For repair, repaint, or whatever - Dry transfer style - Headbadge included

Surly Krampus Frame Stickers/Decals - For repair, repaint, or whatever - Dry transfer style - Headbadge included

Surly Krampus Frame Stickers/Decals - For repair, repaint, or whatever - Dry transfer style - Headbadge included

Surly Wednesday Frame Stickers/Decals - For repair, repaint, or whatever - Dry transfer style - Headbadge included

Surly Stainless Steel Track Lockring. - Fits all but Campagnolo, Miche or Phil Wood - 5mm thick with 0.65mm lip for maximum thread and lockring wrench contact

This is Surly’s 29 x 3-inch Presta valve tube. It fits their Knard tires and is made of butyl rubber.

Surly Inner Tube to fit a wide range of plus-size and fat bike tires. - Labeled Size: 26 x 3.0 - 4.8 - Weight: 310 g - Valve Core: Removable - Shaft Type: Threaded - ISO Width (mm): 76mm–100mm - Tube Compound: Butyl - ISO Diameter: 559 / 26-inch MTN - Valve: Presta Short 32-40mm

Whether for derailleur clamp clearance, tire clearance, or personal preference, sometimes it can be advantageous to run the wheel further back in the dropouts. Monkey Nuts install into Surly horizontal dropouts to make spacing the wheel back easy. There are 3 different sets depending on the type of dropout and axle configuration the dropout is intended for. Simply select the correct version of Monkey Nut, install it into the frame, and slam the wheel all the way forward. Bang, done.

Further personalize your unique Surly bike with one of four Surly Make It Your Own Decal Sets, featuring alternative fonts and designs for the discerning rider. Stickers may also be affixed to helmets, mini fridges, dog food bowls, and more. - Decals are available in black or white - Each set includes decals for the down tube, chainstays, and fork blades, a Surly Make It -your Own seat tube icon, Surly headbadge, and a ’Natch frame sticker - Dry-transfer style

Further personalize your unique Surly bike with one of four Surly Make It Your Own Decal Sets, featuring alternative fonts and designs for the discerning rider. Stickers may also be affixed to helmets, mini fridges, dog food bowls, and more. - Decals are available in black or white - Each set includes decals for the down tube, chainstays, and fork blades, a Surly Make It -your Own seat tube icon, Surly headbadge, and a ’Natch frame sticker - Dry-transfer style

Further personalize your unique Surly bike with one of four Surly Make It Your Own Decal Sets, featuring alternative fonts and designs for the discerning rider. Stickers may also be affixed to helmets, mini fridges, dog food bowls, and more. - Decals are available in black or white - Each set includes decals for the down tube, chainstays, and fork blades, a Surly Make It -your Own seat tube icon, Surly headbadge, and a ’Natch frame sticker - Dry-transfer style

Further personalize your unique Surly bike with one of four Surly Make It Your Own Decal Sets, featuring alternative fonts and designs for the discerning rider. Stickers may also be affixed to helmets, mini fridges, dog food bowls, and more. - Decals are available in black or white - Each set includes decals for the down tube, chainstays, and fork blades, a Surly Make It -your Own seat tube icon, Surly headbadge, and a ’Natch frame sticker - Dry-transfer style

Further personalize your unique Surly bike with one of four Surly Make It Your Own Decal Sets, featuring alternative fonts and designs for the discerning rider. Stickers may also be affixed to helmets, mini fridges, dog food bowls, and more. - Decals are available in black or white - Each set includes decals for the down tube, chainstays, and fork blades, a Surly Make It -your Own seat tube icon, Surly headbadge, and a ’Natch frame sticker - Dry-transfer style

Further personalize your unique Surly bike with one of four Surly Make It Your Own Decal Sets, featuring alternative fonts and designs for the discerning rider. Stickers may also be affixed to helmets, mini fridges, dog food bowls, and more. - Decals are available in black or white - Each set includes decals for the down tube, chainstays, and fork blades, a Surly Make It -your Own seat tube icon, Surly headbadge, and a ’Natch frame sticker - Dry-transfer style

