Surly Bikes

This fine pair of Surly 10/12 Adapter Washers is designed to adapt any 135, 170, or 190mm O.L.D. QR axle hub with a 142, 177 or 197mm spaced thru-axle frame. Make sure the QR axle on your wheel is the right length for the frame spacing. For instance: 190mm OLD QR goes with 197mm thru-axle spacing.

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. - 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

Like its QR cousin, the Disc Trucker Thru-Axle Fork is designed to mount racks and fenders and haul your worldly possessions. It's also got modern touches like dynamo routing, compatibility with flat-mount disc brakes, and three-pack mounts on both fork blades to satisfy your deepest cargo desires. Captured 12mm thru-axles make tool-free removal and installation possible. Offered in 26" and 700c wheel sizes, the Thru-Axle fork clears 26 x 2.1" or 700c x 47mm tires. With a 1-1/8" steerer, it's powder-coated and constructed using the same Chromoly steel as all our other frames and forks. Why? Because we swore a blood oath to steel and we intend to keep it. Note: The Disc Trucker TA Fork is designed to pair best with second-generation Disc Trucker models—those first released in 2020. Defy this guidance at your own peril. 26 Inch - Axle-to-crown: 376mm - Offset: 45mm - Steerer: 42–54cm frames = 300mm, 1-1/8" straight - 56–62cm frames = 400mm, 1-1/8" straight - Tire Clearance: 26 x 2.1" (with or without fenders) 700c - Axle-to-crown: 390mm - Offset: 45mm - Steerer: 56–64cm frames = 350mm, 1-1/8" straight - Tire Clearance: 700c x 47mm (with or without fenders)

The All-Around Fat Bike Wednesday sits in the middle of our Trail category, but don't let that fool you into thinking that's its only use. With Wednesday, we borrowed elements from some of our Trail and Touring models to create a versatile fat tire trail bike that can truly handle anything you want to attempt. If you do an equal amount of off-road touring as you do hitting trails, Wednesday's ability to play both parts equally will suit you well. Or, if you're looking for a fat bike and don't need the fattest tires on the market, Wednesday's 26 x 4.6" tire clearance is just the ticket. "Any day of the week's a great day to ride a Wednesday." - Modern mountain standards: stealth dropper post routing, 44mm headtube, suspension correction, front and rear thru-axles - Full suite of useful braze-ons: front and rear racks, multiple sets of three-pack mounts, fenders - Full-forward, short chainstay position: 26 x 3.8" tires on 80mm rims; full-rearward, longer chainstay position: 26 x 4.6" tires on an 80mm rim Specs: - Rear Dropout Configuration: Horizontal slotted with optional vertical dumpout - Rear Hub Spacing: 12 x 177mm (Surly axle included); 10 x 170mm with Surly 10/12 Adapter Washers (not included) - Front Hub Spacing: 15 x 150mm (Surly axle included) - Rear Brake: Disc - 51mm I.S. (203mm max rotor) - Front Brake: Disc - 51mm I.S. (203mm max rotor) - Head Tube: Ø44mm - Steerer Tube: Ø28.6mm (1-1/8") - Crown Race: Ø30mm (1-1/8") - Stock Headset Upper (S.H.I.S.): ZS44/28.6 - Stock Headset Lower (S.H.I.S.): EC44/30 - Front Derailleur (Clamp): High direct mount top-pull (Ø34.9mm) - Max Chainring (CL): 1x (Fat bike 170): 34T; 2x (Fat bike 170): 26/38T; 2x (Surly OD): 22/36T - Tire Clearance Frame: 26 x 4.3" (rear axle position); 26 x 3.8" (front axle position); 29 x 3.0" - Tire Clearance Fork: 26 x 5.25"; 29 x 3.0" - Rigid Fork Spec: 468 x 47mm - Max Suspension Fork Length: 511 x 51mm (Fatbike 100mm) - Bottle Mounts Frame: 2 Standard (XS - M); 3 Standard (L - XL) - Bottle Mounts Fork: 2 Three-Pack - Rack Mounts Frame: Yes (upper and lower threaded) - Rack Mounts Fork: Yes (upper, lower, and mid-blade threaded) - Fender Mounts Frame: Yes - Other Features: Internal dropper post routing compatible

The T-Shirt has been turning the blank, ennui-inducing human chest into an exciting billboard since the 19th century.

