Surly Bikes

The Cheater Bar is built from triple butted 4130 CroMoly steel and is tough enough to handle all of the abuse you will inflict upon it on the trail. Surly made two versions: a clear coated raw steel version and a black ED coated version. Both are CroMoly steel. - Material: Cromoly steel - Clamp diameter: 31.8mm - Width: 780mm - Rise: 0mm - Sweep Angle: 11 degrees - Color: Clear Coat Silver and E.D. coated Black - Weight: 400g

The Surly Deck Bar is just what it sounds like, a convenient handlebar that attaches to the rear deck of the Big Easy, Big Dummy or Big Fat Dummy. Once attached, you will find that this is a very nice place for your passengers to grip and hold on tight while you cart them around town. I mean it’s that or the old uncomfortable around the waist hug move. You can decide what’s best for you and your passengers. Grips are also included with the bar, so you’ve got that going… - The Deck Bar attaches directly to the Dummy Deck to offer a secure hand grab for passengers - Provides a solid, comfortable handhold for riders large and small - Also available as part of the Corral Kit

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 - Max pressure: 30psi

Made from lightweight Merino wool, the Surly Raglan offers breathable comfort on warmer days and easy layering during harsh, inhospitable cold. - 100% Merino Wool is a natural insulator that resists odor and wicks moisture

Surly's Ultra New Disc Front Hub is a gorgeous hunk of aluminum that boasts reliable sealed bearings and a 6-bolt disc attachment. The forged chromoly axle is flex-free for steering precision, long-lasting durability and simple quick-release compatibility.

Who doesn't like t-shirts? Idiots, that's who. What's not to like? You can wear them all the hours of the day. They work equally well in the shower as they do in the pool. They function as both daywear and eveningwear. Surly tripled its functionality by adding a pocket. A POCKET!!! Now they've taken that infinitely versatile garment (it's the Cross Check of Clothes) and had it made out of (what Surly would call our their favorite material) merino wool (after steel and rubber, silly). In short, it's a t-shirt, it's wool, it's got a pocket (A POCKET!!), you wear it. Donzo.

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

When you're out on a ride the last thing you want is to be limited by your tires in any way. Surly's ExtraTerrestrial tires were designed to let you ride without limits by following a simple tenet for tire design: make 'em high-volume and kick-ass. The ExtraTerrestrial tire was meant to serve as a heavy-duty off road touring tire that shines on hard pack 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 blocks. The ExtraTerrestrial tire has enough width and traction for the soft stuff and won't bog you down on smooth or hard surfaces. It's made to be durable and versatile and is at home on tour or on the trail. - Bead Seat Diameter: 559mm - Casing: 60tpi, tubeless-ready bead (928g)

An issue many people ran into when they began using 1x setups was chain retention with the front chainring. In the beginning of the 1x movement, many companies dealt with this by using aftermarket chain keepers that somehow bolted to the frame. Many people discovered that using a narrow-wide chainring in conjunction with some type of 'clutch' rear derailleur helped abate or eliminate these chain-jumping issues. Narrow-wide rings use alternating tooth profiles that more positively engage the chain and help control a deflecting chain in bumpy conditions. Your friends at Surly have partnered with SRAM to bring you stainless steel X-Sync chainrings. Stainless Steel is durable. This durability is pretty useful when you're talking about the one ring that is bearing the brunt of all your miles.

In today’s fast-paced world of riseless flat bars and far-too-aggressive-for-our-liking cockpits, Surly harkens back to simpler times. They wanted a handlebar that would suffice for a relaxed cruise to a favorite windowless bar, but would also be suitable should a person decide to take the long way home. The Sunrise Bar is a cruiser bar, a trail bar, and a BMX bar all rolled into one. It has a 22.2mm clamp diameter, but Surly included some Problem Solvers shims so you can mount it up to your fancy 31.8mm stem. Material: CroMoly steel Clamp diameter: 22.2mm; Includes shims for 31.8mm clamp Width: 820mm; Can be cut to 720mm Rise: 83mm Sweep Angle: 14.7 degree backsweep, 6.7 degree upsweep Weight: 778g including shims Color: Black

Build your singlespeed or fixie bike around Surly's Ultra New Roadie Rear Hub. This gorgeous hunk of aluminum has the capability you need and reliable sealed bearings, too! It sports threads for a track cog and lockring on one side and a freewheel on the other so you can decide how you want to roll. Plus, this hub's 130mm width fits most road frames and the hollow chromoly axle provides a flex-free ride as well as simple quick release skewer compatibility.

