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Parts

Inventory varies across our stores. Please call to ensure the product you are looking for is in stock at the location you plan to visit before stopping by. You can always buy online for in-store pickup.

Belmont Wheelworks - 617.489.3577 | ACE Wheelworks - 617.776.2100

$103.99 - $135.99
Shimano's Di2 electric drivetrain takes shifting to the next level. Two Di2 Battery Chargers are available. Choose the model designed for your system's battery. An additional power cable is required for the external-style battery charger (sold separately). These chargers fully charge the battery in 90 minutes.
$115.99 - $131.99
- Series: SORA - Crank Construction: 2-piece crank construction - Bottom Bracket: BB-RS500, BB-RS500-PB - Chain Line: 43.5 - 9-speed - Four-arm BCD
$115.99 - $124.99
The Hellbender 70 bottom bracket utilizes a bearing made of 440C stainless steel, providing exceptional ride quality and reliability. The stainless steel bearing in the Hellbender 70 strikes a perfect balance between value and lasting performance. - 440C stainless steel bearings, dual lip seal, marine grease - Machined aluminum cups
$124.99
For use with Specialized Future Shock equipped bicycles
$124.99
Making its debut on the all-new Roubaix the S-Works Future stem is the stiff lightweight upgrade that your Roubaix has been waiting for. It's compatible with all Future Shocks and our Specialized accessory mount and its sleek design will create a seamless integration. - Sleek & seamless integration with all Future Shocks. - Supremely stiff for responsive handling and feel. - Compatible with the Specialized accesory mount. - 6-degree rise - Length options: 70-140mm - Approximate weight: 145g (100mm)
$124.99
Lean and clean. The lightweight and stiff S-Works Tarmac Stem features integrated cable routing for Tarmac SL7 models to clean up the cockpit without complicating the bike build. - Compatible with Tarmac integrated cockpit. - Integrated face-plate computer mount. - 80-140mm length options. - 6 and 12 degree rise options. - Approx. weight: 155g (100mm)
$124.00
Maximum range, minimum fuss. This 12-speed 11-44T cassette provides 2x range in a 1x package and fits on a traditional 11-speed driver body for broad integration. The smooth cog progression keeps jumps between cogs tightest when it's time to go fast, with more meaningful gaps for climbing. - 12-speed - 400% range gives the coverage 1x riders want - Cog sizes: 11, 12, 13, 15, 17, 19, 21, 24, 28, 32, 38, 44 - For use with XPLR 1x rear derailleurs - Compatible with Flattop chains - For 11-speed road driver bodies
$122.59
External English (BSA) threaded bottom bracket for 73mm shells. Wheels Mfg uses only Enduro bearings and silicone seals for the most durable and smoothest bottom brackets available. Fully serviceable. Includes: (2) - Enduro Silicone dust seals (1) - 2.5mm aluminum BB cup spacers for use with 68mm wide BB shell (1) - 1.8mm aluminum BB cup spacers for use with 68mm wide BB shell (1) - 0.7mm aluminum BB cup spacers for use with 68mm wide BB shell (2) - 0.5mm crank spindle spacers (2) - 1.0mm crank spindle spacers (1) - Wave Washer Direct replacement for SRAM/Truvativ GXP bottom brackets! - Bearings: Enduro Angular Contact - Color: Red - Bottom Bracket/Frame Interface: ISO/English or BSA Threaded (1.37 in x 24 TPI) - Bottom Bracket Shell Width (mm): 68-73mm - Bottom Bracket Shell I.D.: 33.6-33.9 mm - Crank Spindle Type: GXP (SRAM, Truvativ, Etc.) - Crank Spindle Diameter: 22/24mm - Weight: 116g
$114.99 - $122.00
Leveraging the legendary history of SRAM shifting, the GX 2x11 rear derailleur provides incredible shifting speed and precision. X-Actuation technology eliminates slop and shifting variation while SRAM's roller bearing clutch technology delivers maximum drivetrain stability—even through the most punishing terrain. And with SRAM's Cage Lock, wheel removal and installation are easier than ever. • X-Actuation for precise and dependable 11-speed performance • Focused chassis design for all conditions and usage • 10-42-tooth wide range cassette compatible
$121.99
- Series: SORA - Shift Lever Type: STI - Front Shifting: 2 or 3 - Rear Shifting: 9-speed - Shift Cable Casing: OT-SP41 - Adjustable Reach: Yes - Brake Lever Actuation: Short Pull Super SLR - Cassette Spacing: Shimano/SRAM 9 - Color: Black
$114.99 - $121.95
Thomson's Elite Seatpost is perhaps one of the most recognizable bicycle components in the world and it has earned its reputation as a super-strong, light and reliable beauty. With roots in the aerospace industry, Thomson builds the post with a tough and light 7000-series aluminum body, an elliptical extrusion that adds strength and stiffness, and a head and seat clamp forged and machined from a block of aluminum to eliminate any possible weak areas. Plus, its simple-to-use 2-bolt seat clamp allows speedy, infinite and secure seat angle adjustment from minus 5 degrees to plus 29 degrees. Upgrade your favorite ride to a Thomson seatpost and start riding in style.
