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Derailleurs

Campagnolo Chorus 11 Medium Cage Rear Derailleur
$349.99
Chorus 11-speed's shifting precision is comparable to its older siblings Record and Super Record. The design and geometry of the rear derailleur are exactly the same. The only difference lies in the materials used, which made it possible to keep a favorable price without lowering the performance levels. A groupset dedicated to competition like the Chorus 11-speed can't forego showing its true competitive spirit, and the carbon fibre front plate is the proof. - Carbon fiber front plate and cage and alloy fixing bolts - Campagnolo Ultra-Shift parallelogram maximizes stiffness, shifting speed and precision - Special lightweight rubber pulleys reduce friction and noise - Compatible with Potenza and model year 2015 and newer Chorus, Record and Super Record - Not compatible with pre 2015 Campagnolo drivetrains - Pulley rollers on bushings in sintered material - Drivetrain Speeds: 11 - Cage Length: Medium - Chain Wrap Capacity (teeth): 37 teeth - Largest Cog: 32
SRAM Chain Spotter
$48.99
SRAM's Chain Spotter fits on your seat tube beneath your front derailleur to keep the chain from coming off, which keeps you riding and prevents chain and frame damage, too. It's made of lightweight aluminum and includes all mounting hardware. Just bolt it on and go. No front derailleur fine-tuning needed.
Third Eye Chainwatcher
$14.99
- Prevents chain derailment when shifting to inner ring - Adjustable hose-type clamp fits 1-1/8" to 1-3/8" seat tubes
Shimano Tiagra Front Derailleur
$46.99 - $47.99
Sleek, balanced and consistent. Shimano's Tiagra 4700 series front derailleur provides serious entry-level riding performance with tricke-down technology from the top shelf Dura Ace line. - Model Number: FD-4700 - Series: Taigra - 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
Shimano Tiagra Triple Front Derailleur
$48.99 - $50.99
Shimano's Tiagra Front Derailleur (3x10-speed) is sleek, balanced and consistent. The Tiagra 4700 series provides serious entry-level riding performance with cascaded technology from the top shelf Dura Ace line. - Model Number: FD-4703 - Series: Tiagra - Cassette Compatibility: 10 - Top Gear Teeth: 50T - Maximum Capacity: 20T - Chain Stay Angle: 63-66 - Chain Line: 45 - Band Mount: 28.6mm / 31.8mm (w/AdapterS) 34.9mm
SRAM NX 1x11 X-Horizon Rear Derailleur
$104.99
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
SRAM RED eTap Rear Derailleur
$725.99 - $756.99
The SRAM RED eTap rear derailleur executes shifts the instant you demand it, with military precision. Wirelessly. It’s easy to set up, clean in appearance and delightfully uncomplicated. Mechanical necessities such as a carbon pulley cage, ceramic pulley bearings, and anodized alloy artfully blend with proprietary electronic advancements to deliver a shifting wonder. - Compatible with SRAM RED eTap shift/brake controls - Max tooth size: short-cage - 28T; mid (WiFLi) cage - 32t - SRAM RED eTap shifting logic - Wireless connection via AIREA network for fast and clean installation - Exact Actuation provides precise gear selections - Designed to work with SRAM PowerGlide and PowerdomeX cassettes - Speeds: 11-speed - Weight: 239 grams (short cage with battery) - Outer Cage: Carbon - Compatibility: SRAM RED eTap, PowerdomeX & PowerGlide Cassette - Inner Cage: Carbon - Finish: Black - Pulleys: Ceramic - Pull: Exact Actuation
Shimano SLX Side Swing Front Derailleur
$43.99 - $44.99