Surly's Dummy Deck provides a light, durable platform for cargo bikes, built to Xtracycle's Longtail standard — including the Big Dummy, of course. The Dummy Deck is stamped from 4mm-thick aluminum, chosen for its strength, durability, and recyclability, and it bolts directly to Surly Dummy Rails to stiffen and stabilize the whole system (it's also compatible with Xtracycle V-racks by using Xtracycle's SuperHooks). It features cut-outs for routing straps and cordage, a mounting hole for a rear light bracket, accessory-mounting holes, and countersunk holes for SuperHook hardware.

Dummy Rails support Dummy Bags on your Big Dummy cargo bike, and Surly's Dummy Deck bolts directly to them, stiffening the whole system for a more stable load. Dummy Rails are made of light, strong aluminum and were designed in conjunction with the Dummy Deck and Dummy Bags; each component works best when used with the others. Like all Surly products, they've built in lots of useful details. For example, the deck-attachment bosses stick up from the rails to create space between the deck and rails, providing windows to route tie-down straps and cordage; and threaded bottle cage bosses located at the rear of each rail provide mounting locations for accessories: bottle cages of course, or lights, cameras, pumps, flags, horns, light saber scabbards, disco balls, spittoons, cornucopias, etc. Dummy Rails will work with cargo frames (including the Surly Big Dummy) built around Xtracycle's longtail standards.

The new chainrings are stainless steel and have improved ramps, gates, and pins for better shifting performance.

Surly OD Bottom Brackets - PF cups are 41mm in diameter - Bearing I.D. is 24mm - OD bottom bracket comes with telescoping center sleeve for added durability - High quality double labyrinth sealed stainless Enduro bearings with corrosion resistant coating - 3 additional 1mm spacers are provided to help with chain line and crank arm clearance

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, and the teeth are 2.1mm thick so they work well with 9-speed chains.

The Surly Truck Stop Handlebar combines the benefits of a drop bar with those of a riser bar. Offering a variety of hand positions for comfort over the long haul, it also features 30mm of rise for a more upright and relaxed riding position. With a clean aesthetic, it’s a great option for taller riders looking for more rise and for bikes with a low-cut steer tube. - Lightweight, aluminum construction - Available in various widths - 31.8mm clamp diameter

The Moloko Adjunct Personal Effects Receptacle is made from urethane-coated nylon canvas and designed to fit in the center of the Surly Moloko Bar. It has space for essentials and can easily be accessed while riding. - Constructed from urethane-coated nylon canvas to provide water-resistant protection - Elastic cord on top snuggly secures extraneous loose items like wrappers or gloves - Integrated light port allows a battery cord to pass through - Dimensions: 254 x 90 x 90mm

Surly OD Cups - Compatible with 24mm spindles

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.

We designed the Surly TV Tray to help riders boost the capacity of their current rack setups. Designed for easy pairing with nearly all Surly racks and most other racks on the market, mount this sturdy aluminum platform on top of your current rack to provide a footprint large enough for 30 lbs. of beef jerky, 9-volt batteries, used pinball parts, or whatever else you might need to haul. Available in dark black. - Load weight limit 30 lbs. - 15-3/8 x 10-inches - Rack weight 650g - 6061-TB Aluminum - Not compatible with Surly 24-Pack Rack or Wide Rear Disc Rack - Mounting Hardware Included

Surly's Open Bar Handlebar is the go-to option for a good time. It features lots of space for grips, shifters, brake levers, or any combination of the a fore mentioned. The swept-back angle is comfortable for your wrists, and the stout chromoly construction is durable yet compliant. It's at home on bike paths or neighborhood cruises, and at an ominous 666mm, it's even wide enough to tackle some singletrack.

