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> Parts

Parts

3261 Results
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PowerTap P1 Pedals
$1,199.99

These aren't ordinary pedals. The P1 pedal is a simple, intelligent and uncompromising design that provides the same proven PowerTap accuracy and reliability. The simple one-piece design easily mounts to any crank and does not require calibration nor installation angle setting, providing a true… [more]

Brooks B17 Standard
$129.99

New and seasoned cyclists alike appreciate Brooks' B17 saddle. It's slightly wider and longer than most seats and offers more positions and sublime support and comfort. And, all B17 saddles feature premium leather stretched over a durable chromoly frame and come with seat bag loops, too. [more]

Shimano Ultegra SPD-SL Pedals
$139.99
$199.99

Power transfer begins at the pedals, and Shimano's Ultegra Pedals boast Pro Tour-proven tech to make the most of your riding. Composite bodies are light and extra wide, maximizing your efficiency and reducing power-stealing flex. Stainless steel tread plates improve pedal body durability for miles… [more]

Speedplay Drillium
$109.00

Speedplay's Drillium pedals are the ultimate platform pedals for downhill, slalom and BMX. The huge concave platforms with replaceable pins (20 per pedal) deliver a surefooted grip and incredible power transfer. Plus, the 12mm chromoly axles offer maximum strength. The precision bearings (one… [more]

Shimano PD-M324 Pedals

These versatile pedals feature adjustable Shimano SPD bindings on one side and standard cages on the other: the perfect combination for riders who ride with cleated cycling shoes and also with regular shoes. With sealed bearings and chromoly axles, the M324s are durable and practical all-around… [more]

Speedplay Light Action Chromoly
$115.00

Speedplay's Light Action Chromoly pedals are the easiest Speedplays to get into, so they're the perfect solution for seasoned cyclists with delicate knees, and first-time clipless-pedal users alike. They provide 15-degrees of knee-saving float without the self-centering action inherent in most… [more]

ISM Adamo Road Saddle
$149.99

ISM's Adamo Road Saddle delivers excellent support and comfort for road riding and also racing time trials and/or triathlons in the aero position. This unique seat has a split-nose design with a large cutaway to eliminate pressure and increase your pedaling efficiency. It has generous gel and foam… [more]

Speedplay Zero Chromoly
$125.00

Speedplay's Zero Chromolys are fantastic pedals for road cycling thanks to their low weight, cornering clearance, adjustability and easy dual-sided entry and exit. This means you'll be the first going out of stop signs and start lines and be able to dive into the deepest corners. The Zeros let you… [more]

Avid Elixir 5 Hydraulic Disc Brake

Light enough for XC and powerful enough for freeriders, Avid's Elixir 5 Hydraulic Disc Brake provides sweet control and power. Avid's Taperbore technology and Power Reserve Geometry deliver great modulation and pinpoint stops. Increased power comes courtesy of a super-stiff, 2-piece caliper that… [more]

Bontrager Paradigm R Saddle
$99.99

Bontrager's Paradigm R saddle is a win-win. It's light, supremely comfortable, and actually adds to higher sustained performance. Does that make it a win-win-win? The inForm BioDynamics optimize your natural movement and reduce thigh chafe to make you more efficient. To dial in the fit, Bontrager… [more]

Crank Brothers Mallet DH/Race
$135.00

Whether you're in the heat of a race, or just sessioning your local trails, give yourself an advantage with Crank Brothers' Mallet DH pedals. They rock super easy-to-enter/exit 4-sided cages with wide aluminum platforms for serious support. Steel springs, steel wings and chromoly axles deliver… [more]

Shimano Dura-Ace Di2 Dual Control Electronic Shift/Brake Levers
$749.99

Imagine a world where every shift is immediate, smooth and precise, every gear, every time. Well, that world can be yours with Shimano's Dura-Ace Di2 Dual Control Shift/Brake Levers, a key part of their Dura-Ace Di2 electronic drivetrain. With a simple, light touch of the easily accessed buttons,… [more]

Look Keo 2 Max Carbon

From the company that pioneered clipless pedal technology come the Tour de France-winning Keo 2 Max Carbon pedals. They feature carbon bodies with stainless-steel platforms for low weight, easy entry and exit and exceptional durability. The wide contact area and the low-profile design place you… [more]

Shimano In-Line Brake Cable Adjuster
$18.99

Shimano's In-Line Brake Cable Adjuster with quick release allows you to make changes to your road caliper brake's cable tension or open a brake caliper's arms to remove a wheel. [more]

Problem Solvers Cassette Spacer
$4.99

The Problem Solvers Cassette Spacers are made of light and durable anodized aluminum and come in different thicknesses for correctly spacing various brand and model cassette cogs. Measure and match your spacers to choose the right width. [more]

Shimano Ultegra 10-Speed Cassette
$69.99

Shimano's Ultegra 10-Speed Cassette delivers pro-level shifting and durability. The computer-enhanced tooth shapes and tough cogs mean you can shift quickly, precisely and smoothly even under pressure. [more]

