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Derailleurs

Shimano Dura-Ace RD-R9250 Di2 Rear Derailleur 12-speed
$814.99
The Shimano Dura-Ace RD-R9250 rear derailleur integrates the system charging port and a wireless connectivity unit all while delivering super fast, precise shifting worth of any podium. A single cage length shifts cassettes from 11-28 to 11-34, offering exceptional versatility. - Ultra-fast rear Di2 shifting - Compact design includes an integrated wireless unit, charger, switch - Wider range capacity - Max. low sprocket: 34T - CFRP rear derailleur plate - LED status indicator - Battery indicator, pairing, adjust mode etc.
SRAM RED eTap AXS Rear Derailleur
$764.00
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
SRAM XX1 Eagle AXS Rear Derailleur
$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
Campagnolo Super Record EPS Braze-On Front Derailleur
$735.00
Campagnolo's Super Record EPS Braze-On Front Derailleur delivers electronic precision to your front shifts. Hammer into the big ring and surge forward with a mere touch of a button, under heavy load or out of the saddle it's still as smooth as a dream. An aluminum internal cage plate and external carbon cage is powered by a servo motor to provide the incredibly quick shifting. It's versatile too, working with both standard and compact cranksets and auto-trimming to eliminate chain rub. - Drivetrain speeds: 11 - Derailleur capacity: 16T - Max ring (teeth): 55T - Double or triple: Double - Waterproof to 1 meter for 30 minutes (IP67 rated) - Weight: 127g
SRAM RED eTap Rear Derailleur
$698.00
The SRAM RED eTap rear derailleur executes shifts the instant you demand, 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. - SRAM eTap shift logic and wireless operation - Fits all 11-speed SRAM road cassettes up to 11-32T - 2x and 1x compatible - Updated version of the original SRAM RED eTap rear derailleur - Orbit chain management technology keeps drivetrain quiet and secure - Larger X-SYNC pulleys and ceramic bearings for increased durability and efficiency - Compatible with existing eTap batteries
Shimano Dura-Ace 9150 Di2 11-Speed Rear Derailleur
$696.99
- Ergonomic Shifting Operation Without Stress - Shimano Synchronized Shift - Low Profile Rear Derailleur Design - Shimano Shadow Rd - Race Endurance For Less Damage In Crush - Maintains Compact And Smooth Appearance - Maximum Sprocket: 30T - Minimum Sprocket: 11T - Maximum Front Difference: 16T - Total Capacity: 35T
Campagnolo Super Record 12-Speed Rear Derailleur
$481.95
The Super Record 12-Speed rear derailleur combines the highest quality materials for exceptional weight and unparalleled performance. The unidirectional carbon fiber front rocker arm reduces weight, with 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 - Optimized spring return for constant chain tension - Adjustment of the initial rear derailleur position - Removable pivot on the upper body - 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
Shimano Dura-Ace FD-R9250 Di2 Front Derailleur 2x12-speed
$449.99
Despite its smaller, lighter design, the Shimano Dura-Ace FD-R9250 offers ultra-fast front shifting. - Fast Di2 shifting performance - Smaller, sleeker, lighter - Frontal area is smaller than previous designs to reduce aerodynamic drag - Top gear teeth capacity: 50-55t - 61-66 degree chainstay angle - Includes 1 SD300 port
SRAM RED eTap AXS Front Derailleur
$430.00
The SRAM RED eTap AXS front derailleur leverages our advancements with X-Range gearing. The derailleur design carves out space for wide rear-tire clearance, making it a perfect fit for modern riding. And the shifting is quick and precise. - 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 SRAM RED front chainring combinations - The most responsive, quick, and precise front shifting to date - Compatible with existing eTap batteries - Speeds: 2x12 - Front derailleur compatibility: Road-Yaw - Chainstay Angle: 61-66 degrees
Shimano Dura-Ace 9150 Di2 Braze-On Front Derailleur
$429.99
- Ergonomic Shifting Operation Without Stress - Shimano Synchronized Shift - Race Endurance For Less Damage In Crush - Quick And Smooth Front Shifting "Under" High Pedaling Torque - Maintains Compact And Smooth Appearance - Top Gear Teeth: 46-55T - Chain Stay Angle: 61-66° - Chain Line: 43.5mm
Shimano Ultegra RD-R8150 Di2 Rear Derailleur 12-Speed
$419.99
With the fast and accurate Di2 shifting technology, the Shimano 12-speed Ultegra RD-R8150 rear derailleur is extremely versatile thanks to a single cage length option compatible with 11-28, 11-30, and 11-34 cassettes. - Compact design includes an integrated wireless unit, charger, switch - Wider range capacity - Max. low sprocket 34t - LED status indicator - Battery indicator, pairing, adjust mode etc.