Surly Mr. Whirly Spindles. - 100% CroMoly steel - Proprietary dimensions and spline for use only with Surly Mr. Whirly cranks

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 - Recommended rim width: 23 – 30mm

The Knard is a tire that just makes sense. With its tightly-spaced, low-block tread pattern, it provides the perfect ratio of traction and low rolling resistance. It grips well on all sorts of different surfaces and will haul some sausage on hardpack terrain or groomed trails. If you want a tire that has a little less bite and a bit more speed but don’t want to sacrifice traction, look no further. With sizes ranging from a svelte 41mm all the way up to a hefty 4.8”, there’s a Knard to solve all your fast-rolling needs. - Folding bead - Casing: 60 TPI - Max pressure: 75psi - Weight: 510g

The Knard is a tire that just makes sense. With its tightly-spaced, low-block tread pattern, it provides the perfect ratio of traction and low rolling resistance. It grips well on all sorts of different surfaces and will haul some sausage on hardpack terrain or groomed trails. If you want a tire that has a little less bite and a bit more speed but don’t want to sacrifice traction, look no further. With sizes ranging from a svelte 41mm all the way up to a hefty 4.8”, there’s a Knard to solve all your fast-rolling needs. - Folding bead - Casing: 60 TPI - Max pressure: 75psi - Weight: 660g

The 12mm slotted MDS dropout is the newest chip for Surly's MDS equipped trail frames. You like chips, don't you? The 12mm slotted dropout chip uses a standard derailleur mount for maximum compatibility and is made of cast and machined 6061-T6 aluminum, with a fender eyelet. What's the coolest part about the 12mm slotted MDS chip, you ask? The fact that it also has the capability to run a 12 x 142mm thru-axle in a single speed configuration. This is good news because single speeds are good news. When you get an MDS equipped frame you're getting the option to set it up however you want. You can run a 142 x 12mm thru-axle rear end with a direct mount Shimano hanger, standard 135mm QR or The Mighty Singlespeed. The way this will work is that Surly complete bikes that feature the MDS will ship with whatever chip is compatible with derailleur spec. For instance, the complete Instigator 2.0 ships with the 142 x 12mm thru-axle Shimano chip. If you want to change it to a singlespeed later (and why wouldn't you?), all you have to do is get the SS chip. Frames will ship with all three MDS chips so pick your poison. The 142 x 12mm and 135mm QR chips are made of cast and machined 6061-T6 aluminum and The Mighty Singlespeed chip is 304 stainless steel, because the two words 'aluminum' and 'singlespeed' should never be too close to each other. Bad things can happen…. As you can see, the MDS gives you not just different build options, it lets you use a more varied selection of parts for your frame up builds. The MDS is featured on most of our trail bikes. That's right: Krampus Ops, Karate Monkey Ops, Instigator 2.0 and Ice Cream Truck frames all sport these puppies.

Turn your geared bike into a singlespeed machine with Surly's Singleator. The Singleator mounts to your derailleur hanger and provides a smooth, quiet and adjustable means of tensioning the excess chain slack on any bike. It's made from strong forged steel and features a triple-sealed spring, large-cog capacity, chain guides, fully-adjustable chain line, floating pulley, and a stainless-steel pivot bushing. And, it works with both BMX and standard chains.

Single chainring drive train setups are all the rage these days. With the introduction of exceedingly wide range 10- and 11-speed cassettes, the need for two chainrings has become a thing of the past. But when you only have one chainring, the only thing standing between you and a long walk back to the trailhead is you making sure you don't destroy your one chainring. That's why Surly made a chainring guard to fit O.D. cranks. It is made of aluminum and will take the hit for your chainring. It comes in 5 bolt, 94mm BCD and was designed to protect 22t – 30t rings.

