlds Riders have long debated whether fast-rolling 29er wheels were better than nimble 26ers. Turns out, the sweet spot for many is right in between, so the Pitch rolls on 27.5-inch wheels that keep much of a 29er's confident handling in a tighter, lighter package. Strong yet smooth The A1 Premium Aluminum is burlier than a brontosaurus's backbone. But strong doesn't have to mean harsh or heavy. Our engineers went over every tube, tweaking, pinching, nipping and tucking to make sure it offers a smooth ride no matter what the trail conditions are. Top to bottom quality The Pitch's sure-handling Sport Trail 27.5 Geometry provides unrivaled stability. SR SunTour XCE suspension fork keeps you grounded on the most technical trails. Shimano hydraulic disc brakes offer best-in-class power and reliability. - Braking isn't just about power; it's about how that power is used. The Shimano hydraulic disc brakes on the Pitch feature best-in-class modulation, so you can apply exactly the right amount of stopping power, without a death grip on the lever. - Control means keeping those tires firmly planted. That's where great suspension comes in, like the SR SunTour XCE 28 suspension fork on the Pitch, which features a coil spring for unparalleled small-bump responsiveness. Size-specific travel (80mm or 100mm) keeps geometry and handling consistent for riders of all sizes. - The best mountain bikes are the ones that let you tackle any terrain with confidence. The Pitch's sure-handling Sport Trail 27.5 Geometry is designed for ultimate stability, whether you're railing down a flowy singletrack or picking your way through a technical section.

The rugged Pitch Comp 1X is built to get you way out there and back on every adventure. We relentlessly refined the Pitch's handling for an exquisite balance of an agile, playful feel, with stability at speed, all in a proven frame design with durable performance parts. THE SWEET SPOT What to pick, the nimble 26-inch wheel size or the fast-rolling 29er? Neither, we said. The sweet spot for many riders and trails is right in between, so the Pitch rolls on 27.5-inch wheels that offer a 29er's confident handling in a tighter, lighter package. STRENGTH AND GRACE The A1 Premium Aluminum frame is pretty much the definition of strong. But that doesn't mean it rides like a brute. Our engineers carefully optimized the shape of every tube to ensure it offers a smooth, comfortable, confident ride even on the bumpiest trails. TOP-CLASS PARTS SR Suntour XCM suspension fork with custom Multi-Circuit damping. Wide-range MicroSHIFT drivetrain handles even the steepest climbs. Meaty Ground Control Sport tires offer grip and control in any trail condition.

You started planning weekends around rides, rearranged the garage to fit more gear, and have singletrack dreams. It's official: you're a mountain biker, and you need a bike that's as ready to rip as you. That's the Rockhopper Expert 1X, our most capable Rockhopper yet. STATE OF ALUMINUM ART We gave the A1 SL Aluminum frame on the Rockhopper Expert 1X a lighter, tighter look with tube shapes that are optimized for the lowest weight while preserving its legendary comfort. With clean lines and internal cable routing, turns out it looks as sweet as it rides. READY TO GET ROWDY Stable and agile might seem contradictory, but the Sport XC 29 Geometry on the Rockhopper Comp 1X accomplishes both goals, with nimble, responsive handling for tight trails and superior stability when going fast, plus a rider position that's comfortable for long rides. - Shimano's reliable MT200 hydraulic disc brakes keep you under control with less effort at the lever. - 10-speed Shimano Deore drivetrain offers precise shifts and long-lasting quality. - Wide 2.3-inch Ground Control Sport front and Fast Trak rear tires provide optimal traction and efficiency.