Suitable as a tourniquet or stylish headband in a pinch, the Whip Lash's primary function is to help you attach whatever needs attaching to your bicycle frame. Available in a multi-pack that includes two 550mm lashes and one 695mm lash, the Whip Lash's potential is limited only by your imagination. You could use one to strap your beverage to the down tube when the trail says you ought to keep your hands on the bars. Or you could use another to fix your fishing gear to the top tube when rack space is maxed out. Whatever you get into on or off the bike, they're handy to have around because they're light, compact, and easy to use. Rubberized on one side to keep your stuff from slipping around, the Whip Lash's trimmable design features nylon construction and a simple hook-and-loop style closure.

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.

The Surly Jethro Tule rocks. It's made from tough, polished stainless steel and sports dual-purpose functionality. One end is the 15mm offset box end wrench you need to take your wheels off. While the other end provides stellar leverage and a bottle opener! That's two of the tools you need, in your pocket, all the time.

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.

Surly's Knard is a 27.5-inch x 41mm tire with the perfect tread for maximum traction and low rolling resistance. Designed for wherever your path leads, the Knard is the tire you want beneath you as you plot your next adventure.

All the hardware for the lower portion of your Surly rear rack. Stainless steel.

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

Surly Thru-Axles are low-profile, bolted Thru-Axles are specifically designed for use with Surly thru-axle compatible frames. Offered in several sizes, for both front and rear wheels. 12x142 Rear Thru Axle: - Fits: Midnight Special and MDS Dropout bikes including Instigator, Legacy Karate Monkey & Legacy Krampus. 12x142/148 Rear Thru Axle: - Designed for frames with Surly Gnot Boost spacing (145mm), capable of working with 142 or 148mm rear hubs - Fits: Karate Monkey, Krampus, Troll, Ogre, ECR 12x177 Rear Thru Axle: - Fits: Wednesday 12x197 Rear Thru Axle: - Fits: Ice Cream Truck, Big Fat Dummy 12x100 Front Thru Axle: - Fits: Midnight Special 15x110 Front Thru Axle: - Fits: Karate Monkey, Krampus 15x150 Front Thru Axle: - Fits: Wednesday, Ice Cream Truck, Big Fat Dummy

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.

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.

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

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.

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

Slip this Lightweight Neck Toob from Surly over your head to keep your face and neck warm and dry. Wear it on your bike or wear it when you’re nowhere near your bike. Cuff the hem or don’t. It’s your Toob. - Lightweight merino wool - One size fits most - The product testers say it’s pretty comfortable

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

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.

Surly makes bikes. They also make T-Shirts. Cotton construction, short sleeves, and available in a range of colors and sizes.

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.

This is our Excellent Adventure Thru-Axle. It upgrades your bike's rear end for hauling cargo trailers, should you feel like taking Rufus along on your errands. Extensive product testing with our Bill and Ted Trailers provided an "awesome experience," but time travel remains a risky endeavor. Designed for use with slotted horizontal or vertical single-position dropouts, the Excellent Adventure Axle is compatible only with 12 x 148mm hubs. Compatible Surly models include Skid Loader, our compact electric cargo bike, as well as Karate Monkey, Krampus, Grappler, Ogre, Lowside, ECR, and Troll. Once again, the 12 x 148mm hub requirement cannot be overstated. Visit your local Surly dealer to discuss other scenarios you may have in mind. - 12 x 148mm hub compatibility only - Designed for use only with Surly's Bill and Ted Trailers - Works with slotted horizontal or vertical single-position dropouts

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 makes bikes. They also make T-Shirts. Cotton construction, short sleeves, and available in a range of colors and sizes. - 60/40 combed ring-spun cotton/polyester blend - Side seams - Tear-away label

The Surly Hurdy Gurdy is a stainless-steel chain tensioner designed to prevent rear wheel slippage in semi-horizontal, forward-facing dropouts, like those on the Surly Cross-Check. Its construction provides long-term durability, while dual axle holes allow for a wide range of fore/aft wheel adjustment. Compatible with standard quick-release skewers, bolted axles, and nutted axles up to 10mm.