As you must know by now, wool resists odor. We have found that is a good feature in a sock. It also wicks and insulates better than cotton or all synthetic, so you can wear them comfortably in a pretty wide range of climates. Surly Socks are made by DeFeet using Merino wool and a small amount of synthetic material for increased durability. These ones here are 5" tall. Each design comes in four sizes so pretty much everyone should be able to find one that fits.

Midnight Special is a road plus bike designed to provide comfort and speed on those all-day rides that extend well beyond fresh pavement. Midnight Special shines on pot-holed, deteriorating pavement and the occasional long stretch of gravel. Its 650B road plus tires eat up road chatter and absorb all the bumps in the road like the champion it was designed to be. When it comes to road bikes, we just want to toss a few bananas into our pockets and see where the road takes us. We seek out varied surfaces on our rides and frequently go from pavement to gravel to worse pavement. Midnight Special allows us to accomplish all of that quite comfortably. - Higher volume tires allow better fine tuning of tire pressure on varying surfaces and create a wider contact patch for increased traction - Modern road standards like flat-mount disc brakes, 12mm front and rear thru-axles, and a 44mm head tube - Clearance for 650B x 60mm or 700c x 42mm tires without fenders (650B x 50mm or 700c x 38mm with fenders)

Midnight Special is a road plus bike designed to provide comfort and speed on those all-day rides that extend well beyond fresh pavement. Midnight Special shines on pot-holed, deteriorating pavement and the occasional long stretch of gravel. Its 650B road plus tires eat up road chatter and absorb all the bumps in the road like the champion it was designed to be. When it comes to road bikes, we just want to toss a few bananas into our pockets and see where the road takes us. We seek out varied surfaces on our rides and frequently go from pavement to gravel to worse pavement. Midnight Special allows us to accomplish all of that quite comfortably. - Higher volume tires allow better fine tuning of tire pressure on varying surfaces and create a wider contact patch for increased traction - Modern road standards like flat-mount disc brakes, 12mm front and rear thru-axles, and a 44mm head tube - Clearance for 650B x 60mm or 700c x 42mm tires without fenders (650B x 50mm or 700c x 38mm with fenders)

Lowside is the bike that gets you across town for a quick rip on singletrack, then over to the bar for a night out. 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" 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. 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" or 27.5 x 2.8" tires, the Lowside remains capable of running either option

Keep yourself hydrated during your next interplanetary excursion with our Intergalactic Water Bottle. Available in 22 oz. and 26 oz. sizes, it'll store your liquids while resisting stains, odors, and mold.

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 hub 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).

Surly makes bikes. They also make T-Shirts. Cotton construction, short sleeves, and available in a range of colors and sizes. - Please check the fit chart for sizing information - Men’s sizes Small–3XL

Surly makes bikes. They also make T-Shirts. Cotton construction, short sleeves, and available in a range of colors and sizes. - Please check the fit chart for sizing information - Women's sizes Small–2XL

Wool resists odor and wicks and insulates better than cotton and synthetic materials. This means you can wear Surly's socks comfortably in a wide range of climates. - Designed by Surly, custom produced by Defeet - Small–X-Large

Bridge Club is a highly versatile touring bike that perfectly hits the sweet spot, spanning on- and off-road excursions. Bridge Club is for those multi-surface outings — planned or unplanned. We've all run out the clock on a dirt tour and had to add in some paved shortcuts. Conversely, when you’re feeling a little zesty on your next road tour, Bridge Club is ready for reroutes through the woods. Some people hear "bike touring" and immediately think of long-forgotten stretches of highway, small-town oddities, and roadside attractions. Some instantly recall desolate stretches of desert dirt roads or lush green forest trails. With Bridge Club, you can have your dessert and eat it too! - Ultra-focused on simplicity, it only has the barnacles that matter most to the discerning bike tourist - Two build kit options: Pavement (700c) and Off-Road (27.5-inch) - Run racks and panniers, framebags, or all of the above - Disc brake-specific, single position, vertical rear dropout makes it less intimidating than other bikes in the category - Clearance for 700 x 47mm tires (with or without fenders), 27.5 x 2.80 tires (27.5 x 2.60 with fenders), and 26 x 3.0 tires (26 x 2.80 with fenders)

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

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

The Dinner Fork is non-suspension corrected and accommodates 26", 27.5", and 29" wheel sizes. If you want to run fenders alongside an 8 or 24-Pack style rack, this fork can do that. Hell, it relishes it. To give you even more options for carrying miscellaneous items, we put a set of 3-pack mounts on each fork blade, too. Run it on your current Surly for a thought-provoking new experience, or throw it on a different rig to unlock some off-road capabilities. A truly versatile piece of cutlery, the Dinner Fork features 100% Surly Chromoly steel construction, 51mm IS disc brake mounts, and clearance for tires up to 26 x 3.0", 27.5 x 2.8", or 29 x 2.2". Specifications: - Axle-to-crown: 420mm - Offset: 50mm - Steerer: 350mm, 1-1/8" straight - Tire Clearance: 26 x 3.0" (without fenders); 27.5 x 2.8" (with or without fenders); or 29 x 2.2" (without fenders) - Weight: 2.75 lb.

