Derailleurs & Parts

Shimano's XT RD-M8100-SGS is a long-cage 12-speed rear derailleur designed for 1x mountain-bike drivetrains that prioritizes quiet operation, stable shifting, and improved chain management. This XT-level derailleur blends low-profile geometry with updated internals to reduce chain bounce and drivetrain noise while delivering precise shifts...

The SRAM GX Eagle Rear Derailleur is a long-cage, 12-speed derailleur engineered for reliable chain management and compatibility with 10-50t and 10-52t cassettes while adding a Lunar finish to your drivetrain. Designed for trail and all-mountain riders who need robust shifting, the GX Eagle...

The SHIMANO Deore RD-M5100-SGS is an 11-speed long-cage rear derailleur in black, built for smooth, reliable shifting with a 51T max cog capacity and direct-mount compatibility. This derailleur is designed to handle wide-range 11-speed cassettes while keeping chain management efficient on trail and gravel...

SHIMANO's Deore RD-M5120 SGS is a low-profile Shadow RD+ rear derailleur that stabilizes your chain and delivers reliable 10/11-speed mountain bike shifting on rough trails. The RD-M5120 carries SHIMANO's Shadow RD+ heritage into the Deore range, combining a compact design with chain stabilization to...

The Relwears Altus RD-M310 is a direct-mount 7/8-speed rear derailleur engineered for smooth, reliable shifting across a wide range of bikes. This rear derailleur pairs proven RD-CT95 Altus technology with a compact, lightweight body to give everyday cyclists and light off-road riders dependable gear...

Shimano RDM310DL Altus GS is a long‑cage 7/8‑speed rear derailleur in black, engineered to handle a wide gear range with reliable, traditional top‑normal shifting action. This rear derailleur from Shimano's Altus family is built for riders who need trustworthy gear changes and extra chain...

The SHIMANO RD-M310 Altus is a 7/8-speed rear derailleur in silver designed to deliver dependable, accurate gear changes for entry- to mid-level bicycles. Built under Shimano's Altus designation, the RD-M310 (also referenced as RD-CT95 in some markets) provides straightforward rear shifting performance compatible with...

SRAM GX Eagle Pulley Kit provides the correct-sized upper and lower jockey wheels plus mounting hardware to restore smooth shifting on 12-speed GX Eagle and Apex Eagle rear derailleurs. If your SRAM GX Eagle or Apex Eagle derailleur is exhibiting noisy, sluggish, or inconsistent...

The Shimano Acera RD-M30208SGSL is a dependable 7-speed rear derailleur designed for straightforward installation and consistent shifting performance on commuter and entry-level mountain bikes. This compact, black Shimano Acera derailleur delivers the essential features riders need for reliable gear changes without unnecessary complexity. Built...

The Relwears RD-TY21B is a direct-mount rear derailleur built for 6- and 7-speed drivetrains, offering reliable shifting with an 11-tooth guide pulley and a 34-tooth capacity. This derailleur is a straightforward upgrade or replacement for bikes that use a direct-mount hanger system. Made from...

The Relwears Tourney RD-TX800 is a direct-mount rear derailleur designed for reliable 7/8-speed shifting on a wide range of bikes. This compact, road-and-trail compatible derailleur replaces worn rear shifting hardware with a purpose-built unit for 7- and 8-speed drivetrains. Engineered for straightforward installation and...

SRAM Eagle AXS Rear Derailleur Battery Cover in black protects the AXS battery from impacts and debris while maintaining a seamless fit on compatible SRAM AXS rear derailleurs. This compact replacement cowling is engineered to shield the SRAM Eagle AXS rear derailleur battery during...

The SHIMANO FD-M310 is a top-swing, band-mount front derailleur with dual-pull routing and adapters for 31.8mm and 28.6mm tubes, built to shift cleanly on 42T or 48T chainrings. Designed for mountain bikes and versatile drivetrains, the FD-M310 handles double or triple chainset configurations and...

alltoo SRAM eTap AXS Battery Protector Set is a two-piece cover kit that shields front and rear derailleur batteries and AXS dropper terminals from water, mud, and impacts while preserving a low-profile look. The alltoo protector set is engineered for riders who want to...

