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PALO ALTO
2011 El Camino Real
Palo Alto, CA 94306
Phone: (650) 853-3000
Open: Mon-Fri 11-7 Sat 10-7 Sun 10-6
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SF
SAN FRANCISCO
1090 Folsom St
San Francisco, CA 94103
On-Site Parking
Phone: (415) 934-8000
Open: Mon-Fri 11-7 Sat 10-7 Sun 10-6
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Derailleurs

$51.00
SRAM's X5 9-Speed Rear Derailleur provides precise, dependable shifting along with long-term durability. Its aluminum construction keeps the weight down, while SRAM's 1:1 actuation ratio and direct cable routing provide quick, reliable shifts.
$161.00
SRAM's Ceramic Bearing Rear Derailleur Pulleys run on super-smooth and efficient ceramic bearings so your drivetrain pedals with ease. They are also lighter than conventional pulleys. These fine pulleys even come with SRAM's ceramic-bearing grease in an easy-to-use 10ml syringe container.
$17.99
• 8-speed compatible • SIS rear index shifting • 43 tooth compatible
$230.00
SRAM's X01 Rear Derailleur packs a massive amount of technology into its compact, lightweight body. This 11-speed gear changer uses a “horizontal parallelogram” design that limits all movement to the horizontal axis, reducing the force it takes to shift. The Type 2 clutch is brilliant. This self-lubricating, one-way roller clutch controls your chain tension to eliminate chain slap and give you smooth, consistent shifts over any terrain. For quicker, smoother, more exact shifting, the large upper pulley's offset design maintains a consistent chain gap across all gears.
$753.00
More than a mechanical derailleur with a battery and a motor bolted on, the Eagle AXS derailleur is the heart of the whole AXS system. It features a shorter cage for 10mm more ground clearance, with more chain wrap on the cassette to sit slightly further forward, and further inboard from mechanical Eagle. Instantaneous shifts from a single touch even while under World Cup-winning chain loads recorded in the heat of racing and affirmed in the test lab. Tested to IP69K water and dust proofing standard so whatever race day brings, you’re ready. - XC focus and trail ready - Carbon cage - Ti hardware - Rainbow colorway - Eagle technology - Overload Clutch protection - AXS enabled componentry software that makes it possible to both program and personalize new SRAM and RockShox components - System is completely water and dust proof to IP69K - Eagle AXS is designed to work with X-DOME Eagle cassettes only, providing the most precise, silent, and reliable shift performance available. - Battery sold separately
$184.99
The Box One Prime 9 Rear Derailleur takes the advantages of our legacy 9-speed drive-train but adds the advancements of a modern 1 by; a fully adjustable Tri-Pack Clutch, and an x-wide cage optimized for an 11-50T cassette. Forged construction steps up the durability and performance to an unparalleled level. Suited for the most demanding terrain.
$79.99
The Box Three Rear Derailleur simplifies the features found on the Prime 9 Box One and Two rear derailleurs making for a fully featured wallet friendly rear derailleur. Including a Limited Slip Clutch, Sealed bearing pulleys and a solid construction Box Three Rear derailleurs are compatible with 11-46 and 11-50t derailleurs making it one of the most versatile derailleur offerings for Prime 9.