Pair this kit with a cassette cog of your choosing (sold separately) and discover the joy and simplicity of a singlespeed without the cost of a new wheel. The Singlespeed Spacer Kit includes a variety of high quality aluminum spacers so you can dial your chainline and a stainless steel lockring to tighten everything down right.

Surly Trailer Parts

The Surly Deck Pad is the ultimate in cargo bike derrière accessories. Sold individually, the Surly Deck Pads are designed to easily attach to the rear decks of our Big Easy, Big Dummy and Big Fat Dummy for a luxurious passenger riding experience. Simply put, they make riding on the back of our cargo bikes even nicer. Two Pads will cover the whole deck, so there, now you know. You could probably even convince your ride-along friends or children to chip in and help pay for them. After all, nobody rides for free. - The Deck Pad mounts to the Dummy Deck to provide a soft platform for passengers large and small - Sold each - Also available as part of the Corral Kit - Individual Deck Pads measure approximately: 13”x8”x2”

Surly's Junk Straps are basically really long toe straps. They're 120cm woven nylon with a stainless steel buckle. Surly had them made to specification to ensure that they work well and last a long time. They're easy to use and they stay tight. Once you're ready, loosening them is quick and easy. They're light, pack small, and securely and conveniently attach all kinds of stuff to your rack, basket, handlebar, backpack, under your seat, around your thigh…just about anyplace. You can combine them for even longer straps. - Pack of 6

Shirts are a color, sometimes it's black, or green, or red, or gray or one we haven't picked yet. Printed Surly logo on the front is different color, usually black or white.

What do you get when you smash together Roy G. Biv and radioactive psilocybin? This t-shirt, that's what. It's got long sleeves to keep your arms warm, plus a healthy dose of self-confidence. See you on the dark side of the moon.

A properly set up tubeless fatbike tire is like the holy grail of suppleness and, until now, we've forced you all to piecemeal together a tubeless kit for your Other Brother Darryl rims (Sorry about that. It won’t happen again, we promise… probably). But now you don’t have to do that anymore because our Tubeless Kit has everything you need to ditch your fat tubes. It comes with two of our nylon rim strips, a roll of Whisky Parts Co. tubeless tape, two tubeless valves, and two Problem Solvers Super P-Nuts. Just add your favorite sealant and let ‘er rip.

The Surly Born to Lose Snap Back Hat is one size fits all, designed to fit even the largest of skulls. With its classic 6-panel design, you’re getting that bonus panel that you’ve maybe always wanted. - Surly logo patch - One size fits most

Pair this cog with your Shimano-compatible rear hub, spacers and a lockring (sold separately) and discover the joy and simplicity of a singlespeed without the cost of a new wheel. Machined from heat-treated chromoly and then chrome plated, these seriously tough cogs are strong, shiny and they come in sizes from 13T to 22T so you can pick the perfect gear.

Surly's Cycling Cap is their modern-yet-old-school take on a classic piece of riding wear. It's comfy in a huge range of temps and fights sweat and odor thanks to 100% wool construction. It works good, feels good, and looks good. What more could you want?

Hurdy Gurdy is another nifty device that keeps a rear wheel from slipping forward in the dropout under pedal load. It's designed for the Cross-Check's semi-horizontal front-loading dropouts, and will also work on many other similar dropouts. Hurdy Gurdy is investment cast of stainless steel for durability and good looks, and shares many of Tuggnut's design features. Its two axle holes allow for a wide variety of fore/aft wheel positions, it will work with standard QRs, bolted axles, and nutted axles up to 10mm.