Shimano Shimano XTR RD-M972 'Shadow' Rear Derailleur
$319.99
The Shimano XTR RD-M972 'Shadow' specific rear derailleur features a lower profile body with direct cable routing, stronger spring, and redesigned bracket to avoid chainstay contact. It also has a wide link parallelogram design which allows for more rigidity and more precise shifting. It features: Designed for 11-32 and 11-34 cassettes only. Carbon cage and aluminum B-attachment with a Top-Normal return spring (ideal for RapidFire Shifters) Wide link parallelogram design increases rigidity and service life P-body rubber bumper reduces noise and adds durability 4 flourine coated link pivot bushings minimize friction Aluminum construction with sealed bearing 11 tooth pulleys to reduce wear by alternating tooth contact Speed: 9 speed Min/Max rear cog: 11/34T Capacity: o 33T (GS Medium Cage) o 45T (SGS Long Cage) Weight: o 180 grams (GS Medium Cage) o 185 grams (SGS Long Cage)
Shimano Ultegra R8050 Di2 Shadow Rear Derailleur
$286.99
Shimano Ultegra Di2 Shadow rear derailleur. - Sleek integrated appearance - New low-profile design - Shimano Shadow RD - Race endurance - Optimized slant angle - Maintain race concentration with more intuitive shift control - System communication with front derailleur - Shimano Synchronized Shift - Wide compatibility - Short cage covers: 11-25T to 11-30T - Medium cage covers: 11-28T to 11-34T - Average Weight: 242 grams (SS type), 249 grams (GS type)
Shimano Ultegra FD-R8150 Di2 Front Derailleur 2x12-speed
$259.99
Combining Shimano's Di2 platform and the road incarnation of Hyperglide+, the Ultegra FD-R8150 front derailleur shifts between chainrings with the fast and seamless action. - Small, sleek and lightweight front derailleur - Frontal area is smaller than previous designs to reduce aerodynamic drag - Top gear teeth capacity: 50-54t - 61-66 degree chainstay angle - Includes 1 SD300 port
SRAM Force eTap AXS Wide
$243.00
Designed specifically for wide-spaced cranksets with 43/30T chainrings, the SRAM Force eTap AXS wide front derailleur provides consistent, smooth shifting performance for drivetrains with lower gearing. Its wider position on the bike also accommodates fatter tires for venturing far beyond the well-beaten path. - For wide cranksets with 43/30T chainrings - Clearance for 700c x 45 and 27.5 x 2.1" tires - Compatible with any frame designed for 2x drivetrains - Crisp and accurate front shifts - AXS-enabled for easy personalization - SRAM Yaw trimless cage technology with an optimized cage profile for new chainring combinations - Compatible with existing eTap batteries
Shimano Deore XT 8070 Di2 Front Derailleur w/o Bracket
$239.99
Shimano XT FD-M8070 Di2 Front Derailleurs - Accurate and stable shifting in any condition - Instant response - Customized shift speed within Multi-shift - Powerful shifting - Increased power vs. mechanical - Smart and efficient gear selection with Shimano Synchro Shift - Single lever operation - Rider-programmable shift mapping - Series : Shimano Deore XT - Swing Action: Down Swing - Top Gear Teeth: 38-34T - Chain Line: 48.8 - Chain Stay Angle: 66-69 - Average Weight: 134 grams
Shimano Ultegra R8050 Di2 Front Derailleur
$239.99
Shimano Ultegra R8050 Di2 front derailleur. - Quick and smooth front shifting under high pedaling torque - Programmed control of chain guide - Shimano Synchronized shift - Full and semi synchronized shifting program - Redesigned to fit wider gear pitch without sacrificing shifting - Shorter length of rear center (410mm) with O.L.D. 135mm - System communication with rear derailleur, Programmed control of chainguide works for minimal chance of chain drop - Top Gear Teeth: 46-53T - Chain Stay Angle: 61-66 - Chain Line: 43.5 - Average Weight: 132 grams
Campagnolo Super Record 12 Speed Front Derailleur
$203.45