$39.99
- 2:1 actuation ratio compatible with most Shimano 3x9sp drivetrains - Aluminum and steel construction with 11-tooth pulleys barrel adjuster
$339.99
On any surface you can imagine, in any drivetrain configuration, the Rival eTap AXS rear derailleur will handle it. Secure chain management and fast, precise shifting make for a smooth and quiet ride, every time. - Wireless electronic eTap shift logic for intuitive shifting, easy setup, and reliability - Compatible with both 1x and 2x drivetrains - 36T cog max derailleur works with 10-28T, 10-30T, 10-33T, and 10-36T cassettes - SRAM AXS-enabled, allowing easy personalization - Spring clutch keeps the drivetrain quiet and secure - X-SYNC pulleys for increased durability and efficiency - 36T max rear cog - Battery Not Included
$257.95
The Record 12-Speed rear derailleur has an innovative shape that envelopes the cassette better, thanks to 3D Embrace technology, creating a double effect: allowing the chain to maintain optimum traction at all times, thus increasing the speed, power and precision of shifting. - Carbon fiber-reinforced construction, to increase strength while keeping weight to a minimum - 12-tooth pulley wheels for smoother chain movement - Optimized to work with cassettes from 11 to 34 teeth Specifications: - Largest Cog: 34 - Rear Derailleur Mount Type: 10x1 Standard - Chain Wrap Capacity (teeth): 37 - Cage Length: Medium - Rear Der/Shifter Compatibility: Campy 12-Speed Chorus/Record/Super Record 2019+ - Drivetrain Speeds: 12
$292.45
The Campagnolo EKAR Rear Derailleur is designed for the 1x13-speed EKARndrivetrain with a gravel-orientated performance & build. - 2D parallelogram trajectory offers precise mechanical movement for 13 sprockets - High grade polymer pulley wheels (12T upper, 14T lower) allow for smooth chain running and secure retention - Carbon fiber-reinforced polyamide and anodized 7075 and 6082 alloys are lightweight, strong, and durable - Stainless steel bolts for strength and long-term resilience on gravel - Includes clutch lock for easy wheel removal Specifications: - Largest Cog: 44 - Rear Derailleur Mount Type: 10x1 Standard - Chain Wrap Capacity (teeth): 34 - Cage Length: Medium - Rear Der/Shifter Compatibility: Campy EKAR - Drivetrain Speeds: 13 - Weight: 275g
$29.99
Full metal construction provides stiffness and durability in this Shimano 9-speed road compatible front derailleur. - Full aluminum construction - Compatible with 9-speed Shimano road drivetrains - Designed for use with 52/42/30T chainrings
$19.99
Enjoy quality and reliability with the Shimano Tourney 6/7-speed rear derailleur. It makes use of Shimano SIS, HyperGlide, and Double Servo technologies for smooth, accurate shifts. - Wheel-type cable guide - Maximum cog size: 34t - Total capacity: 43t
$38.99 - $40.99
Shimano's Deore Front Derailleur delivers smooth shifting and less cadence shock along with top-notch durability. Made for triple-ring set ups, it's 10-speed compatible. You'll get stable performance, even with full suspension MTB, as it shifts properly while the rear suspension handles rough trails and obstacles. - Consistently quiet driving while rear suspension position changes - Custom plate design for single spike gear structure - Chain catcher - Close step (10T) - Efficient cable routing - OPTISLICK cable - Swing Action: side swing - Top Gear Teeth: 40-42T - Chain Line: 50 - Chain Stay Angle: 66-69
$225.00 - $264.99