$120.99
The Shimano 105 R7000 mechanical brake Dual Control Levers bring quick and intuitive shifting and confidant braking in an affordable package. Features - Redesigned internal shifting unit - Greater reach adjust range - Easier access to inner shift cable - Quick and intuitive rear shifting operation - Reliable performance in race conditions - Lighter front shifting when paired with FD-R7000
$120.99
• Multiple simultaneous display fields • Battery level • Gear position • Shift mode (Synchronized or Manual) • FOX iCD position (Climb or Descend) • Shimano Synchronized Shift mode switch • Change between S1, S2, and Manual shift maps • Audible Shimano Synchronized Shift notification tone • Precision derailleur adjustment • Easy access adjustment mode • Numerical adjustment indicator • Junction A function • Battery charging port • Three E-tube wiring ports
$120.00
The Cambium C15 All Weather saddle is made for years of hard riding, in a forward riding position, for more sporty cycling. With the same contemporary design of the Brooks Cambium range, the All Weather is a durable and comfortable saddle that is “ready to ride”, thanks to a vulcanized natural rubber top for flexible performance requiring no breaking in period. From freezing rain to blazing sunshine, the waterproof, weatherproof nylon cover is made to perform flawlessly in all conditions. Additionally the updated fiberglass reinforced back plate has loops for a saddle bag or other accessory.
$120.00
The Cambium C15 All Weather Carved is made for years of hard riding in a forward riding position, and features hole for pressure relief and additional flex, eliminating contact points which cause discomfort for some riders. With the same contemporary design of the Brooks Cambium range, the All Weather is a durable and comfortable saddle that is “ready to ride”, thanks to a vulcanized natural rubber top for flexible performance requiring no breaking in period. From freezing rain to blazing sunshine, the waterproof, weatherproof nylon cover is made to perform flawlessly in all conditions. Additionally the updated fiberglass reinforced back plate has loops for a saddle bag or other accessory.
$120.00
The Cambium C17 All Weather is made for years of hard riding in an angled riding position, for commuting in the city or travelling the globe. With the same contemporary design of the Brooks Cambium range, the All Weather is a durable and comfortable saddle that is “ready to ride,” thanks to a vulcanized natural rubber top for flexible performance requiring no breaking in period. From freezing rain to blazing sunshine, the waterproof, weatherproof nylon cover is made to perform flawlessly in all conditions. Additionally the updated fiberglass reinforced back plate has loops for a saddle bag or other accessory.
$120.00
The Cambium C17 All Weather Carved is made for years of hard riding in an angled riding position, and features a hole for pressure relief and additional flex, eliminating contact points which cause discomfort for some riders. With the same contemporary design of the Brooks Cambium range, the All Weather is a durable and comfortable saddle that is “ready to ride”, thanks to a vulcanized natural rubber top for flexible performance requiring no breaking in period. From freezing rain to blazing sunshine, the waterproof, weatherproof nylon cover is made to perform flawlessly in all conditions. Additionally the updated fiberglass reinforced back plate has loops for a saddle bag or other accessory.