The new Super Record 12x2 Speed mechanical front derailleur: lightness, design, fluidity, and effectiveness. The new Super Record 12x2 Speed mechanical front derailleur introduces many new techniques, starting with the leverage systems designed to speed up derailings. Less effort is needed to shift owing to the split front connecting rod, which prevents contact with the travel limit screw. Whilst the shape of the inner cage plate is engineered to guarantee maximum readiness for upshifting, the external monolith body in carbon fiber has been shaped to enhance the efficiency of the chain movement when going uphill and the readiness and fluidity in descent. The aesthetic impact of the component is consistent with the rest of the Super Record groupset due to the use of unidirectional carbon fiber and titanium stop screws. Micro-adjustments to the front derailleur position, which can be activated by the controls, help to prevent any contact with the chain, even in the case of maximum crossover. As regards compatibility, the new Super Record 12x2 Speed front derailleur allows the use of hoods measuring up to 32 mm thanks to the new upper connector rod and the double fixing position of the control cable.
SRAM Rival eTap AXS Wide Front Derailleur
$185.00
The Rival eTap AXS wide front derailleur is optimized for smaller X-Range chainrings on wide cranks and uses Yaw technology so there's no need for trim. Its wider position on the bike also provides clearance for extra wide tires, so you can venture far beyond the beaten path. - Wireless electronic eTap shift logic for intuitive shifting, easy setup, and reliability - For wide cranksets with 43/30T chainrings - Additional clearance for 700x45c and 27.5x2.1" tires - Crisp and accurate front shifts - AXS enabled for easy personalization - Battery Not Included
BOX One Prime 9 X-Wide Rear Derailleur
$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.
SRAM NX Eagle Rear Derailleur
$169.99
This new NX Eagle derailleur features the proven SRAM 1x-specific X-HORIZON design. The larger, 14-tooth X-SYNC lower pulley easily facilitates 11- to 50- and 10- to 50-tooth cassette capacity, and also adds to NX Eagle's overall smooth-pedaling feel. The Type-3 ROLLER BEARING CLUTCH provides quiet, consistent performance and durability. - Eagle technology provides an expanded, optimum, gear range making you fast on the flats, giving you control on the climbs and unleashing your speed on the descents - Eagle is a complete drivetrain system that was developed to be an integrated high-performance ecosystem. The engineering and testing that went into the development provide for maximum performance, safety, and long-term durability to ensure a great consumer ride experience. We guarantee this performance when Eagle drivetrains are used as a complete ecosystem. For additional information, please contact your SRAM Sales Contact. - Completely new rear derailleur incorporating our proven X-HORIZON design and new Type-3 ROLLER BEARING CLUTCH technology - Eagle ecosystem-engineered mounting system and CAGE LOCK positioning add robustness - Eagle pulley technology provides greater efficiency, crisper shifting and quieter operation - Speed (RD): 12s - Cable pull ratio: X-actuation - Cage (RD): Long - Max tooth: 50 - Color (RD): Black - Pulley bearings material: Steel - Cage material (RD): Steel
SRAM Red Clamp-On Front Derailleur
$159.99
SRAM's Red Front Derailleur takes precision shifting to new levels. Upshifting, downshifting and trimming are fast, easy and smooth as silk across the entire gear range with SRAM's proven actuation design. Plus, the hardened-titanium cage is ultra strong for awesome reliability and it's feathery light, too! And, thanks to easily accessed limit screws and compatibility with both standard and compact cranksets, your shifting will be more dialed than ever before!