The SRAM Force 1 rear derailleur adopts all the technologies of SRAM 1x MTB to provide the fastest, quietest 1x shifting available. SRAM’s unique clutch system eliminates chain slack, providing for smoother, quieter, and more secure chain travel. - A dedicated 1x rear derailleur - EXACT ACTUATION for fast and accurate shifts using SRAM’s 1:1 actuation ratio (shifter cable travel: derailleur movement). - 10- and 11-speed compatible - X-SYNC pulley features a 12-tooth design that helps control the chain’s lateral movement - X-HORIZON “straight parallelogram” design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force - ROLLER BEARING CLUTCH’s one-way roller clutch controls chain tension for consistent shifting - Cage Lock technology makes for fast wheel changes or chain installation - Available in Short: 11-26 through 11-28 / Medium: 11-26 through 11-36 / Long 11-32 through 10-42 cage lengths Short Cage: Chain Wrap Capacity (teeth): 18 teeth Largest Cog: 28 Weight: 250 g Medium Cage: Chain Wrap Capacity (teeth): 26 teeth Largest Cog: 36 Weight: 262 g Long Cage: Chain Wrap Capacity (teeth): 32 teeth Largest Cog: 42 Weight: 271 g
$79.99
With an integrated chain stabilizer mechanism, the Shimano GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner. - Adjustable chain stabilizer prevents chain slapping and drops - Switch stabilizer ON/OFF to match the terrain - Gravel-tuned clutch tension - Maximum front T difference: 16T - Silent and uninterrupted rear shifting on rough terrain - Low cog: Max. 36T/Min. 30T - High cog: Max. 11T/Min. 11T - Total capacity: 41T - Smooth and reliable mixed-surface shifting - Compatible with current 10s road DUAL CONTROL LEVER - Compatible with wide-range front gearing
$49.99 - $52.99
Sleek, balanced and consistent. Shimano's Tiagra 4700 series front derailleur provides serious entry-level riding performance with trickle-down technology from the top shelf Dura Ace line. - Model Number: FD-4700 - Series: Tiagra - Cassette Compatibility: 10-speed - Top Gear Teeth: 53T - Maximum Capacity: 16T - Chain Stay Angle: 61-66 - Chain Line: 43.5 - Band Mount: 28.6 / 31.8 (w/AdapterS) 34.9
$87.00
The SRAM NX X-HORIZON rear derailleur provides the same smooth, reliable shifting action as XX1—from the larger upper pulley offset to the 12-tooth X-SYNC pulley wheels. By eliminating unwanted chain movement, X-HORIZON shifts faster, puts an end to ghost shifting and reduces shift force and chain slap. And with Cage Lock technology, wheel removal and installation are easier than ever. - X-HORIZON design that reduces shift force, ghost shifting and chain slap - 12-tooth X-SYNC pulley wheels - Fully compatible with all SRAM MTB 1x drivetrains - Most affordable fully featured 1x rear derailleur in the industry - Speeds: 11-speed - Weight: 322 grams - Color: Black - Compatibility: X-ACTUATION - Bearings: Steel - Cage Size: Long - Max Tooth: 42
$129.99
The SRAM Rival 1 rear derailleur is engineered for smooth, reliable shifting action, delivering 100% of what you demand. By eliminating unwanted chain movement, X-HORIZON shifts faster, reducing shift effort and chain slap. - X-HORIZON design reduces shift force while eliminating ghost shifting and chain slap - Large upper pulley offset automatically adjusts chain gap - Sealed cartridge bearings and aluminum cage - Technologies: X-HORIZON, EXACT ACTUATION, X-SYNC, ROLLER BEARING CLUTCH, Cage Lock - Medium cage: 11-26 through 11-36 cassettes, 269g - Long cage: 10-42 cassette, 275 g
$44.99
Replacement pulley set with ceramic bearings. Compatible with 7,8,9, and 10-speed Campagnolo, Shimano, and SRAM drivetrains.
$61.00
Incredibly fast, astonishingly quiet, and impressively precise—fly through all 11 gears with SRAM's Rival 22 Rear Derailleur. It takes advantage of SRAM's Exact Actuation technology for precision shifts every time. Carefully shaped jockey wheels work together with the sculpted chain pulley cage for lightning-fast, ultra-precise shifts, and an elastomer coating applied to the jockey wheels makes for extra quiet operation. Aluminum inner and outer cages, aluminum links, and stainless steel hardware keep the durable Rival 22 at a svelte 180 grams.