- Enhanced Stability, Maneuverability And Shifting Efficiency - New Side Swing Design For Large Wheel Bikes - Efficient Cable Routing For Light Shift Operation - Sophisticated Chain Guide For 2X11-Speed Fcw New Spike Construction Gears - Versatile Specification Compatible With Traditional Mounting Options - Wider Clearance For Large Wheels - Compatible With Shorter Chain Stays - 50% More Shifting Power (Outward) (Vs. Current Xt, Fd-M7020 Only) - Increased Traction Range For Long-Travel And Active Rear Suspension - Series: SLX - Swing Action: Side Swing - Top Gear Teeth: 34-38T - Chain Line: 48.8 - Chain Stay Angle: 66-69 - Average Weight: 136g - Clamp diameter: 34.9 w/included shims
Shimano Deore M6020 Double Front Derailleur
$43.99 - $44.99
Features: - Smooth shifting and less cadence shock - Close step (10T) - SIDE SWING construction - Efficient cable routing - OPTISLICK cable - Stable performance on suspension bikes - Shifts properly while 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 - 2x10-speed
Shimano SLX M7000-GS Rear Derailleur Cage Plate
$17.99
- Replacement plate for M7000-GS rear derailleur - Choose Inner or Outer
Shimano Alivio T4000 Triple Front Derailleur
$31.99 - $32.99
Shimano's Alivio FD-T4000 Front Derailleur shifts your 3x9-speed setup beautifully. - Drivetrain Speeds: 9 - Double or Triple: Triple - Shifter Compatibility: Shimano Mountain - Front Derailleur Cable Pull: Dual - Front Derailleur Clamp: 28.6mm (1-1/8") , 31.8mm (1-1/4") , 34.9mm (1-3/8") - Function: Top Swing - Max Ring Size: 48T
Shimano Claris RD-R2000 Rear Derailleur
$30.99 - $33.99
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
Campagnolo Record 12 Speed Front Derailleur
$152.99
The new mechanical Record 12x2 Speed derailleur: speed, dexterity, precision, and effectiveness. The Campy Tech Lab designers focused on functionality, performance, and compatibility when redesigning the new front derailleur. The new Record mechanical 12x2 Speed derailleur reveals various technical innovations; starting with the leverage system, which is designed to speed-up shifting. Less effort is required for shifting thanks to the split front link rod, which avoids contact with the travel limit screw, and the shape of the inner cage plate, designed to match the new 12-speed chain’s characteristics. The micro-adjustments to the front derailleur position (which can be activated by the controls) make it possible to avoid any chain contact, even in cases of maximum crossing. The plate positioned on the aluminum outer cage prevents the chain from escaping when upshifting and increases speed in the downshift phase, as well as creating a quieter transmission. As far as compatibility is concerned, the new Record 12x2 Speed front derailleur allows tires up to 32mm thanks to the new upper connecting rod and the double fixing of the cable.
Campagnolo Record 12 Speed Rear Derailleur
$322.99
New mechanical Record 12 Speed rear derailleur: precision, lightness, and versatility. Designed to improve performance and function in every aspect, the new Record 12 Speed mechanical rear derailleur has an innovative shape that envelopes the sprockets 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; and ensuring that the derailleur is always kept an optimal distance away from the sprockets. The cage has also been optimized to work with sprockets from 11 to 32 teeth, allowing a single version to be maintained for all available sprocket sets. The upper part of the new Record 12 Speed mechanical rear derailleur gearbox is made of carbon fiber-reinforced technopolymer, contributing to its robustness and lightness, while the stop adjustment screws at the back of the rear derailleur make adjustments very simple.