Shimano 105 10-Speed Cassette
$44.99 - $99.99

Shimano's 105 10-Speed Cassette delivers excellent shifting and durability. The cogs are made of long-lasing, smooth-running steel. They have Shimano's engineered tooth shapes for precision shifting. And for lightness, the cassette has an aluminum carrier for the top cogs and nylon spacers. [more]

Shimano Dura-Ace 10-speed Cassette
$219.99 - $249.99

Shimano's Dura-Ace 10-speed Cassette is comprised of an aluminum cog carrier, 4 titanium and 6 steel cogs (from largest to smallest respectively). This makes for a super-light and stiff cassette that makes your derailleur shift like a dream so you can dance up the climbs as easily and efficiently… [more]

Shimano PD-A600 SPD Pedals
$99.99
$139.99

Get the secure feeling of a large surface area with Shimano's PD-A600 SPD Pedals! Wide platforms efficiently transfer power from your shoes to the drivetrain even with SPD shoes, and when you're going uphill, the low weight won't hold you back. For longevity and adjustability, they feature the… [more]

SRAM PG-950 9-Speed Cassette
$37.99 - $39.99

When it's time to replace your 9-speed cassette, check out SRAM's PG-950 cassette. It delivers solid shifting and durability ride in and ride out for your 9-speed rig. [more]

Avid Single Digit 5 Rim Brake
$24.99

Making brakes that slow you down is easy, but making them light, powerful, efficient and adjustable is Avid's specialty. That's exactly what you get with their Single Digit 5 Rim Brake. The reversible noodle lets you use it front or rear, while its low weight won't hold you back on climbs. The… [more]

Bontrager Affinity R WSD Saddle - Women's
$34.99
$69.99

Bontrager's Affinity R WSD is a comfy road saddle ready for long rides. It features a women's-specific CRZ cutout to take pressure off sensitive areas and increase blood flow. The Affinity comes in 3 different widths to perfectly match your sit bones. The saddle's shape and rear curvature are… [more]

Trek International Disc Brake Mount
$14.99

Add a rear disc brake to your 2001 and later Trek, Klein or Gary Fisher bicycle with this International Disc Brake Mount. Please note, disc brake and disc compatible wheel hub sold separately. [more]

Problem Solvers Handlebar Shim
$8.99 - $13.85

The Problem Solvers Handlebar Shim allows you to fit almost any handlebars in almost any stem. It's machined of light and durable aluminum and grooved on the inside to hold tightly. [more]

Speedplay X/5 Chromoly
$115.00

Speedplay's X/5 pedals are lightweight and feature-packed at a great price. They provide knee-saving unlimited float without the self-centering action inherent in most pedals, so your knees don't have to work against spring tension. They also boast needle and dual cartridge bearings for smooth… [more]

Shimano Deore XT Shadow + Rear Derailleur (Long Cage)
$99.99

Shimano's Deore XT Rear Derailleur uses cold-forged construction and cutting edge technology to deliver crisp shifting, real-world reliability, and trademark precision. Plus-type derailleurs use a lever-actuated clutch spring to prevent chain slap, reduce noise while on the trail, and improve chain… [more]

Shimano Click'R PD-T400 Pedals
$69.99

Shimano's Click'R PD-T400 offers easy access to the cycling lifestyle, no matter your experience level. The Click'R pedal system requires 60% less effort than a standard Shimano SPD, so clipping in or out is smooth and effortless. And, adjustable spring tension provides customizable pedal… [more]

Avid Speed Dial 7 Brake Levers
$28.00

Stiff, light and beautiful, Avid's Speed Dial 7 Brake Levers deliver excellent speed control and a great feel for your linear-pull or mechanical-disc brakes. And, they also feature adjustable reach for maximum hand comfort and are made to bend, not break, in the event of a crash. Plus, by turning… [more]

Shimano PD-M9020 XTR Pedals
$124.99
$179.99

• Extremely wide pedal-to-shoe contact area • Wide pedal platform for more pedaling stability • Wider bearing placement for increased rigidity • Increases stability and control when not clipped in • Protects binding mechanism against impacts • Oval shape axle body housing for smoother mud & debris… [more]

Shimano Ultegra Crankset
$309.99 - $324.99

Shimano's Ultegra Compact Crankset boasts hollow-forged-aluminum arms and a hollow aluminum big ring. These technologies combine for impressive weight savings and superb strength. An integrated bottom bracket axle provides super-efficient power transfer, while chainrings with ramps, pins and… [more]

3261 Results
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Chain Reaction Bicycles is your local bicycle shop for the San Francisco Bay Area! Unlike some other shops, we are dedicated 100% to serving the needs of local cyclists; our offerings are exclusively available for in-store pickup. Our "northern" store is located at 1451 El Camino Real, Redwood City CA, 94063. 650 366 7130. Our "southern" store is located in Foothill Crossing Shopping Center, 2310 Homestead, Los Altos CA, 94024. 408 735 8735. Our hours and directions to our stores may be found here. We look forward to taking care of all of your cycling needs, including service! Mike & Steve Jacoubowsky, Partners, Chain Reaction Bicycles. Serving you since 1980!