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Parts

Surly Open Bar Handlebar
$50.00
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 Constrictor Seatpost Clamp
$15.00
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 Singlespeed Spacer Kit
$40.00
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 Tuggnut Chain Tensioner
$30.00
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 Long Haul Trucker Disc Fork (700c)
$125.00
Classic 100% chromoly construction and engineered for modern accessories, that's Surly's Long Haul Trucker Disc Fork. Its beautiful curved blades are brazed to a lovely and tough investment-cast crown and dropouts. There are disc-brake mounts and eyelets for fenders and mounts for a standard or low-rider rack. Plus, it boasts a tough powdercoat finish that's très chic.
Surly Moonlander Fork
$116.00
Surly's Moonlander Fork has clearance for a 26 x 4.7-inch wide tire. It accepts specialty front hubs with a rear disc offset or 135mm rear hubs. It takes a front disc-brake adapter so you can run any brakes that come in a traditional front/rear set without having to break up a set. This fork features large-diameter, thin-wall chromoly blades that taper for a smooth and supple ride. And, it's got standard and low-rider rack mounts and comes in a tough powdercoat finish because it's awesome.
Surly Long Haul Trucker Disc Fork (26-inch)
$125.00
Classic 100% chromoly construction and engineered for modern accessories, that's Surly's Long Haul Trucker Disc Fork. Its beautiful curved blades are brazed to a lovely and tough investment-cast crown and dropouts. There are disc-brake mounts and eyelets for fenders and mounts for a standard or low-rider rack. Plus, it boasts a tough powdercoat finish that's très chic.
Surly Long Haul Trucker Fork (26-inch)
$125.00
Classic construction outfitted for modern accessories - that's Surly's Long Haul Trucker Fork. Curved blades are brazed to a beautiful investment-cast crown and dropouts. There are rim-brake posts, eyelets for fenders and mounts for standard and low-rider racks. Plus, the tough powdercoat finish is très chic.
Surly Cross-Check Fork
$125.00
Whether you want to go touring, to the Saturday 'cross race, commute around town, head out on a long road ride, or all of the above, Surly's Cross-Check fork has you covered. Crafted from 4130 chromoly steel, it features fender and rim brake mounts, and mid-leg eyelets for mounting a rack. Powdercoated black for style.
Surly O.D. Crank (100mm BB)
$125.00
Surly's Offset Double Crankset is designed specifically for bikes running very large tires and rims, such as Surly's Moonlander and/or Pugsley. The offset helps prevent chain rub on the tire. The crank is made of forged and machined 7075 aluminum, is 9- and 10-speed compatible and comes with 22- and 36-tooth 5-bolt chainrings. A precision Enduro bearing-equipped English-thread bottom bracket is included, so this versatile crankset is ready to spin.
Surly MWOD Bash Guard
$45.00
This aluminum bash guard is compatible with Surly's MWOD cranksets. Keep rocks and roots away from your chainring teeth and ride on.
Surly MWOD Inner Chainrings (Stainless)
$28.00 - $30.00
Surly's MWOD Inner Chainrings are made from stainless steel for extreme durability. These rings are compatible with Surly's MWOD cranks.
Surly MWOD Outer Chainring
$65.00
Surly's MWOD chainrings convert your Mr. Whirly crankset into an offset mountain double crank. In simple terms, they allow your fat bike to run an extra wide rear tire and rim combo (for example, 4.7-inch tires on 100mm rims or 82mm rims on your Pugsley) while avoiding chain-on-tire rub. This outer chainring bolts directly to the inner ring with four chainring bolts.
Surly Singleator
$50.00
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.
Surly Bearing Pre-Load Cap Non-Drive Crank Bolt
$6.50
Surly bearing adjust caps for Mr. Whirly and OD
Surly MDS Dropout Chips
$33.50 - $50.00
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 Monkey Nuts
$20.00
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.