We've all felt the compulsion to break free from our day-to-day routine, especially when it comes to riding. Sure, laps around town are fun, but compared to the freedom of getting out in the woods or on country roads, life on the pavement starts to look pretty mundane. Lucky for you, our Women's Pitch 27.5 unlocks the potential of your ride. With a light aluminum frame and our Women's Sport Trail 27.5 Geometry, you'll be feeling comfortable and confident regardless of the terrain. And with corrosion-resistant hardware and kickstand compatibility, this Pitch provides the long-term durability and ease-of-use that every bike should strive for. Question is—where will you take it? - The frame is constructed from lightweight A1 Premium Aluminum in order to provide a compliant, durable platform to support our acclaimed Women's Sport Trail 27.5 Geometry. Combined, you get a bike that's extremely versatile, making it equally capable on the climbs and descents. - Custom SR Suntour XCT fork features 80/100mm (size-specific) of coil-sprung suspension travel that swings well above its weight class. - A Shimano TX800 rear derailleur is built to with durability in mind, so you can rest assured that you'll have a reliable shifting partner for the long trails ahead.

We've all felt the compulsion to break free from our day-to-day routine, especially when it comes to riding. Sure, laps around town are fun, but compared to the freedom of getting out in the woods or on country roads, life on the pavement starts to look pretty mundane. Lucky for you, our Women's Pitch 27.5 unlocks the potential of your ride. With a light aluminum frame and our Women's Sport Trail 27.5 Geometry, you'll be feeling comfortable and confident regardless of the terrain. And with corrosion-resistant hardware and kickstand compatibility, this Pitch provides the long-term durability and ease-of-use that every bike should strive for. Question is—where will you take it? - The frame is constructed from lightweight A1 Premium Aluminum in order to provide a compliant, durable platform to support our acclaimed Women's Sport Trail 27.5 Geometry. Combined, you get a bike that's extremely versatile, making it equally capable on the climbs and descents. - Custom SR Suntour XCT fork features 80/100mm (size-specific) of coil-sprung suspension travel that swings well above its weight class. - A Shimano TX800 rear derailleur is built to with durability in mind, so you can rest assured that you'll have a reliable shifting partner for the long trails ahead.

The Salsa Timberjack is a hardtail mountain bike that’s equally at home pushing the limits on singletrack or bikepacking to places you’ve yet to discover. Timberjack features modern trail bike geometry, short chainstays for nimble scrambling, and clearance for either 29-inch or plus-size 27.5-inch tires. Timberjack NX Eagle 27.5+ is compact and responsive for great maneuverability. The RockShox Sektor RL fork eliminates chop, so you can confidently explore tough trails, while the SRAM NX Eagle 1x12 drivetrain offers massive gear range and precise shifts. Timberjack’s powerful SRAM Level brakes easily tame that speed when necessary, with precise modulation that sharpens up the control.

Full suspension opens up a whole new world of speed and control off-road. Modernized with 27.5” hoops, this is the frame platform that’s won us numerous industry accolades and Bike of the Year awards. Perfect rigs for the experienced rider who is looking to upgrade to their first dual suspension or for new riders looking for a head start in performance.

This is where the 27.5” wheel size really shines: on a 160mm travel all-mountain enduro machine that utilizes Jamis' proven mp4 suspension for pedaling efficiency, with modern geometry and top-level suspension to tackle bigger hits and aggressive descents at higher speeds. This progressive suspension design delivers plush rear wheel traction while still resisting bottom out. Rear thru-axles, short chainstays and a roomy front-center provide stiffness, quick cornering and playful handling. If you want to do it all and fast, this is the bike.

