Mountain

The Bobcat Trail family of mountain bike hardtails are designed for the rider looking for a capable singletrack machine, featuring everything you need to have a great ride. The heart and soul of the ride stem from the lightweight, Series 2 aluminum alloy frame, which features long and low trail geometry and room for either 27.5" or 29" wheels. 120mm of rock garden-ready travel adds to the bike's trail capability and fun factor. All Bobcat Trail models feature internal cable routing, hydraulic disc brakes, and wide-range off-road specific drivetrains. - Series 2 6061 Aluminum frame - SR Suntour XCM HLO-DS 120mm travel fork - Shimano Altus 2x9 drivetrain - Marin Aluminum Double Wall rims w/WTB Trail Boss 2.25" tires - Tektro M275 hydraulic disc brakes

The Bolinas Ridge family of mountain bikes are designed for the recreational mountain biker looking to explore their local singletrack or dirt paths. Utilizing our lightweight, Series 1 aluminum alloy frames, 100mm travel suspension forks, and reliable Shimano drivetrains, these bikes are capable of tackling real trails and pushing your own boundaries. Size-specific 27.5" or 29" wheels, disc brakes, and 2.25" MTB tires mean comfort, traction, and control through any rough terrain. Get outside and explore with the Marin Bolinas Ridge. - Series 1 6061 Aluminum frame - SR Suntour XCE Disc, 100mm travel fork - Shimano Tourney 3x7-speed drivetrain - Power CX7 mechanical disc brakes

The Bolinas Ridge is perfectly suited for recreational riders wishing to explore singletrack and dirt trails with a mountain bike built for real trails, with trail capable suspension forks and all-conditions disc brakes. Key upgrades over the Bolinas Ridge 1: - Shimano Altus 3x8 drivetrain - Tektro M275 hydraulic disc brakes - SR Suntour XCM DS fork Wheel size: - Sizes X-Small – Medium: 27.5-inch - Sizes Medium – X-Large: 29-inch

Riding a bike is fun, and having fun on the trail was at the front of our minds when creating the Rift Zone 27.5. Built around our MultiTrac suspension system, the Rift Zone 27.5 is our most playful and fun short travel suspension trail bike to date. Entry level through to high-performance spec, everyone can fall in love with mountain biking over and over again with the Rift Zone 27.5.

Developed in conjunction with freeride legend Matt Jones and taking its name from the most rough and tumble piece of Marin County, the San Quentin collection lives up to the notoriety of the namesake maximum security California State Prison. Blending the strength and style of our Alcatraz dirt jump frame with the natural trail savvy of the best hardtails, the San Quentin family of aggressive trail hardtails is the perfect mash-up for the modern trail rider. Dirt jump DNA with all the speed and roll-over of 29" wheels. The Marin San Quentin 2 29 is our mid-pack model that blends bang-for-your-buck value with kick-ass components. We’ve packed in 29" wheels, a TranzX dropper post, X-Fusion suspension fork, Tektro brakes, Vee Tire rubber and plenty of awesome Marin kit to create a bike you’ll love to rip, but that won’t shred your budget. Dirt jump DNA with all the speed and roll-over of 29" wheels. SERIES 3 AND 2 ALUMINUM FRAMES - The San Quentin 1 features a Series 2 aluminum frame, with tapered head tubes, 3D forged drop outs, IS brake mounts, and semi-internal cable routing. The San Quentin 2 and 3 feature Series 3 aluminum frames, with more advanced tube forming, more complex dropouts, post mount disc tabs, full internal cable routing, and a boost 148mm thru-axle. DIRT JUMP INSPIRED FRAME STYLE - Taking cues from the Alcatraz, the San Quentin line up provides all the benefits of the DJ style with massive stand over, slick frame tubes, and a sexy paint job. MODERN TRAIL GEOMETRY - The slack head tube angle paired with a steep seat tube angle create a ride that will fly uphill with perfect front wheel precision but then descend like it’s on rails. The balanced rider position thanks to the steep seat tube puts your weight between the wheels for impressive climbing and handling on flats, while the slack front end and short rear center help to pull you through the rough descents and corners with an intuitive feel. ISCG TABS - San Quentin 2 and 3 models feature ISCG 05 tabs for easy chain retention device installation for rowdier riders.