$120.00
The Cambium C19 All Weather is a wider saddle made for an upright riding position, for commuting in the city. With the same contemporary design of the Brooks Cambium range, the All Weather is a durable and comfortable saddle that is “ready to ride”, thanks to a vulcanized natural rubber top for flexible performance requiring no breaking in period. From freezing rain to blazing sunshine, the waterproof, weatherproof nylon cover is made to perform flawlessly in all conditions. Additionally the updated fiberglass reinforced back plate has loops for a saddle bag or other accessory.
$120.00
The Cambium C19 All Weather Carved is a wider saddle made for an upright riding position. It features a hole for pressure relief and additional flex, eliminating contact points which cause discomfort for some riders. With the same contemporary design of the Brooks Cambium range, the All Weather is a durable and comfortable saddle that is “ready to ride,” thanks to a vulcanized natural rubber top for flexible performance requiring no breaking in period. From freezing rain to blazing sunshine, the waterproof, weatherproof nylon cover is made to perform flawlessly in all conditions. The updated fiberglass reinforced backplate has loops for a saddle bag or other riding accessories. - Vulcanized natural rubber and nylon top - Steel rails with a reinforced plastic backplate - Length: 275mm - Width: 184mm - Height: 52mm - Weight: 490g
$120.00
Protects your leather saddle from moisture.
$120.00
Origin-8's Track/SS Crankset is made of light and durable forged aluminum. It has a fine machined-aluminum 46-tooth chainring for super-smooth pedaling and comes in a variety of colors to make your bike the coolest ride on the block. - Single speed crankset - Forged AL6061-T6 alloy crankarms - CNC alloy 1/8" 46 tooth chainring - 42mm chainline with 103mm JIS BB
$120.00
The SRAM RED front derailleur, thanks to Yaw technology, changes everything, eliminating the need for shifter trim. Instead of simply moving back and forth, the derailleur cage actually rotates to maintain a consistent angular relationship with the chain. As a result, shifts feel more direct and precise. Combined with the SRAM RED crankset and X-GlideR chainrings, it delivers an unmatched performance advantage in front shifting. - SRAM Road 11-speed compatible - Yaw Technology - Slim spring design eliminates frame interference - Optimized for shifting with X-GlideR chainrings - Precision install markings - Integrated chain spotter protects your frame without adding any extra clunk and adjusts independently of the derailleur itself - Speeds: 2x11 - Material: Aluminum outer cage, Tool steel inner cage, Composite tail - Weight: 69g (braze-on), Chain spotter: 10.2 grams - Outer Cage: Aluminum - Compatibility: SRAM RED 22 & Force 22 Front Shift-Brake levers & X-GlideR Chainrings, SRAM R2C Aero SL-1190 shifters, SRAM R2C Aero SL-1150 shifters, SRAM 900 Aero brake levers, SRAM 500 Aero brake levers - Inner Cage: Tool steel
$120.00
The SRAM Rival 22 Mechanical Shifters are modeled after the phenomenal RED shifters. SRAM not only trickled down 11-speed compatibility, but ErgoFit elements such as a slightly longer brake lever to enhance control, independent reach adjustment for brake and shift levers, and a smaller diameter hood with a taller top shape to increase rider control and improve finger wrap. Because you're able to shift from the hoods, drops, and even when sprinting, the Rival levers offer a competitive advantage that can't be touched. The single-lever-shifting design allows for faster, smoother shifts while being completely independent of the brake levers, eliminating the possibility of engaging the brakes when you shift. Plus, the forged aluminum brake lever and shift paddle offer a beautiful balance of low weight and impressive durability.