The Big Fat Dummy is a long tail cargo bike that took a few too many doses of growth hormones. At first glance, you might say that Surly just put bigger tires on a Big Dummy. But if you said that, you'd actually be very wrong so just… don't. Think of Big Fat Dummy as more of a second or third cousin to Big Dummy rather than a brother. They share some of the same DNA and look sort of similar, but they're two very different bikes and really only interact when they both reach for the potato salad spoon at that family reunion that no one really wants to be at anyway. Now that that's out of the way, let's get down to the nitty gritty of what makes this hulking beast of a bike tick. Surly's goal with designing a cargo bike around fat tires was to create the most stable, stiff, and traction-laden ride possible while hauling a ton of stuff. Big Fat Dummy has a longer toptube and slacker headtube than its more svelt cousin giving it a nice, predictable, and stable ride. They also used thinner, lighter tubing to construct its cargo area so while it's an overall burlier bike, there's not much difference in weight. Big Fat Dummy accepts either 10mm or 12mm axles in the rear with a spacing of 190/197mm. That big ol' spacing equates to one thing: tire clearance for days. Big Fat Dummy maxes out at a massive 26 x 5.25" tire.* While that large of a tire provides the most traction and stability a bike can possibly offer, it's also a lot of rubber to push and might not be for everybody. Luckily, Big Fat Dummy is also a blast to ride with 3" tires too. It uses the same 100mm suspension-corrected fork as the Wednesday, meaning if you want to add a little squishy squishy to your ride, you can throw a Bluto on and let ‘er rip. If you intend to carry a passenger on your Big Fat Dummy, Surly requires use of their Dummy Rail Collars. These provide a secondary retention system for the rack, as well as stiffen the rack system. In addition, a stoker handlebar set up, found on tandem bicycles, is recommended as well. Make sure to check with seat post manufacturer for stoker handlebar compatibility. All Big Fat Dummy framesets and bikes ship with a Dummy deck, rails, bags, and the aforementioned Dummy Rail Collars so you can immediately start hauling cargo — human or otherwise. Big Fat Dummy is ready and willing to carry all sorts of crap — literally. It's already in use on an organic farm in Ecuador so it's likely that it's hauled some form of manure by now. *Using a 26 x 5.25" tire will cause some drivetrain limitations.

The Big Fat Dummy is a long tail cargo bike that took a few too many doses of growth hormones. At first glance, you might say that Surly just put bigger tires on a Big Dummy. But if you said that, you'd actually be very wrong so just… don't. Think of Big Fat Dummy as more of a second or third cousin to Big Dummy rather than a brother. They share some of the same DNA and look sort of similar, but they're two very different bikes and really only interact when they both reach for the potato salad spoon at that family reunion that no one really wants to be at anyway. Now that that's out of the way, let's get down to the nitty gritty of what makes this hulking beast of a bike tick. Surly's goal with designing a cargo bike around fat tires was to create the most stable, stiff, and traction-laden ride possible while hauling a ton of stuff. Big Fat Dummy has a longer toptube and slacker headtube than its more svelt cousin giving it a nice, predictable, and stable ride. They also used thinner, lighter tubing to construct its cargo area so while it's an overall burlier bike, there's not much difference in weight. Big Fat Dummy accepts either 10mm or 12mm axles in the rear with a spacing of 190/197mm. That big ‘ol spacing equates to one thing: tire clearance for days. Big Fat Dummy maxes out at a massive 26 x 5.25" tire.* While that large of a tire provides the most traction and stability a bike can possibly offer, it's also a lot of rubber to push and might not be for everybody. Luckily, Big Fat Dummy is also a blast to ride with 3" tires too. It uses the same 100mm suspension-corrected fork as the Wednesday, meaning if you want to add a little squishy-squishy to your ride, you can throw a Bluto on and let ‘er rip. If you intend to carry a passenger on your Big Fat Dummy, Surly requires use of their Dummy Rail Collars. These provide a secondary retention system for the rack, as well as stiffen the rack system. In addition, a stoker handlebar set up, found on tandem bicycles, is recommended as well. Make sure to check with seat post manufacturer for stoker handlebar compatibility. All Big Fat Dummy framesets and bikes ship with a Dummy deck, rails, bags, and the aforementioned Dummy Rail Collars so you can immediately start hauling cargo — human or otherwise. Big Fat Dummy is ready and willing to carry all sorts of crap — literally. It's already in use on an organic farm in Ecuador so it's likely that it's hauled some form of manure by now. *Using a 26 x 5.25" tire will cause some drivetrain limitations. For all the nuts and bolts of compatibility read Surly's blog on the subject.