The Wildcat Trail family crosses boundaries between Trail and Sport mountain bikes, with the Wildcat Trail 5 and Wildcat Trail 3 designed for the female hardtail enthusiast looking for a full featured trail mountain bike, and the Wildcat 1 positioned for the recreational mountain bikers. Key upgrades over the Wildcat Trail 1: - Series 2 aluminum frame w/double butted tubing & internal cable routing - SR Suntour XCM HLO fork w/120mm travel & hydraulic lockout - Tektro hydraulic disc brakes

Equipped to handle anything — embrace paved roads, paths, and dirt trails with confidence and style. Versatility With Liv’s Purpose Driven Design, relaxed style, and lightweight ALUXX-Grade aluminum frame, Bliss is ideal for city roads or around town trails. Perfect Fit The LivRight Sizing Philosophy ensures the best fit for women for a truly comfortable ride. Smooth Handling A front suspension fork provides the perfect balance of capability and ease. Why We Love It Designed to bring the best of both road and mountain worlds together. Bliss delivers front suspension, on a 26-inch or 27.5-inch wheel size for stability with great traction from wider tires, and a relaxed riding position that keeps you more upright and comfortable in the saddle. Pedal efficiency, super lightweight design, and a sleek setup makes commuting and adding miles to your ride a breeze. Liv’s 3F Design Philosophy lets us create bikes that are specifically tuned for female riders, balancing riders properly over the bottom bracket and ensuring they get the most confidence-inspiring position. Integrated dropouts allow you to install a rack or add a kickstand to transform the bike into a capable commuter or weekend adventurer.

FEEL MORE CONNECTED TO THE TRAIL WITH THE ALL-NEW LURRA. BUILT FOR CHARGING UP SINGLETRACK CLIMBS AND DIVING INTO FAST, FLOWY DESCENTS, THIS HARDTAIL TRAIL BIKE IS SIMPLICITY AT ITS BEST. KEY PERFORMANCE FACTORS Optimal Trail Design Lightweight ALUXX SL-Grade Aluminum hardtail frame with a steep seat tube angle optimizes your input when powering up climbs and hammering on the flats, resulting in greater efficiency and speed. And a 66-degree head tube angle offers confidence on steep descents, while the 438mm chainstays keep it feeling stable and playful. Frame sizes are paired up with wheel sizes, providing the ideal fit for you and where you want to ride. Boosted Confidence Take on technical terrain with the 130mm of plush front suspension, high-volume tubeless tires offering extreme traction on roots, rocks and ruts, and a dropper seatpost allowing you to get low and ride with control. Adventure-Ready The Lurra comes equipped with mounts for two water bottle cages and additional mounts on the underside of the top tube allow riders to add a small gear bag for stowing tools. Internal cable routing keeps the important stuff tidy and protected, so you can stay focused on the ride ahead. TECHS & FEATURES: ALUXX ALUMINUM TECHNOLOGY - This Performance level frame material features 6061 alloy with single-butted tubes to produce strong, lightweight framesets for a variety of different bikes and riding styles. FLEXPOINT SUSPENSION TECHNOLOGY - A proven "single-pivot" design that uses the flexing action of the chainstay/seatstay junction to produce a lightweight and durable suspension system with 4.7 inches/120mm of rear travel. OVERDRIVE - Designed to provide precise front-end steering performance, this fork steerer tube technology uses oversized headset bearings (1 1/4" lower and 1 1/8" upper for road, 1 1/2" lower and 1 1/8" upper for mountain) and tapered steerer tube work in conjunction to provide optimal steering stiffness. POWERCORE - A massively oversized bottom-bracket/chainstay area features a fully integrated, 86-millimeter wide bottom-bracket design (92-millimeter wide for off-road bikes). Asymmetric chainstays provide additional stiffness on the driveside and stability on the non-driveside. TUBELESS SYSTEM - Fewer flat tires. Greater traction. Less rolling resistance and a smoother, faster ride. Giant's Tubeless System makes it easier than ever to experience all these benefits. Wheel size: Sizes X-Small – Small: 27.5-inch Sizes Small – Large: 29-inch