$165.00
The EX1 derailleur capitalizes on the robust build and precise shifting attributes of the X-HORIZON design, to create the world’s first derailleur specifically made for E-MTBs. Engineered to handle high-torque, low-cadence shifting across the 11-48 tooth E-Block cassette, the EX1 derailleur gives E-MTB riders clean, confident shifts, so they can spend more time enjoying the ride. - Proven SRAM X-HORIZON design that reduces shift force, ghost shifting and chain slap - 12-tooth X-SYNC pulley wheels - The EX1 derailleur is purpose built for E-MTB - Speeds: 1 x 8-speed - Weight: 289 grams - Color: Black - Outer Cage: Aluminum - Inner Cage: Aluminum - Bearings: Steel - Cage Size: Medium - Max Tooth: 48
$313.00 - $333.00
It takes a degree of passion for the sport that can’t be faked to fully appreciate SRAM RED. It was created to blur the boundaries between machine and athlete. The SRAM RED rear derailleur was designed with Exact Actuation technology for precise, efficient shifting. Carbon fiber, titanium, and ceramic bearings complete the spec. The result adds to its legacy as the heart of the purest groupset for the pursuit of cycling excellence. - SRAM 11-speed compatible - WiFLi option - Carbon cages, carbon inner links, titanium hardware - Exact Actuation shifting provides fast and accurate shifts - Silent shifting with optimized AeroGlide pulleys, ceramic bearings - Spring-fixed barrel adjuster - Chain pulley cage adds precise chain management - Titanium pinch bolt keeps a low profile while minimizing weight - Speeds: 11 - Material: Carbon cages, Carbon inner links, Aero designed titanium hardware - Weight: 145 grams short cage), 165 grams (mid cage) - Compatibility: SRAM RED & Force Rear Shift-Brake levers, SRAM R2C Aero SL-1190 shifters, - SRAM R2C Aero SL-1150 shifters, SRAM 900 Aero brake levers, SRAM 500 Aero brake levers - Finish: Falcon grey & black anodized - Tech Highlights: AeroGlide Pulleys, Exact Actuation - Largest Cog (teeth): 28 (short cage) 32 (WiFli Medium Cage)
$7.79
- Bulk packed and poly bagged - Speeds: 5/6/7 - Max Tooth: 48 - Wrap: 20 - Swing: Bottom
$49.99
- Model Number: RD-R3000-GS - Series: SORA - Maximum Sprocket: 34T - Minimum Sprocket: 11T - Maximum Front Difference: 20T - Total Capacity: 43T
$109.00
Incredibly fast, buttery smooth and impressively precise gear changes are here with SRAM's Force Rear Derailleur. It takes advantage of SRAM's Exact Actuation technology for precision shifts every time. Plus, the Force is crafted with cutting-edge materials, such as a super-light carbon cage and a magnesium inner link for feathery low weight, flawless shifting and reliability.
$144.99
The Shimano Deore XT RD-M8100/M8120 rear derailleur is designed to provide smooth and stable shifting for 12-speed MTB drivetrains. - Offers fast and shockless shifting - The low-profile design includes a bumper added to the derailleur pulley cage - Shimano Shadow RD+ technology reduces chain slap and creates a quieter drivetrain - Includes large, 13T pulley - Long cage is designed to be used with 1x12 drivetrain systems - Rear Derailleur Mount Type: Shimano Rear Direct Mount, 10x1 Standard - Drivetrain Speeds: 12 - Cage Length: Long - Chain Wrap Capacity (teeth): 41 teeth - Largest Cog: 51 - Weight: 284 g - Rear Der/Shifter Compatibility: Shimano Mountain
$89.99
This new SX Eagle derailleur is your entry point to the SRAM Eagle Ecosystem. Sharing many features with the rest of the Eagle Ecosystem like the proven SRAM 1x-specific X-HORIZON body design, it can accommodate both 11-50T and 10-50T cassettes. The SX Eagle is cross compatible with much of the Eagle Ecosystem, making it easy to personalize and upgrade your ride when you are ready. - A full featured Eagle derailleur, compatible with the Eagle Colorsystem - X-SYNC pulley technology provides greater efficiency, crisper shifting, and quieter operation - Cage Lock offers discovery-level riders easy wheel removal - 50T max rear cog - Battery Not Included
$31.99 - $39.99
Shimano's Claris rear derailleur is a perfect replacement part or upgrade for 8-speed road drivetrains. HyperGlide technology results in smoother, faster shifting. - Maximum cog size: 32t (SS) / 34t (GS) - Total capacity: 37t (SS) / 43t (GS) - Pulleys: 11t - Chain compatibility: HG 8-speed
$29.99
- 11-34T - Weight—354g