ECR is a plus-tired off-road touring bike designed for routes with way less pavement and a lot more trail. Our Go-To Bikepacking Bike Sometimes the only way to break the humdrum of life is with a bike ride off the beaten path. Sometimes just for a quick overnighter, sometimes a month and half fully-loaded through nine countries. ECR is our answer to those sometimes. As our flagship bikepacking rig, ECR is adaptable to frame bags for the minimalist approach, as well as racks and bags to maximize gear-hauling potential. ECR is most at home when your tour starts on dirt and gets more technical from there. - Two wheel platforms available: 27.5+ for frame sizes XS–M and 29+ for M–XL - All the accessory barnacles you could ever possibly ask for including rack and fender, multiple three-pack mounts and mid-blade. - Gnot-Boost rear spacing with Rohloff torque arm slot and Bill/Ted trailer mount - Clearance for 27.5 x 3 (XS–M) or 29 x 3 (M–XL) tires (with or without fenders)

The ECR is Surly's answer to those times when you just need to escape to the woods for a while to get away from the humdrum of life. Those familiar with this steel mule know it’s designed around plus tires, previously of the 29” variety. A fully loaded 29+ bike is an excellent way to explore and get away for a while… if you’re of a certain stature that is. For smaller riders, it poses several challenges though. And no one wants new problems when they’re in the woods trying to escape old ones. To solve this, Surly redesigned the smaller sizes of the ECR to work with 27.5+ while the larger sizes are still equipped with 29+. All you medium specimens out there get your pick of the litter as Surly's offering that size in both options. Other updates to the ECR include and are limited to: Gnot-Boost rear spacing and a killer new beige paint job. It retains the abundant accessory mounts that we all know and love like Surly Trip Guide for brakes and derailleurs, fender, rack, and Bill/Ted eyelets, and a Rohloff torque arm slot. The 27.5+ sizes also feature two sets of Three-Pack bosses. You’ve got lots of options to bring all your “necessities” with you and still have room for excess baggage if you’ve got it.

The ECR is Surly's answer to those times when you just need to escape to the woods for a while to get away from the humdrum of life. Those familiar with this steel mule know it’s designed around plus tires, previously of the 29” variety. A fully loaded 29+ bike is an excellent way to explore and get away for a while… if you’re of a certain stature that is. For smaller riders, it poses several challenges though. And no one wants new problems when they’re in the woods trying to escape old ones. To solve this, Surly redesigned the smaller sizes of the ECR to work with 27.5+ while the larger sizes are still equipped with 29+. All you medium specimens out there get your pick of the litter as they're offering that size in both options. Other updates to the ECR include and are limited to: Gnot-Boost rear spacing and a killer new beige paint job. It retains the abundant accessory mounts that we all know and love like Surly Trip Guide for brakes and derailleurs, fender, rack, and Bill/Ted eyelets, and a Rohloff torque arm slot. The 27.5+ sizes also feature two sets of Three-Pack bosses. You’ve got lots of options to bring all your “necessities” with you and still have room for excess baggage if you’ve got it.

The ECR is Surly's answer to those times when you just need to escape to the woods for a while to get away from the humdrum of life. Those familiar with this steel mule know it’s designed around plus tires, previously of the 29” variety. A fully loaded 29+ bike is an excellent way to explore and get away for a while… if you’re of a certain stature that is. For smaller riders, it poses several challenges though. And no one wants new problems when they’re in the woods trying to escape old ones. To solve this, Surly redesigned the smaller sizes of the ECR to work with 27.5+ while the larger sizes are still equipped with 29+. All you medium specimens out there get your pick of the litter as Surly is offering that size in both options. Other updates to the ECR include and are limited to: Gnot-Boost rear spacing and a killer new beige paint job. It retains the abundant accessory mounts that we all know and love like Surly Trip Guide for brakes and derailleurs, fender, rack, and Bill/Ted eyelets, and a Rohloff torque arm slot. The 29+ sizes have two water bottle mounts and one set of Three-Pack bosses. You’ve got lots of options to bring all your “necessities” with you and still have room for excess baggage if you’ve got it.