Get on the dirt and ride your way to your first singletrack. Tempt is that friend that opens a whole new world to you. Key Performance Factors Confidence Inspiring Perfect as your first mountain bike, the ALUXX-Grade Aluminum frame is lightweight, capable and durable. Versatile Tempt’s performance-minded yet comfortable geometry gives it the versatility for both commutes around campus and off-road rides. XC Control A suspension fork offers control, comfort and stability over bumpy terrain. Depending on frame size, the fork comes with 80mm or 100mm of travel. Wheel Sizing: Sizes X-Small – Small: 27.5-inch Sizes Small – X-Large: 29-inch

From parkways to paths and everything in between, this versatile bike can add some spice to your commute or fitness routine. With its flat handlebar, upright positioning, and suspension fork, you’re free to ride different types of terrain with confidence and control. With a rugged personality and a smooth riding style, ATX features the familiar flat handlebar look of a traditional mountain bike. It has a lightweight yet durable ALUXX aluminum frame and a suspension fork with 100mm of smooth travel to soak up bumps. The wheel diameter varies based on bike size, with 26-inch wheels on smaller frames and 27.5 on larger ones. This tailors the bike’s handling to a rider’s height. Powerful brakes deliver confident handling in all types of weather, and integrated mounts make it easy to add racks or fenders to suit your riding adventures. All-terrain versatility With a mountain bike-style flat handlebar and suspension fork, you can ride road or dirt with confidence. Lightweight and durable Frameset constructed with high-quality ALUXX aluminum. Comfort and stability Frame geometry puts the rider in a position that balances efficiency with stability on rough roads, paths, or trails.

CRANK UP STEEP CLIMBS WITH SMOOTH EFFICIENCY. SWOOP DOWN SINGLETRACK DESCENTS WITH SPEED AND CONFIDENCE. THIS HARDTAIL 29ER DELIVERS A BALANCED RIDE ON XC TERRAIN. KEY PERFORMANCE FACTORS Trail tuned design Balanced geometry with a 75-degree seattube angle puts the rider in a powerful pedaling position on climbs, while a slacker 66-degree head angle boosts confidence and control on technical descents. Responsive handling Lightweight ALUXX SL aluminum hardtail frame offers agile acceleration and maneuverability to help riders climb, corner and hammer the flats with efficiency and speed. Smooth control Giant Crest 34 suspension fork with 130mm of travel absorbs roots, rocks and ruts. Grippy, high-volume tires boost traction on rugged terrain. And a dropper seatpost with handlebar remote lets you adjust saddle height on the fly for confident positioning on changing terrain.

MODERN MOUNTAIN BIKE TRAILS ARE FUN, FLOWY AND CHALLENGING. THIS FULL-SUSPENSION 29ER GETS YOU IN SYNC WITH THE TERRAIN, SO YOU CAN RIDE WITH MORE CONFIDENCE AND HAVE MORE FUN. KEY PERFORMANCE FACTORS Attainable trail performance Handcrafted with lightweight, stiff and durable ALUXX aluminum, it's the perfect entry to full-suspension performance. Smooth suspension FlexPoint Suspension technology helps you tackle challenging terrain and improve your trail riding capabilities. 29er confidence and control Larger diameter wheels roll over rugged terrain with balance and stability, giving you the momentum to tackle technical climbs and the confidence to fly on singletrack descents.

