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
$214.00
SRAM X01 Eagle Rear Derailleur (Lunar) (12 Speed) (Long Cage) (Clutch)
Available in Stores
$27.49
Shimano Acera RD-M3020-8 Rear Derailleur (Black) (7/8 Speed) (Long Cage) (SGS)
Available in Stores
$45.99
Shimano Deore RD-M5100 Rear Derailleur (Black) (11 Speed) (Long Cage) (SGS) (Shadow Plus)
$10.49 - $11.24
Shimano Tourney FD-TX800 Front Derailleur (3 x 7/8 Speed) (Top Swing) (Dual Pull)
Sale: $19.99
Available in Stores
$78.19 - $79.99
Shimano Deore XT RD-M786 Rear Derailleur (Black) (10 Speed) (Shadow Plus)
$538.00
SRAM X01 Eagle AXS Rear Derailleur (Lunar) (12 Speed) (Long Cage) (Clutch) (Electronic)
Sale: $449.33
$650.00
SRAM XX SL T-Type Eagle AXS Transmission Rear Derailleur (Black) (12 Speed)
$753.00
SRAM XX1 Eagle AXS Rear Derailleur (Black) (12 Speed) (Long Cage) (Clutch) (Electronic)
$27.99 - $33.99
Microshift Acolyte Super Short Rear Derailleur (Black) (1 x 8 Speed)
Sale: $189.99
$79.99 - $84.99
Shimano Deore XT RD-M8000 Rear Derailleur (Black) (11 Speed) (Shadow Plus)
$390.00
SRAM GX Eagle AXS Rear Derailleur (Lunar) (12 Speed) (Long Cage) (Clutch) (Electronic)
Sale: $34.99
$118.99 - $121.99
Shimano Deore XT RD-M8100 Rear Derailleur (Black) (12 Speed) (Shadow Plus)
$56.99
Shimano Deore RD-M6100 Rear Derailleur (Black) (12 Speed) (Long Cage) (SGS) (Shadow Plus)
$78.99
Shimano SLX RD-M7100 Rear Derailleur (Black) (1 x 12 Speed) (Long Cage) (SGS) (Shadow Plus)
Sale: $31.44
Sale: $17.99
$135.00
SRAM GX Eagle Rear Derailleur (Lunar) (12 Speed) (Long Cage) (Clutch)
Available in Stores
Sale: $64.99
Available in Stores
Sale: $99.99
Sale: $28.49
Available in Stores
Sale: $18.37
$69.99
Shimano CUES RD-U6000-GS Rear Derailleur (Black) (1 x 10/11 Speed) (Medium Cage) (GS) (Shadow +)
$59.49 - $63.89
Shimano Deore RD-M6000 Rear Derailleur (Black) (10 Speed) (Shadow Plus)
Sale: $14.99
Available in Stores
$20.62 - $23.24
Shimano Deore FD-M4100 Front Derailleur (2 x 10 Speed) (Side Swing) (Front Pull) (48.8/51.8mm Chainline)
$52.99
Shimano CUES RD-U4000-GS Rear Derailleur (Black) (1 x 9 Speed) (Medium Cage) (GS) (Shadow)
Expected Mon, Apr 14, 2025
Sale: $10.49
Expected Sat, Mar 15, 2025
Sale: $15.99
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The DEORE XT RD-M8150 12-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 SRAM X01 X-Horizon Rear Derailleur lets you ...run 1 x 11 gearing without going bankrupt, plus it is packed with technology borrowed from XX1 to give you fast, precise, and smooth shifting action. Straight parallelogram design and pulley offset ... -
Engineered to provide unmatched shifting performance as an ...integral part of the SRAM Transmission. The Full Mount attachment system grips both sides of a UDH-compatible frame while directly contacting the rear axle and cassette to deliver the strongest design possible. ... -
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 ... -
Designed for tackling trails and eating up rough ...terrain, the Shimano CUES RD-U6020 Shadow rear derailleur offers smooth and responsive shifting performance across 2x10-speed LINKGLIDE drivetrains. Optimized pivot location, pulley design, and spring tension minimize chain shock when shifting, providing ...