Surly Mr. Whirly Crank Arm Fixing Bolt
$6.50
Surly Mr. Whirly Crank Arm Fixing Bolts - For use with Surly Mr. Whirly cranks only
Surly Mr. Whirly Spindle
$57.50 - $72.00
Surly Mr. Whirly Spindles. - 100% CroMoly steel - Proprietary dimensions and spline for use only with Surly Mr. Whirly cranks
Surly Narrow Wide Chainring
$65.00
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.
Surly O.D. Chainring
$65.00
The new chainrings are stainless steel and have improved ramps, gates, and pins for better shifting performance.
Surly O.D. Crank Enduro Bottom Bracket Cups
$65.00
Surly OD Cups - Compatible with 24mm spindles
Surly O.D. Enduro Bottom Bracket
$65.00
Surly OD Bottom Brackets - Compatible with 24mm spindles - Moonlander BB fits a 100mm bottom bracket shell, but exterior width conforms to BB121 standard
Surly O.D. Enduro Press Fit Bottom Bracket
$65.00
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 Big Dummy Frame Insert
$13.00
Surly Surly Big Dummy Frame Protective Plug Insert. - Notice the tapered end of each plug, if the end of a tube is dented, tap the protective plug into the tube with a soft hammer to round the tube out - Designed to prevent damage to the front bridge tube while frame is being shipped - Doubles as a tool to help round out any damaged bridge tubes or upright tubes during use of the bike - The diameter of the plug is designed to round it out to the correct diameter so that it receives accessories properly
Surly O.D. Crank (PressFit BB)
$250.00
Surly designed the O.D. crankset to offer frame and tire clearance while maintaining a reasonable q-factor (pedal stance). Maximizing the distance between the chain and the tire is important on fat bikes such as the Pugsley and Moonlander, or if you're running really big tires and rims on some other bike (like our new Krampus, for example). With normal cranks, wide tires on wide rims can rub the chain when in the lowest, or farthest-inboard, gear combinations. Like the MWOD crank, the O.D. crank doesn't just add a longer spindle to move the rings outboard. Rather, it does away with the big ring of a standard triple and moves the middle and granny rings to the outer and middle positions. This effectively moves the rings outboard without moving the arms outboard too. The O.D. is a simple, dedicated version of this idea. Neato! Forged of 7000 series T6 aluminum, the O.D. crank is a 2-piece, with spindle embedded inextricably in the drive side arm. It's a dedicated 2x, although its chainline is outboard a bit compared to standard mountain cranks, and it is 9 and 10 speed compatible. The 132mm, PF41 bottom bracket O.D. crank is what goes on the Ice Cream Truck bikes, so if you've got that setup, that's your crank. Surly also offers 33t and 20t rings separately. These chain rings are designed to shift best in specific combinations….change to a 39/22t, for example, and your shifting will suffer. The bearings on which they spin are also worth mentioning: Surly upgraded the bearings on these and the Mr. Whirly and MWOD cranksets to aftermarket Enduro bearings with double labyrinth seals, meaning they actively shed and stay clean of dust, muck, and grime, even in wet and muddy climates.
Surly Chainring Guard
$45.00
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.
Surly Snuggnut
$30.00
Like some of Surly's other chain tensioning devices, Snuggnut keeps your rear wheel from slipping forward in the dropout under the pedal load of your powerful gams. It's specifically designed for bikes that feature 12mm horizontal, vertical-slotted dropouts and is particularly suited for singlespeed application. Snuggnut is CNC-machined for durability and good looks, and shares many design features found on Tuggnut and Hurdy Gurdy. Note: The Snuggnut is compatible with horizontal thru-axle dropouts only. If using 10/12 Adapter Washers and QR wheels use a Tuggnut instead. Snuggnut is not for use with MDS Chips. Compatible models listed below: - Wednesday - ECR 29+ - ECR 27.5+ - Ogre - Krampus - Karate Monkey SS - Karate Monkey 27.5
Surly Disc Brake Adaptor
$7.00
Rear disc brake adaptor specifically designed ONLY for the Surly Troll, Ogre and ECR. - For use with 160mm rotor only - Brake caliper must be 74mm post mount compatible
Surly Hurdy Gurdy
$30.00
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.