Push the pace on climbs, let loose on descents. This aluminum hardtail with a plush suspension fork delivers balanced, confident handling on the trail. Key Performance Factors: Proven alloy performance ALUXX aluminum frameset is hand-built in-house by the world leader in aluminum engineering. Balance and stability Frame geometry is designed to optimize the balance and roll-over capabilities of 29-inch wheels or the liveliness of 27.5-inch wheels (depending on frame size). XC control Suspension fork offers either 80mm or 100mm of smooth travel for added XC control. Highlights: Built on a lightweight ALUXX aluminum frame that features classic hardtail design and the balanced riding characteristics of either larger diameter 29-inch or 27.5-inch wheels, Talon is a great choice for XC and trail riding. The frame geometry is specifically designed to adapt to its respective wheel size and either an 80mm or 100mm suspension fork (depending on frame size). It’s a confident ride that’s perfect for ambitious riders who want to take their off-road skills to the next level. Wheel Sizing: Sizes X-Small – Small: 27.5-inch Sizes Small – X-Large: 29-inch

Push the pace on climbs, let loose on the descents. This aluminum hardtail gives you a feel for the trail with balanced, confident handling and a plush suspension fork. Key Performance Factors: Proven alloy performance - ALUXX aluminum frameset is hand-built in-house by the world leader in aluminum engineering. Balance and stability - Frame geometry is designed to optimize the balance and roll-over capabilities of 29-inch wheels or the liveliness of 27.5-inch wheels (depending on frame size). XC control - Suspension fork offers either 80mm or 100mm of smooth travel for added XC control. Highlights Built on a lightweight ALUXX aluminum frame that features classic hardtail design and the balanced riding characteristics of either larger diameter 29-inch or 27.5-inch wheels, Talon is a great choice for XC and trail riding. The frame geometry is specifically designed to adapt to its respective wheel size and either an 80mm or 100mm suspension fork (depending on frame size). It’s a confident ride that’s perfect for ambitious riders who want to take their off-road skills to the next level. Techs & Features ALUXX Aluminum Technology This Performance level frame material features 6061 alloy with single-butted tubes to produce strong, lightweight framesets for a variety of different bikes and riding styles.

Push the pace on climbs, let loose on descents. This aluminum hardtail with a plush suspension fork delivers balanced, confident handling on the trail. Key Performance Factors: Proven alloy performance ALUXX aluminum frameset is hand-built in-house by the world leader in aluminum engineering. Balance and stability Frame geometry is designed to optimize the balance and roll-over capabilities of 29-inch wheels or the liveliness of 27.5-inch wheels (depending on frame size). XC control Suspension fork offers either 80mm or 100mm of smooth travel for added XC control. Highlights: Built on a lightweight ALUXX aluminum frame that features classic hardtail design and the balanced riding characteristics of either larger diameter 29-inch or 27.5-inch wheels, Talon is a great choice for XC and trail riding. The frame geometry is specifically designed to adapt to its respective wheel size and either an 80mm or 100mm suspension fork (depending on frame size). It’s a confident ride that’s perfect for ambitious riders who want to take their off-road skills to the next level. Wheel Sizing: Sizes X-Small – Small: 27.5-inch Sizes Small – X-Large: 29-inch

Push the pace on climbs, let loose on descents. This aluminum hardtail with a plush suspension fork delivers balanced, confident handling on the trail. Key Performance Factors: Proven alloy performance ALUXX aluminum frameset is hand-built in-house by the world leader in aluminum engineering. Balance and stability Frame geometry is designed to optimize the balance and roll-over capabilities of 29-inch wheels or the liveliness of 27.5-inch wheels (depending on frame size). XC control Suspension fork offers either 80mm or 100mm of smooth travel for added XC control. Highlights: Built on a lightweight ALUXX aluminum frame that features classic hardtail design and the balanced riding characteristics of either larger diameter 29-inch or 27.5-inch wheels, Talon is a great choice for XC and trail riding. The frame geometry is specifically designed to adapt to its respective wheel size and either an 80mm or 100mm suspension fork (depending on frame size). It’s a confident ride that’s perfect for ambitious riders who want to take their off-road skills to the next level. Wheel Sizing: Sizes X-Small – Small: 27.5-inch Sizes Small – X-Large: 29-inch