Surly makes bikes. They also make T-Shirts. Cotton construction, short sleeves, and available in a range of colors and sizes. - 60/40 combed ring-spun cotton/polyester blend - Side seams - Tear-away label

The Surly Tuggnut is a stainless-steel chain tensioner designed to keep rear wheels securely in place in rear-facing horizontal dropouts, including Surly frames. Its investment-cast body ensures strength and durability, while the thumbscrew and dual axle holes offer a wide range of fore/aft adjustment. Includes an aluminum adapter sleeve for compatibility with both 10mm nutted and 6mm quick-release axles. Also features a built-in bottle opener.

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.

The Surly Dugout Bag is a great cargo solution for securely attaching compact items or bottles to your bike’s handlebar and frame. Engineered with one-handed operation in mind, interior cargo, and exterior pockets are easily accessible and made of bluesign® approved fabric and lining for best sustainable practices. The Dugout bag mounts onto any size frame with four connection points and carries up to three pounds of cargo or one 1-liter beverage. It also comes with a Surly Whip Lash Gear Strap for enhanced stability when riding rugged trails.  The Surly Dugout Bag is a great cargo solution for securely attaching compact items or bottles to your bike’s handlebar and frame. Engineered with one-handed operation in mind, interior cargo, and exterior pockets are easily accessible and made of bluesign® approved fabric and lining for best sustainable practices. The Dugout bag mounts onto any size frame with four connection points and carries up to three pounds of cargo or one 1-liter beverage. It also comes with a Surly Whip Lash Gear Strap for enhanced stability when riding rugged trails.  - Mounts using four connection points to provide stability on rougher trails  - Adjustable fit allows for compatibility on all bike frame sizes - Securely carries up to 3 lbs of cargo and up to 1-liter bottles  - Exterior pockets hold extra cargo space for snacks, tools, and more - Manufactured with bluesign® materials for lessened environmental impact  - Can be accessed with one hand for ease of use

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 TPU, or Thermoplastic Urethane, tube is a tough, airtight material lighter than traditional butyl innertubes. It is designed exclusively for the Surly Molenda tire, and allowed for a custom, oversized 6.2" width that maintains its structure, even when operating at low pressures. With the TPU tube installed, you can air down your Molenda tire to maximize contact patch for better flotation, traction, and overall performance.

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.

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)

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

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

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 Surly 1x1 Singleator offers a reliable, adjustable solution for tensioning chains on singlespeed drivetrains with vertical dropouts. Designed to mount directly to a standard derailleur hanger, the Singleator features a triple-sealed spring, floating 11-tooth pulley, and fully adjustable chain line. Its forged body and stainless-steel pivot bushing ensure long-term durability, while chain guides and a wide cog capacity support consistent, quiet operation. Compatible with both 1/8" and 3/32" chains.

You are not required to haul humanoids with your Surly Longtail Cargo Bike, but if you choose to do so, you may invite them to rest their hooves on the Surly Round Pegs. If your hitchhiker would prefer to dangle their lower extremities all willy nilly instead of placing them on the Round Pegs, that is fine. The Round Pegs do not have feelings. They are made of 6061-T6 aluminum, sold as a pair, and compatible only with Big Easy, Big Dummy, and Big Fat Dummy. - 6061-T6 alloy construction - Sold as pair

Track stars and fixed-gear converts will love Surly's Ultra New Front Hub. This gorgeous hunk of aluminum sports sealed bearings for all-weather reliability and low friction. And, the hollow axle is forged from flex-free chromoly for steering precision, long-lasting durability and simple quick-release compatibility.

Surly OD Cups