ECR is a plus-tired off-road touring bike designed for routes with way less pavement and a lot more trail. Our Go-To Bikepacking Bike Sometimes the only way to break the humdrum of life is with a bike ride off the beaten path. Sometimes just for a quick overnighter, sometimes a month and half fully-loaded through nine countries. ECR is our answer to those sometimes. As our flagship bikepacking rig, ECR is adaptable to frame bags for the minimalist approach, as well as racks and bags to maximize gear-hauling potential. ECR is most at home when your tour starts on dirt and gets more technical from there. - Two wheel platforms available: 27.5+ for frame sizes XS–M and 29+ for M–XL - All the accessory barnacles you could ever possibly ask for including rack and fender, multiple three-pack mounts and mid-blade. - Gnot-Boost rear spacing with Rohloff torque arm slot and Bill/Ted trailer mount - Clearance for 27.5 x 3 (XS–M) or 29 x 3 (M–XL) tires (with or without fenders)

Ice Cream Truck is the bike we reach for when we don’t really know what the trail has in store. From log and root-covered ribbons of twisty singletrack to miles of powdery snow or sandy beaches, Ice Cream Truck can handle it all. Hell, you could probably even hop over a grizzly if the situation arises. Probably. While we could certainly throw out terms like "confidence-inspiring" and "traction-laden" to describe Ice Cream Truck, those phrases are mostly garbage, so we’re not going to do that. We’re not here to inspire you, and we didn’t laden it with anything. What we did do was design a monolith of a trail bike that doesn’t care what’s in front of it. - Long toptube, short seatstays, and a 68-degree headtube angle makes it tight and maneuverable on fast, technical terrain - Modern trail bike standards like stealth dropper post routing, 44mm headtube, and thru-axles - Clearance for a full 26 x 5 tire on 100mm rims

Years ago the Karate Monkey helped start the 29-inch wheel movement and, as time's gone by, many companies ­– Surly included – have experimented with even more wheel sizes. With so many different types and sizes of tires now on the market, riders have begun to understand the effect that tire width has on overall wheel diameter, and with ample tire clearance, you can see the benefits of multiple wheel sizes all on one bike. 27+ tires have the same rolling diameter as a 29-inch wheel, yet you get all the traction and floatation benefits of extra-wide knobbies. And that's just the tires. The Karate Monkey frame has recently gotten a makeover that includes the addition of features like internal dropper post routing, a new tubeset that uses the same trumpet tubes found on Surly's Instigator 2.0, and a slight tweak in geometry that is more progressive and trail-oriented. The Karate Monkey uses a horizontal dropout with a derailleur hanger that features Gnot-Boost spacing, which gives the rider the ability to run any kind of mountain bike hub they choose. 10 x 135mm QR, 12 x 142, or 12 x 148 Boost will all work in the Karate Monkey frame. The frame uses a 44mm headtube for broad fork compatibility and is ED coated for an added layer of internal protection. If, at any point, you decide you want to throw on some skinny meats, standard 29-inch wheels and tires can be swapped in with no issue. If you want to round-house kick some trail right in the face, the Karate Monkey is your sled. - 100% Surly 4130 chromoly steel frame and fork; double-butted main triangle and 44mm headtube - Adjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142, 148 12mm thru, as well as 135mm w/ 10/12 washer - Internal dropper seatpost routing with 30.9mm seat tube ID - Clearance for 29 x 2.55 or 27.5 x 3 tires

Karate Monkey is a highly-versatile trail bike that plays the part of 29er and 27.5+ equally well. Multipurpose Hardtail Mountain Bike Karate Monkey delivers a resilient, lively ride on all sorts of gnarly terrain. Its frame is a highly-versatile canvas for whatever dirty masterpiece your brain cooks up. According to our computing machine (Thor) it can be set up in approximately 487 different configurations. Originally designed as a 29er (and the frame that helped spark the 29" wheel movement), the latest Karate Monkey is designed to perform just as admirably as a 27.5+ rig as well. This allows you to pick your poison — provided your poison is having a really great time while permanently donning a maniacal grin, of course. - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles, suspension-corrected fork - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed, though) - Clearance for 29 x 2.5 or 27.5 x 3 tires