Shimano Ultegra RD-X800 Rear Derailleur
$151.99
Ultegra RX brings Shimano's pioneering chain stabilizing technology to road cycling, delivering smooth and precise shifting over technical terrain. It expands road bike capabilities, inspiring confidence on any surface and drives the evolution of road cycling to include greater elements of adventure. No longer is the road bike narrowly defined. Shimano Ultegra RX broadens the notion of drop bar riding and emboldens cyclist to explore further. - Chain Stabilizer mechanism adopted from MTB design - Stabilizer ON/OFF switch - Compatible with current road dual control lever - Shadow RD technology - Direct mount compatible - Maximum cog size: 34t - Total capacity: 39t
Shimano XT M8100 Side Swing Front Derailleur
$60.99 - $63.99
The Shimano Deore XT FD-M8100 front derailleur offers powerful and stable front shifting for 2 x 12 systems. - Increased traction range and no chain rub for long travel bikes - Extra wide range with front double 36-26T - Compatible with 2.3-inch tire on wider rims - Drivetrain Speeds: 12 - Front Der/Shifter Compatibility: Shimano Mountain - Front Derailleur Cable Pull: Front Pull - Front Derailleur Clamp: 34.9 (1-3/8") , 31.8 (1-1/4") , 28.6 (1-1/8") - Front Derailleur Style: Side Swing - Max Ring (teeth): 38
SRAM Force eTap AXS Front Derailleur
$433.99
The SRAM Force eTap AXS front derailleur is AXS enabled for easy personalization. The redesigned derailleur offers better rear-tire clearance—for those that explore all roads—and works perfectly with all chainring combinations. No compromises; never miss a shift. - AXS enabled for easy personalization - Elegant and streamlined form for more rear-tire clearance - SRAM Yaw trimless cage technology with an optimized cage profile for new chainring combinations - Compatible with existing eTap batteries
SRAM RED eTap AXS Rear Derailleur
$855.99
The heart of the connected cadre. The SRAM RED eTap AXS rear derailleur is AXS enabled for easy personalization and designed for both 1x and 2x systems. Advanced chain management keeps it silent and secure no matter the terrain. The derailleur also comes with faster pulleys, bearings, motors and signals, improving speed in every way. - SRAM AXS enabled for easy personalization - Orbit chain management technology keeps drivetrain quiet and secure - A single rear derailleur for all gearing combinations, including 1x and 2x - Improved motor and signal travel for faster shifting - Larger X-SYNC pulleys and ceramic bearings for increased durability and efficiency - Compatible with existing eTap batteries - Battery sold separately
Shimano Deore XT Shadow Rear Derailleur (Long Cage) (Top-Normal)
$72.99 $129.99 44% Off
Shimano's Deore XT Shadow Rear Derailleur is perfect for today's aggressive, all-mountain riding. The radical design means that the Shadow is super-low profile; it barely protrudes more than the quick release nut. Direct cable routing reduces the chance of the cable snagging on roots and rocks and fires off shifts super quick. A stronger spring keeps the body more stable when blasting through technical terrain at speed and yields a firm, crisp shifting feel. Plus, the redesigned bracket axle keeps the derailleur body from contacting your chainstay and reduces chatter so you just concentrate on the best line.
Shimano Dura-Ace Di2 Braze-On Front Derailleur
$338.99
Grab ahold of Shimano's Dura-Ace Di2 Front Derailleur and say hello to near-telepathic shifting. This futuristic front derailleur monitors the position of both derailleurs and trims automatically, ensuring that you have proper derailleur position and no chain rub, no matter what chainring and cog combination you may find yourself in. This is also the fastest and most accurately shifting front derailleur Shimano has ever made, getting you into the big ring more reliably and with greater speed. The derailleur uses Shimano's E-Tube wiring system for waterproof connections and simple, clean setup, and the lack of cables and housing increases service life and reliability.
Shimano Ultegra Front Derailleur
$42.99
Shimano's groundbreaking 6800-series front derailleur delivers a shorter stroke at the lever and substantially lighter action for lightning fast shifts with just a flick of your finger. The redesigned pull arm offers more direct tactile feedback during shifts. The derailleur support bolt creates more solid contact to the frame, stiffening the derailleur and stabilizing it for faster, smoother shifts.