PUSH THE PACE ON CLIMBS, LET LOOSE ON THE DESCENTS. THIS ALUMINUM HARDTAIL GIVES YOU A FEEL FOR THE TRAIL WITH BALANCED, CONFIDENT HANDLING AND A PLUSH SUSPENSION FORK. KEY PERFORMANCE FACTORS Proven alloy performance ALUXX aluminum frameset is hand-built in-house by the world leader in aluminum engineering. Balance and stability Frame geometry is designed to optimize the balance and roll-over capabilities of 29-inch wheels or the liveliness of 27.5-inch wheels (depending on frame size). XC control Suspension fork offers either 80mm or 100mm of smooth travel for added XC control. Wheel size: Sizes X-Small – Medium: 27.5-inch Sizes Small – X-Large: 29-inch

As a highly versatile touring bike, the Bridge Club hits the sweet spot that separates on- and off-road excursions. The simplistic design makes it fully adept to handle a full rack and pannier setup, frame bags, or any combination of the two. It doesn’t feel sluggish on paved shortcuts, but can also hold its own on dirt detours. If you’re feeling a little zesty on your next road tour, you won’t be ill-prepared for reroutes through the woods. The Bridge Club is designed to handle it all. - 100% Surly Chromoly frame, main triangle is double-butted; 1-1/8" threadless Chromoly fork - Rack, fender, and four sets of three-pack mounts - Disc brake-specific, single-position vertical rear dropout makes it less intimidating than other bikes in the category - Clearance for 700 x 47mm (with or without fenders) or 27.5 x 2.8" tires (27.5 x 2.6" with fenders)

As a highly versatile touring bike, the Bridge Club hits the sweet spot that separates on- and off-road excursions. The simplistic design makes it fully adept to handle a full rack and pannier setup, frame bags, or any combination of the two. It doesn’t feel sluggish on paved shortcuts, but can also hold its own on dirt detours. If you’re feeling a little zesty on your next road tour, you won’t be ill-prepared for reroutes through the woods. The Bridge Club is designed to handle it all. - 100% Surly Chromoly frame, main triangle is double-butted; 1-1/8" threadless Chromoly fork - Rack, fender, and four sets of three-pack mounts - Disc brake-specific, single-position vertical rear dropout makes it less intimidating than other bikes in the category - Clearance for 700 x 47mm (with or without fenders) or 27.5 x 2.8" tires (27.5 x 2.6" with fenders)

The Grappler is Surly's dedicated drop-bar trail bike. With mountain geo designed around a comfortable, confident drop-bar hand position, it's lively and responsive on single-track, double-track, and other degraded surfaces. Ready to haul essential gear for all-day dirt rides and quick bikepacking excursions, captured thru-axles front and rear provide ideal stiffness and handling. Built around 27.5" wheels and compatible with internally geared hubs and single-speed setups, Surly's tried-and-true Gnot-Boost spacing allows riders to run 142mm or 148mm rear hubs. - 100% Surly Chromoly steel frame and fork, featuring Surly's proprietary 'Natch tubing, double-butted main triangle, 1-1/8" headtube, non-suspension corrected. - Horizontal-slotted dropout, Surly Gnot-Boost spacing. - Seat stay-mounted bottle bosses on all sizes except XS, plus three-pack mounts at the top and bottom of the down tube and stealth dropper post routing. - E.D. coated frame for increased life expectancy. - 27.5 x 2.8" tire clearance (with or without fenders).