The venerable Karate Monkey. When it comes to mountain riding, this bike brings everything you need to the experience and more. It's shod with 27.5 x 3.00 terrain-clawing Dirt Wizards for max traction on singletrack thanks to an aggressive tread pattern and cushy, wide footprint. But there's more to this agile trail runner's set of shoes — thanks to generous frame clearance, you can drop a set of 29-inch wheels in with up to a 2.50-inch tire if you desire something with less bite and similar roll-over capabilities. And, with Surly's Gnot Boost rear dropout spacing, you can comfortably run any kind of mountain bike hub: 10 x 135mm QR, 12 x 142mm, or 12 x 148mm Boost will all work in the Karate Monkey frame. Wheel choices aside, Surly built the updated Karate Monkey with a nod toward modern trail-bike geometry and includes internal dropper post routing, two or three bottle mounts (depending on size), threaded fender eyelets, and all the braze-ons you've come to expect from Surly for attaching racks, cages, and bags galore. Running gear consists of SRAMS's rock-solid NX 1x11 drivetrain with full-length external housing and Level hydraulic disc brakes for reliability when you need it most. Throw on a 140mm suspension fork and this all-rounder turns into a serious trail slayer. For what seems like a simple bike at first glance, the Karate Monkey offers much, much more. Listen to the Monkey and lose yourself in its ways.

The Karate Monkey frame features updated, progressive trail geometry, a new tubeset, and Surly’s Gnot-Boost rear dropout system to support multiple drivetrain and wheel size configurations. - 100% Surly 4130 chromoly steel frame and fork; double-butted main triangle and 44mm headtube - Tubeset uses the same trumpet tubes found on Instigator 2.0 frame - Adjustable rear dropouts with 145mm Gnot-Boost spacing works with 142 x 12, 148 x 12mm, and 135mm w/ 10/12 washer - Internal dropper seatpost routing - 30.9mm seat tube ID - Clearance for 29 x 2.55 or 27.5 x 3 tires

Karate Monkey is a highly-versatile trail bike that plays the part of 29er and 27.5+ equally well. Multipurpose Hardtail Mountain Bike Karate Monkey delivers a resilient, lively ride on all sorts of gnarly terrain. Its frame is a highly-versatile canvas for whatever dirty masterpiece your brain cooks up. According to our computing machine (Thor) it can be set up in approximately 487 different configurations. Originally designed as a 29er (and the frame that helped spark the 29" wheel movement), the latest Karate Monkey is designed to perform just as admirably as a 27.5+ rig as well. This allows you to pick your poison — provided your poison is having a really great time while permanently donning a maniacal grin, of course. - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles, suspension-corrected fork - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed, though) - Clearance for 29 x 2.5 or 27.5 x 3 tires

The Surly Karate Monkey Front Suspension bike features a RockShox Sektor RL suspension fork with 140mm travel, and paired with a dropper post out the box. Progressive trail geometry combined with Surly’s Gnot-Boost rear dropout system, deliver a versatile bike with the ability to swap hubs and wheel sizes. If you want to round-house kick some trail right in the face, the Karate Monkey is your sled. - 100% Surly 4130 chromoly steel frame, double-butted main triangle and 44mm headtube - The tubeset uses Surly custom trumpet tubes for greater stiffness and durability - Adjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142 and 148 x 12mm thru, as well as 135mm w/ 10/12 washer - RockShox Sektor RL suspension fork with 140mm travel - TranzX SP15 dropper post with stealth routing; 80mm travel on XS/SM 120mm travel on MD/LG/XL - Clearance for 27.5 x 3.0 or 29 x 2.55" tires

Karate Monkey is a highly-versatile trail bike that plays the part of 29er and 27.5+ equally well. Multipurpose Hardtail Mountain Bike Karate Monkey delivers a resilient, lively ride on all sorts of gnarly terrain. Its frame is a highly-versatile canvas for whatever dirty masterpiece your brain cooks up. According to our computing machine (Thor) it can be set up in approximately 487 different configurations. Originally designed as a 29er (and the frame that helped spark the 29" wheel movement), the latest Karate Monkey is designed to perform just as admirably as a 27.5+ rig as well. This allows you to pick your poison — provided your poison is having a really great time while permanently donning a maniacal grin, of course. - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles, suspension-corrected fork - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed, though) - Clearance for 29 x 2.5 or 27.5 x 3 tires