Shimano Ultegra R8000 Shadow Rear Derailleur
$96.99 - $159.99
Shimano Ultegra R8000 Shadow rear derailleur. - Sleek integrated appearance - Low-profile design - Race endurance - Optimized slant angle - Wide compatibility - Short cage covers: 11-25T to 11-30T - Medium cage covers: 11-28T to 11-34T - Model Number: RD-R8000 - Series: Ultegra - Maximum Sprocket: 30T - Minimum Sprocket: 11T - Maximum Front Difference: 16T - Average Weight: 200 grams (short cage type), 210 grams (medium cage type)
FSA Ceramic Bearing Pulleys
$149.99
- Upgrade rear derailleur pulleys with ceramic sealed cartridge bearings - Ceramic bearings are proven harder and smoother than standard bearings - PTFE/composite pulley material for long life and low friction - Shimano version works for Road or MTB. - Sold as pair - 9g each
BOX Two Prime 9 X-Wide Rear Derailleur
$134.99
The Box Two Prime 9 Rear Derailleur is very similar to the Box One version however, to be more wallet friendly, it offers a non adjustable Tri-Pack Clutch, bushing pulleys and some muted finishes. Box Two rear derailleurs are still optimized for 11-50t cassettes and offer durability and performance for the most demanding terrain, just at lower price!
Shimano XTR FD-9100 Side Swing Front Derailleur
$124.99
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 GRX RX810 11-Speed Rear Derailleur
$117.99
With an integrated chain stabilizer mechanism, the Shimano GRX derailleur provides a quieter experience while delivering shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features an ON/OFF switch for the chain stabilizer. The RD-RX810 rear derailleur is compatible with road cassettes with a max cog size of 34T. - Adjustable, gravel-tuned chain stabilizer prevents chain slapping and drops - Switch stabilizer ON/OFF to match the terrain - Silent and uninterrupted rear shifting on rough terrain - Low cog: Max. 34T/Min. 30T - High cog: Max. 11T/Min. 11T - Total capacity: 40T - Compatible with current road Dual Control Lever - Maximum front chainring range: 17T
Shimano Deore XT Rear Derailleur
$106.99
• 11-speed DynaSys compatible • Light Shift Operation With 20% Less Effort • Improved chain stability • Efficient Shifting And Smoother Driving • New Shadow Design With Optimized Slant Angle • New Shift Cable With New Hyper Low-Friction Coating Technology • New Shadow Design With Optimized Slant Angle For Stable Gear Position • Easy-To-Adjust Chain Stabilizer • Efficient Pulley Teeth Design • Direct Mount compatible
K-Edge K-EDGE 1x Mountain Chain Guide
$104.99
K-EDGE MTB Chain Guide is built to be the strongest and lightest solution to withstand the pedaling force of a derailed single ring chain in World Cup race conditions. - Full-cage design for chain retention under the most abusive cross situations - Braze-on mount and braze-on adapter clamp compatible - Fully adjustable for height, center-line, and angle - Optimized for 10 and 11spd drivetrains - CNC Machined from 6061-T6 Aluminum (no plastic parts) - Stainless Steel Hardware - Weight: 60.8 grams (excluding braze-on adapter clamp) - Compatibility: Single-ring bikes; frames with integrated braze-on front derailleur mount; also compatible with braze-on adapter clamps. All necessary hardware included - Optimized for 34T to 44T Chain Rings - “Hard to fit kits” may be needed for current applications, please contact Info@k-edge.com - Made in Boise, Idaho, USA - Lifetime Guarantee against material or manufacture defects. Damages due to abuse or crashing excluded
Shimano Deore XT Shadow + Rear Derailleur (Long Cage)
$103.99
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 engagement when riding over rough terrain. Sealed pulley bearings keep things spinning smoothly, and wide plate construction prevents the derailleur from getting clogged with mud and debris.
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