In Stock In Store
Mountain Derailleurs
Shop the best prices from top brands on new bike front and rear derailleurs for your mountain or electric ride's DIY overhaul, upgrade, or installation. High-performance, light, strong, and affordable components for 9, 10, 11, and 12 speed XT, XTR, and Eagle drivetrains from Shimano, SRAM, and more!Mountain Derailleurs
Showing 1 to 45 of 134 Products
$78.99
Shimano SLX RD-M7100 Rear Derailleur (Black) (1 x 12 Speed) (Long Cage) (SGS) (Shadow Plus)
$69.99
Shimano CUES RD-U6000-GS Rear Derailleur (Black) (1 x 10/11 Speed) (Medium Cage) (GS) (Shadow +)
$135.00
SRAM GX Eagle Rear Derailleur (Lunar) (12 Speed) (Long Cage) (Clutch)
Available in Stores
$23.62 - $32.99
Shimano Deore FD-M6000 Front Derailleur (3 x 10 Speed) (Side Swing) (Front Pull)
$118.99 - $121.99
Shimano Deore XT RD-M8100 Rear Derailleur (Black) (12 Speed) (Shadow Plus)
Sale: $15.40
Sale: $189.99
$538.00
SRAM X01 Eagle AXS Rear Derailleur (Lunar) (12 Speed) (Long Cage) (Clutch) (Electronic)
$10.49 - $11.24
Shimano Tourney FD-TX800 Front Derailleur (3 x 7/8 Speed) (Top Swing) (Dual Pull)
Sale: $34.99
$46.49
Shimano Deore RD-M5100 Rear Derailleur (Black) (11 Speed) (Long Cage) (SGS) (Shadow Plus)
$390.00
SRAM GX Eagle AXS Rear Derailleur (Lunar) (12 Speed) (Long Cage) (Clutch) (Electronic)
$78.19 - $79.99
Shimano Deore XT RD-M786 Rear Derailleur (Black) (10 Speed) (Shadow Plus)
$374.99
Shimano Deore XT Di2 RD-M8150-12 Rear Derailleur (Black) (12 Speed) (Long Cage) (SGS) (Shadow Plus) (Electronic) (E-MTB)
$79.99 - $84.99
Shimano Deore XT RD-M8000 Rear Derailleur (Black) (11 Speed) (Shadow Plus)
$27.49
Shimano Acera RD-M3020-8 Rear Derailleur (Black) (7/8 Speed) (Long Cage) (SGS)
Available in Stores
$59.49 - $63.89
Shimano Deore RD-M6000 Rear Derailleur (Black) (10 Speed) (Shadow Plus)
$29.49
SRAM X-4 Rear Derailleur (Black) (7-9 Speed) (Long Cage)
Available in Stores
Sale: $64.99
Available in Stores
Sale: $19.87
Sale: $19.99
Available in Stores
$15.37 - $22.99
Shimano Tourney RD-A070 Rear Derailleur (Black) (7 Speed) (Smart Cage)
$44.99 - $46.99
Shimano XT FD-M8100 Front Derailleur (Black) (2 x 12) (Side Swing) (Front Pull) (48.8/51.8mm Chainline)
Sale: $31.44
Available in Stores
Sale: $14.99
Available in Stores
$119.99
SRAM GX DH Rear Derailleur (Black) (7 Speed) (Medium Cage) (w/ Clutch) (A3)
$19.49
Shimano Altus FD-M370-6 Front Derailleur (3 x 9 Speed) (28.6/31.8/34.9mm) (Top Swing) (Dual Pull)
$34.49
Shimano CUES RD-U3020 Rear Derailleur (Black) (9-Speed) (Long Cage) (SGS) (Shadow)
Sale: $13.83
$12.99
Microshift M21 Rear Derailleur (Black) (6/7 Speed) (Long Cage) (Shimano Compatible)
$27.99 - $33.99
Microshift Acolyte Super Short Rear Derailleur (Black) (1 x 8 Speed)
$11.99 - $12.99
Microshift M21 Rear Derailleur (Black) (6/7 Speed) (Dropout Claw Hanger)
$13.99
Shimano Tourney FD-TY601-L6 Front Derailleur (3 x 6/7/8 Speed) (31.8/34.9mm) (Top Swing) (Dual Pull) (48T Max)
Sale: $10.49
Sale: $9.79
Sale: $10.49
Expected Thu, May 1, 2025
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Designed for tackling trails and eating up rough ...terrain, the Shimano CUES RD-U6020 Shadow rear derailleur offers smooth and responsive shifting performance across 2x11-speed LINKGLIDE drivetrains. The low-profile design and chain stabilization give riders confidence when riding over rougher terrain. ... -
The DEORE XT RD-M8150 11-Speed rear derailleur combines ...race-proven quality with Shimano original technologies to help keep you flowing and focused on the trail. The E-Bike optimized design allows full integration with SHIMANO E-Bike Systems and LINKGLIDE drivetrains for increased ... -
The Shimano CUES Di2 Rear Derailleur ensures smooth ...and intuitive auto-shifting so you can enjoy the fun and healthy benefits of being out on your bike. Automatic shifting always finds the perfect gear making for the ideal pedal stroke without ... -
The BOX One 11-Speed Rear Derailleur is designed ...to easily handle wide-range cassettes while maintaining outstanding chain tension. Designed with durable 3D forged linkages, this derailleur can withstand just about any kind of abuse you can throw at it on ...