Krampus is a dedicated 29+ trail bike that can go over, off of, or through just about anything in its path. Breaking the Mold with a 29er Bike As the first "plus" bike to hit the market, Krampus changed the way many people approach trail riding. It’s shown people the light of how high-volume, large-diameter tires can vastly improve the ride experience. It’s also done a bang-up job dispelling the myth that big tires make you slow. Krampus is kind of like the opposite of a mullet: long in the front and short in the rear. With a long toptube and compact chainstays, it takes trail-shredding abilities to the next level. A mullet may be business in the front, party in the back but Krampus makes partying its business. "Lean back, hang on, and ride that wild horse." -Thor - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles, suspension corrected fork - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed, though) - Clearance for 29 x 3" tires

Krampus is a dedicated 29+ trail bike that can go over, off of, or through just about anything in its path. Breaking the Mold with a 29er Bike As the first "plus" bike to hit the market, Krampus changed the way many people approach trail riding. It’s shown people the light of how high-volume, large-diameter tires can vastly improve the ride experience. It’s also done a bang-up job dispelling the myth that big tires make you slow. Krampus is kind of like the opposite of a mullet: long in the front and short in the rear. With a long toptube and compact chainstays, it takes trail-shredding abilities to the next level. A mullet may be business in the front, party in the back but Krampus makes partying its business. "Lean back, hang on, and ride that wild horse." -Thor - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles, suspension corrected fork - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed, though) - Clearance for 29 x 3" tires

Krampus is a dedicated 29+ trail bike that can go over, off of, or through just about anything in its path. Breaking the Mold with a 29er Bike As the first "plus" bike to hit the market, Krampus changed the way many people approach trail riding. It’s shown people the light of how high-volume, large-diameter tires can vastly improve the ride experience. It’s also done a bang-up job dispelling the myth that big tires make you slow. Krampus is kind of like the opposite of a mullet: long in the front and short in the rear. With a long toptube and compact chainstays, it takes trail-shredding abilities to the next level. A mullet may be business in the front, party in the back but Krampus makes partying its business. "Lean back, hang on, and ride that wild horse." -Thor - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles, suspension corrected fork - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed, though) - Clearance for 29 x 3" tires

Lowside is the bike that gets you across town for a quick rip on singletrack, then over to the bar for a night out. It's your BMX bike all grown up. Lowside is like the grownup version of the bike you rode when you were a kid and still had hopes and dreams and some semblance of ambition. It’s just as happy riding singletrack as it is parked outside your favorite drinking establishment. Lowside is a single speed mountain bike. Singlespeeding has been a part of Surly’s DNA since day one when we launched the 1x1 Rat Ride. After a lot of Homie Fall Fests and more feats of strength than we can recall, we decided to discontinue it a couple years back. Lowside picks up right where the 1x1 left off. Some have dubbed the Lowside the ultimate pub cruiser. - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed, though) - Spec'd in alternating years with 26 x 3.0 or 27.5 x 2.8 tires, the Lowside remains capable of running either option

Lowside is the bike that gets you across town for a quick rip on singletrack, then over to the bar for a night out. Lowside is like the grownup version of the bike you rode when you were a kid and still had hopes and dreams and some semblance of ambition. It’s just as happy riding singletrack as it is parked outside your favorite drinking establishment. Lowside is a singlespeed. Singlespeeding has been a part of Surly’s DNA since day one when we launched the 1x1 Rat Ride. After a lot of Homie Fall Fests and more feats of strength than we can recall, we decided to discontinue it a couple years back. Lowside picks up right where the 1x1 left off. Some have dubbed the Lowside the ultimate pub cruiser. - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed though) - Clearance for 26 x 3 or 27.5 x 2.8 tires