Ice Cream Truck solves the problem of having to choose between a fat bike and a trail bike. It boasts a symmetric 190mm-spaced Chromoly frame, suspension-corrected 150mm-spaced fork, and sporty trail-oriented geometry. Supported by massive 4.8"" tires, it’s ready to deftly tackle nearly any terrain. - 100% Surly Chromoly steel with 44mm headtube and internal dropper post cable routing - Frame is E.D. Coated for increased life expectancy - 1-1/8" straight steerer fork, Chromoly steel - 100mm threaded bottom bracket shell - Front and rear thru-axles, non-off-set - Universal cast dropouts accommodate thru-axle or quick-release standards

The Largest Tire Clearance on a Fat Bike Frame From log and root covered ribbons of twisty singletrack to miles of powdery snow or sandy beaches, Ice Cream Truck can handle it all. 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 bull, 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 give two shits about what’s in front of it. Ice Cream Truck solves the problem of having to choose between a fat bike and a trail bike. It boasts a symmetric 190mm-spaced Chromoly frame, suspension-corrected 150mm-spaced fork, and sporty trail-oriented geometry. Supported by massive 4.8" tires, itis ready to deftly tackle nearly any terrain. - 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 - 100% Surly Chromoly steel with 44mm headtube and internal dropper post cable routing - Frame is E.D. Coated for increased life expectancy - 1-1/8" straight steerer fork, Chromoly steel - 100mm threaded bottom bracket shell - Front and rear thru-axles, non-off-set - Universal cast dropouts accommodate thru-axle or quick-release standards

Ice Cream Truck solves the problem of having to choose between a fat bike and a trail bike. It boasts a symmetric 190mm-spaced Chromoly frame, suspension-corrected 150mm-spaced fork, and sporty trail-oriented geometry. Supported by massive 4.8" tires, itis ready to deftly tackle nearly any terrain. - 100% Surly Chromoly steel with 44mm headtube and internal dropper post cable routing - Frame is E.D. Coated for increased life expectancy - 1-1/8" straight steerer fork, Chromoly steel - 100mm threaded bottom bracket shell - Front and rear thru-axles, non-off-set - Universal cast dropouts accommodate thru-axle or quick-release standards

The Karate Monkey features updated, progressive trail geometry, our custom trumpet tubeset, and Surly's Gnot-Boost rear dropout system. Available in a variety of colors, with multiple drivetrain and wheel size configurations. - 100% Surly Chromoly steel frame and fork; double-butted main triangle and 44mm headtube - The tubeset uses the same trumpet tubes found on Instigator 2.0 frame - 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

The Karate Monkey features updated, progressive trail geometry, our custom trumpet tubeset, and Surly's Gnot-Boost rear dropout system. Available in a variety of colors, with multiple drivetrain and wheel size configurations. - 100% Surly Chromoly steel frame and fork; double-butted main triangle and 44mm headtube - The tubeset uses the same trumpet tubes found on Instigator 2.0 frame - 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

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. 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 huge 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 Karate Monkey features updated, progressive trail geometry, our custom trumpet tubeset and Surly’s Gnot-Boost rear dropout system. Available in a variety of colors, with multiple drivetrain and wheel size configurations. - 100% Surly Chromoly steel frame and fork; double-butted main triangle and 44mm headtube - The tubeset uses the same trumpet tubes found on Instigator 2.0 frame - 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

The Karate Monkey features updated, progressive trail geometry, our custom trumpet tubeset, and Surly's Gnot-Boost rear dropout system. Available in a variety of colors, with multiple drivetrain and wheel size configurations.

The Karate Monkey Front Suspension bike features a Rock Shox 35 Gold RL A2 suspension fork with 140mm travel, and it’s paired with a dropper post out the box. Progressive trail geometry and 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 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 35 Gold RL A2 suspension fork with 140mm travel - TranzX YSP15 dropper post with stealth routing; 100mm travel on XS, 120mm travel on SM–XL