Hi, I'm the Surly Lightweight Neck Toob. You might remember me from such films as “It's Cold! Don't Forget Your Neck Toob!" and “Look At This Thing, It Came From a Sheep!" Right now you might be thinking, “But Surly, I already have a Neck Gaiter from you guys. Do I really need a Neck Toob?" And the answer is maybe. Unlike the existing Neck Gaiter, which is made of a light inner layer and a midweight outer layer, I'm made of two lightweight layers. For those days when it's too chilly to leave your face and neck exposed but not cold enough for the full-blown Gaiter, I try to provide a nice, moisture-wicking alternative. I'm sized to fit most necks, and I can be worn a bunch of different ways. Thanks for tuning in, we'll see you next time. Your Friend, The Surly Neck Toob

This Surly snapback logo hat is one size fits all, designed to fit even the largest of skulls. With its classic 6 panel design, you’re getting that bonus panel that you’ve maybe always wanted. - Embroidered Surly logo - One size fits most

Shirts are a color, sometimes it's black, or green, or red, or gray or one they haven't picked yet. Printed Surly logo on the front is a different color, usually black or white.

Shirts are a color, sometimes it's black, or green, or red, or gray or one they haven't picked yet. Printed Surly logo on the front is a different color, usually black or white.

Surly's MWOD Inner Chainrings are made from stainless steel for extreme durability. These rings are compatible with Surly's MWOD cranks.

The Surly Psilly Billy Snap Back Hat is one size fits all, designed to fit even the largest of skulls. With its classic 6-panel design, you’re getting that bonus panel that you’ve maybe always wanted. - Surly logo patch - One size fits most

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, and the teeth are 2.2 - 2.3mm thick so they work well with wider chains.

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, and the teeth are 2.2 - 2.3mm thick so they work well with wider chains.

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

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

Machined from heat-treated, chrome-plated chromoly, these seriously tough cogs will hold up to massive track sprints and crazy skid-stops. Surly's Track Cogs are strong, shiny and they come in two widths and sizes from 13T to 22T so you can select the perfect gear.

Surly Trailer Parts - These hitch mounts are for connecting Surly Bill and Ted trailers to any 10x1mm solid axle; they replace standard locknuts - They also include threaded stubs for direct mount to Surly Troll and Ogre frames; these frames have eyelets drilled into the dropouts specifically for these mounts

A skewer for your Surly Trailer.

For warmth, comfort, and dependable moisture-wicking properties, the Surly Wool Beanie in black might be a good option. Here's why: - Made of lightweight merino wool - One size fits most - Fits under your helmet Still undecided? Check out these mind-blowing facts from my 4th-grade presentation about sheep. 1) Sheep are smart. They can recognize up to 50 different sheep faces. They can recognize human faces, too — maybe even yours. 2) Sheep have rectangular-shaped pupils that can see almost 360 degrees around them. They can even see what's behind them without turning their head. 3) There are over 900 breeds of sheep in the world. The Merino is a very popular breed, and its fine, soft wool is often used for clothing — for example, the Surly beanie. In closing, sheep are very interesting animals and their wool is a useful material. Take it from me, I passed the 4th grade.

Surly Ultra New Axle Kits are for upgrading the internals of your existing Surly New hubs or replacing the internals on your Surly Ultra New hubs. -Compatible with Surly New hubs (upgrade kit) and Surly Ultra New hubs (replacement kit) - Each kit contains an axle, two 6901 cartridge bearings, two aluminum dust shields, two stainless steel cones, two stainless steel 6x1mm bolts, and two stainless steel bolt washers - Axle is quick release and bolt-on compatible; bolts included, QR is NOT included - Standard Surly New hubs come stock with 7901 bearings; this kit uses 6901 bearings which are non-angular

Surly's Dummy Rail Collars are nothing more than a simple clamping device that buttresses the connection between your Big Dummy Frame and the Dummy Rails. They increase the stiffness of the interface of these two parts and help keep your cargo from getting its salad tossed… unless of course your Dummy Bags are filled with tossed salad. These are designed specifically for use with the Big Dummy frame and Dummy rails, and will not work with Xtracycle rails. WARNING: Properly installed Dummy Rail Collars are required for carrying live cargo on your Big Dummy.

Surly's low-profile, bolted Thru-Axles are specifically designed for use with Surly thru-axle compatible frames. Not sure which one fits your bike? Get in touch, and we'll ensure you're choosing the correct axle for your application.

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