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Surly Bikes

Surly Rack (Rear)
$155.00
This expedition-worthy rack is made from 4130 chromoly, so it's tough, light and easily repairable in the field. It's also height-adjustable, so you can get your center of gravity as low as possible for a stable ride. The provided stainless steel hardware enables you to attach your rack to virtually any frame with 26-inch, 700c and 29-inch wheels. And, it hauls up to 80 pounds of gear and is powder-coated to protect it from the elements.
Surly MWOD Chainrings
$92.99
Trust Surly to come up with a reasonable solution to a bizarre problem. The Surly MWOD chainring set moves a bike's chainline away from the spinning tire allowing for the use of super wide tires on extra wide rims. The genius part is that it doesn't increase the Q factor (a.k.a. width of the bottom bracket) and keeps the low gears necessary for pedaling bikes with monster tires. The chainring set bolts directly to Mr. Whirly cranks and is available in two sizes.
Surly Dirt Wizard 29-inch Tubeless Ready
$75.00 - $79.99
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
Surly Rear Rack Hardware Set
$59.99
Direct replacement item for Surly racks.
Surly MDS Dropout Chips
$33.50 - $49.99
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 Dingle Cog
$44.99
If you love the feel and simplicity of a fixed gear, but crave a bit more versatility from your steed, the Surly Dingle Cog has just what you need. By pairing the Dingle with two front chainrings that have a 2-tooth difference such as a 42T and a 44T (sold separately), you gain a gearing option and your wheel position and chainstay length stay the same. Suddenly your fixed gear is a two-speed so you can tackle varied terrain with more ease.
Surly Rear Thru Axle
$44.99
This low-profile bolted Thru-Axle is specifically designed for use with Surly thru-axle compatible frames. - Earlier, two-bolt design offers secure wheel fixing and either-side removal
Surly Knard Tire 700c
$24.99 - $40.00
Surly's Knard is a 700c 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.
Surly Cassette Cog
$35.00
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 Track Cog
$30.00 - $35.00
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 Rear Rack Lower Kit
$29.99
All the hardware for the lower portion of your Surly rear rack. Stainless steel.
Surly Tuggnut Chain Tensioner
$29.99
If you've got rear-facing horizontal dropouts and you don't want your chain to slip when your rear wheel pulls forward, then Surly's got you covered. The Tuggnut is made from investment-cast stainless steel and it'll hold your wheel in place. Plus, it comes with an adapter for quick release axles and features an integrated bottle opener.
Surly Cross Check Frame Decal Set
$19.99
Frame Stickers/Decals and a headbadge for repairing or repainting your Surly Cross Check.
Surly Plus Fat Bike Tube Presta
$19.99
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
Surly Constrictor Seatpost Clamp
$15.99
If you're suffering from a slipping seatpost, Surly has the remedy. The Constrictor Seatpost Clamp grabs your post tight and hangs on for dear life. It's machined from anodized aluminum billet, uses an 8mm bolt for ultimate strength, and can accommodate a rear cantilever brake hanger.
Surly 29 x 3-inch Presta Tube (Rabbit Hole/Knard)
$14.99
This is Surly’s 29 x 3-inch Presta valve tube. It fits their Knard tires and is made of butyl rubber.
Surly Rim Strip
$5.00 - $9.99
If you make huge rims you have to make huge rim strips too, and that's exactly how Surly's Rim Strip came to be. Made of PVC and available in 3 colors it protects your tube from the inside of the rim with stylish simplicity.
Surly Straggler Frame Replacement Dropout Screws
$9.99
Replacement dropout screws for the Surly Straggler. - Bolt length: 40mm
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