The Relwears RD-TY500 is a durable aluminum direct-mount rear derailleur engineered for smooth SIS-INDEX shifting across 6 and 7-speed drivetrains. The RD-TY500 rear derailleur from Relwears upgrades shifting reliability on folding, mountain, and commuter bikes that use 6- or 7-speed cassettes. Built with a...

The Shimano Tourney TY300 is a 6/7-speed rear derailleur with a dropout claw hanger designed to deliver dependable, easy-to-adjust shifting for entry-level road and mountain bikes. Built for riders who want straightforward performance without complexity, the Tourney TY300 pairs Shimano’s proven mechanics with a...

alltoo's SRAM eTap AXS Battery Protector Set is a two-piece cover kit that shields front and rear derailleur batteries and AXS terminals from impacts, moisture, and grime. This compact protector set is engineered specifically for SRAM wireless drivetrains — including Red, Force, Eagle, GX,...

SHIMANO Tourney RD-TY300-SGS is a reliable 6/7-speed rear derailleur with an SGS long cage and 13-tooth pulleys designed for smooth indexed shifting on entry-level mountain and hybrid bikes. This compact rear derailleur from SHIMANO provides dependable indexed shifting for 6- and 7-speed drivetrains. Built...

SHIMANO RD-6700 T/G Pulley Set y5x998150 is an original Shimano replacement pulley kit designed to restore crisp shifting on compatible 10- and 11-speed rear derailleurs. Whether you're rebuilding a race bike or replacing worn jockey wheels, this genuine Shimano pulley set fits a range...

The Shimano Tourney FD-A073 is a durable bottom-pull front derailleur engineered for 7-speed triple drivetrains, offering precise front shifts for city, touring, and recreational bikes. This compact, band-clamp front derailleur brings Shimano engineering to everyday riders who want reliable shifting without a big price...

Genuine SHIMANO Ultegra 6800 11-speed replacement pulley set (Version 2) restores smooth shifting by replacing worn pulley teeth and sealed bearings. If your Ultegra rear derailleur is skipping, feeling notchy, or sounding rough, the small pulley wheels are often the cause even when the...

The SHIMANO SM-AD91 clamp band adapter lets you attach modern Di2 and braze-on front derailleurs to traditional round tubes (M-size / fits 28.6mm seat tubes). If you want to use a braze-on Di2 front derailleur on a classic round steel or alloy frame that...

Genuine SHIMANO Ultegra 11-speed replacement pulley wheels for RD-R8000/6800 rear derailleurs restore smooth, precise shifting by replacing worn teeth and bearings. If your Ultegra rear derailleur is skipping, feeling notchy, or making extra noise, the problem is often the pulley wheels rather than the...

The Airuzara Tourney RD-TY300 is a long-cage, direct-mount rear derailleur engineered for reliable 6/7-speed shifting on a wide range of bikes. Designed as a lightweight yet durable replacement or upgrade for touring, commuter, and mountain bikes, the RD-TY300-SGS supports 6- and 7-speed SIS INDEX...

SHIMANO FD‑M313 is a down‑swing front derailleur engineered for 7/8‑speed drivetrains, offering dual‑pull compatibility and a 34.9mm band clamp (includes 31.8mm and 28.6mm adapters) for 42/48T chainrings. This compact front derailleur combines reliable shifting with straightforward installation for a wide range of commuter, touring...

Relwears RD-TZ500 is a direct-mount rear derailleur built for 6- and 7-speed drivetrains, offering durable steel construction, smooth shifting, and compatibility up to a 32T cassette. This derailleur is engineered as an affordable, dependable replacement or upgrade for entry-level mountain, road, folding, and commuter...