$120.00 $166.00 28% Off
The EC34¦EC34 headset is designed to fit frames with straight 34mm/34mm head tubes and straight 1-?” (28.6mm) fork steerers. The “EC” stands for “External Cup” meaning the section of the cup that houses the bearing sits outside of the frame’s head tube and the “34” stands for the 34mm “skirt” that presses into the frame. Features U.S. sourced 6061-T6 aluminum Machine engraved White Industries logos Easily replaceable Enduro bearings “Split” crown race for tool-free installation and removal Headsets / EC34/EC34 For up to date lead times please go here. Thanks! ec34-ec34-main EC34/EC34 $149.80 – $184.40 SKU: HSE3428E3430PP Head Tube 34 Top / 34 Bottom Top Steerer 1-1/8" (28.6mm) Bottom Steerer / Crown Race 1-1/8" (30mm) Color Purple Clear Options Does not include star nut! Star nuts availabe separately on the Headset Parts page. See link below. $184.40 EC34/EC34 quantity 1 ADD TO CART Information This style is often referred to simply as an “1-?” headset which, most of the time, is enough of a description to get you the correct headset. But nowadays with all the different headset standards available we needed to get specific. The EC34¦EC34 headset is designed to fit frames with straight 34mm/34mm head tubes and straight 1-?” (28.6mm) fork steerers. The “EC” stands for “External Cup” meaning the section of the cup that houses the bearing sits outside of the frame’s head tube and the “34” stands for the 34mm “skirt” that presses into the frame. Note: As of 9/14/23, headsets will no longer include Star Nuts due to the Earth’s star nut overpopulation crisis. If you need one, they are available separately here. Features U.S. sourced 6061-T6 aluminum Machine engraved White Industries logos Easily replaceable Enduro bearings “Split” crown race for tool-free installation and removal Really sweet matching headset spacers available separately Compatible with Ritchey carbon 1-1/8? steerer forks with integrated crown races (not tapered steerer forks) Must call to purchase purchase additional bearing part #ACB45451125TSS which replaces the stock bearing and crown race WCS road SKU 34356117005 WCS road SKU 34356117006 WCS Adventure Gravel SKU 34556117012 WCS Gravel Cross SKU 34556117010 Specs SHIS specification Upper: EC34/28.6 Lower: EC34/30 Stack height Upper: 15mm Lower: 12mm Please check compatibility on the White Industries website
$120.00
Zipp's Service Course SL Stem, crafted from 7075 aluminum, features a shape that's strong and lightweight, resulting in a best-in-class 1.85 grams per newton meter of stiffness. That results in no-flex sprints and accelerations. This stem is a favorite of Zipp ambassadors and pro athletes. - Distinctive Zipp cosmetics - Zipp Quickview integrated computer mount available separately - Lifetime warranty
$119.99
3T's Ergonova Pro Handlebar features a wider, flatter top section that provides more surface area for your hands. A tight radius where the brake lever sits and a gradual bend make it easy to reach your levers while in the drops. Its triple-butted aluminum construction is lightweight and strong. Cable grooves on the underside provide a smooth feel when you're on the tops.
$119.99
- Stock for 07-08 Record and Chorus 10-speed compact and standard cranksets - Ultra-Drive ESP alloy chainrings with anti-friction treatment and ramps/pins - *Campagnolo compact rings are Ultra-Torque specific BCD - Color: Grey
$108.99 - $119.99
- Patented carbon cords offer the tensile strength necessary to provide the smooth, greaseless, long-lasting ride advantage of a belt driven system (up to double the life of chains) - Belt is only compatible with Gates CDX CenterTrack cogs and sprockets Sizing - 108T = 1188mm - 111T = 1221mm - 113T = 1243mm - 115T = 1265mm - 118T = 1298mm - 120T = 1320mm - 122T = 1342mm - 125T = 1375mm - 132T = 1452mm - 250T (tandem) = 2000mm
$119.95 - $119.99
Designed for enduro and trail riding, the AMg V2 Alloy chain guide features an upper guide for chain security and an integrated skid to protect the chainring and frame. - Compatible with 1x9, 1x10, and 1x11 drivetrains - Integrated nylon skid glides over rocks - Softer co-molded upper for quiet operation - Installs and adjusts with a single 4mm hex - Compatible with chainlines 49mm and wider - Tracked and grooved upper guide and backplate increases stiffness
$119.99
Shimano's 105 Dual Control Left-Side Lever (Triple) is for use with a triple crankset and a triple front derailleur. Shimano's Dual Control levers let you shift and brake without ever taking your hands off the handlebars. The short-stroke shifting is so telepathic you'll be in the gear you want almost before you realize you shifted. Plus, the robust design offers excellent durability and the hoods are ergonomically contoured for top comfort.
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