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

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. - 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

Steel Commuter and Gravel Bike Preamble is a hard-boiled steel commuter built for comfort, durability, and buffoonery on pavement and gravel. Nothing More is Needed. Nothing Less Will Do. The challenge was thus: Build a serious steel bike and give it only the attributes that matter most. Make it quick and comfortable on pavement, as well as confident and compliant on degraded surfaces. What the Enginerds put forth is Preamble, a pavement and gravel utility worker that proves you don't need to cut corners or clip coupons to make a more affordable steel bike. You just need to keep shit simple. Preamble can run racks and fenders and carry a couple water bottles. Surly was raised on stealing basic cable, after all. Smooth and efficient on asphalt, Preamble's double-butted main triangle provides a resplendent ride feel and withstands abuse from life's inevitable potholes. Make it your own with flat bars, drop bars, a basket, or bags. On the road to steel euphoria, Preamble is the gateway drug. Let facts be submitted to a candid world: - Offered in flat-bar and drop-bar configurations - Easy T-Shirt sizing to fit nearly every rider (XS, S, M, L, XL) - Sloping top tubes on XS and Small frames for improved standover and comfort - To offer the best rider experience for every frame size, XS and S frames get 650b wheelsets while M–XL get 700c - Custom-cast single-position vertical dropout

Surly Front Rack Hardware

Our family of Dirt Wizards is highly-focused – one might even say spellbound – on providing traction and control on the kinds of surfaces where nary traction nor control are to be found. Its tread is comprised of a dual row of aggressive, trail-gobbling, beveled knobs in the center and well-spaced, siped knobs to dig into loose corners. Designed to work on 50mm rims, Dirt Wizards are tall and wide, providing next-level traction and cushioning. The casings have been designed to be flexible and responsive, yet durable and supportive. Minimum rim size for these naughty little wizards is a 35mm outer rim width. - Folding bead - Casing: 60 TPI

Surly's Stainless Steel Chainrings last longer than their aluminum brethern because the 304 grade metal they use is 35% stronger. The rings aren't pinned or ramped so when one side starts to wear you can flip it around and pedal some more! They work great with singlespeed, fixed, and 1x9 applications.

Surly's Junk Straps can secure almost anything to almost anything else. Essentially an extra long toe strap, they're easy to use and store. And, trust us, these handy straps will get used often.

Surly Trailer Parts

Rated fully KICKASS by a very authoritative entity who will remain unnamed, Surly's cast and polished stainless steel clamps won't rust or chip paint because they can't (even the black ones!). They're shiny! They look good! And most importantly, they deliver the clampability seatposts crave.

When you’re out on a ride the last thing you want is to be limited by your tires in any way. Our ExtraTerrestrial Tires were designed to let you ride without limits by simply following the only tenets we have for tire design: they’re high volume and they kick ass. The ExtraTerrestrial tire was meant to serve as a heavy-duty off-road touring tire that shines on hardpack surfaces. It uses a nylon breaker in the sidewalls for cut protection, a molded pattern for anti-cut propagation, and a Kevlar cap under the tread to protect against flats. The ET Tire uses a distinctly directional tread pattern and its width yields more traction than you might expect from a tire with such little rolling resistance. The tread is low profile with a file tread in between tread blocks. The ExtraTerrestrial tire has enough width and traction for the soft stuff and won’t bog you down on smooth or hard surfaces. - Folding bead - Casing: 60 TPI

Our lugged and brazed Cross-Check fork has room for 700c x 45mm tires and fenders. It’s made from 4130 CroMoly steel and features fender eyelets at the dropouts, cantilever brake pivots, and now has through-leg mid-blade eyelets for mounting a rack. The eyelets are threaded 5 x 1mm and located 165mm up from the axle. Finish is powdercoat. - Axle-to-crown: 400mm - Offset: 44mm - Steerer: 300mm - Tire Clearance: 700c x 45mm - Weight: 2.3 lb (1.0kg) uncut