Shimano XTR RD-M9100 Rear Derailleur
$350.99
The RD-M9100 XTR rear derailleur is intended for use with 1x drivetrains. It is compatible with both 11- and 12-speed cassettes. - Decreased rear derailleur tension at low gear position, to prevent high chain tension - Added bumper at rear derailleur pulley cage - Bigger 13T pulley - Direct mount compatible - Compatible cassette size: 10-45 / 10-51 (12-speed), 10-45 (11-speed) - Total capacity: 35t (GS Medium Cage) / 41t (SGS Long Cage)
Shimano XTR RD-M9120 Rear Derailleur
$350.99
The RD-M9210 XTR rear derailleur is intended for use with 2x drivetrains. It is compatible with both 11- and 12-speed cassettes. - Decreased rear derailleur tension at low gear position, to prevent high chain tension - Add bumper at rear derailleur pulley cage - Bigger 13T pulley - Direct mount compatible - Cassette size: 10-45t - Total capacity: 41t
Shimano Ultegra RD-X805 Di2 Rear Derailleur
$389.99
Ultegra RX brings Shimano's pioneering chain stabilizing technology to road cycling, delivering smooth and precise shifting over technical terrain. It expands road bike capabilities, inspiring confidence on any surface and drives the evolution of road cycling to include greater elements of adventure. No longer is the road bike narrowly defined. Shimano Ultegra RX broadens the notion of drop bar riding and emboldens cyclist to explore further. - Chain Stabilizer mechanism adopted from MTB design - Stabilizer ON/OFF switch - Compatible with current road dual control lever - Shadow RD technology - Direct mount compatible - Maximum cog size: 34t - Total capacity: 39t
Shimano Acera RD-T3000 Rear Derailleur
$39.99
Shimano's Acera rear derailleur makes use of advanced designs that make it shift better and last longer. HyperGlide technology results in faster shifting, and Double Servo technology utilizes a double servo-panta mechanism that enables the rear derailleur to track perfectly to each shift and maintain an optimum distance from each sprocket. - Maximum cog size: 34t - Total capacity: 45t - Pulleys: 11t - Chain compatibility: HG 9-speed
Shimano Claris FD-R2000 Front Derailleur
$27.99
Claris R2000 series offers reliable functionality at a price point for new riders. Designed for easy rides around town with the durability to handle a long tour, Claris R2000 has a sporty design and promises the opportunity of comfortable and casual riding.
Shimano XTR FD-9100 Side Swing Front Derailleur
$157.99 - $159.99
Shimano Side Swing front derailleurs feature improved cable routing for smooth and efficient front shifting effort and increased clearance for larger tires and shorter chainstays. - Optimal front system for internal cable routing - Enhanced maneuverability with plus-sized tires - Increased shifting efficiency and light and smooth operation force - D, E, M type mounts are available - M type mount requires 34.9mm adapter
Shimano XT M8100 Rear Derailleur for 2x Drivetrains
$146.99
The Shimano Deore XT RD-M8100/M8120 rear derailleur is designed to provide smooth and stable shifting for 2 x 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 2 x 12 drivetrain systems - Rear Derailleur Mount Type: Shimano Rear Direct Mount - Drivetrain Speeds: 12 - Cage Length: Long - Chain Wrap Capacity (teeth): 45 teeth - Largest Cog: 45 - Weight: 284 g - Rear Der/Shifter Compatibility: Shimano Mountain
SRAM GX 2x11 Front Derailleur (High-clamp, Top-pull)
$63.99
SRAM's low-profile GX 2x11 front derailleur was designed specifically for SRAM GX 2x11-speed shifting systems. When paired with SRAM's wide-range 11-speed cassette and a GX 2x11 rear derailleur, the GX 2x11 front derailleur provides one of the widest gear ranges possible so no terrain is off limits. • 2x11-speed • Max ring (teeth): 38-tooth • Weight: 150 grams
SRAM Apex Clamp-On Front Derailleur
$65.99
For smooth downshifts and fast upshifts, SRAM's Apex Front Derailleur is engineered for success. Its aluminum body is light as a feather while its steel cage is stiff for precision shifts everytime. The Apex Front Derailleur shifts great on standard and compact cranksets, too.