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Mountain Bike Derailleur
Shop top brands' best prices on new bike front and rear derailleurs for your mountain or electric ride's DIY upgrade, installation, or overhaul. Light, strong, high-performance, affordable components for 12, 11, 10, and 9 speed Eagle, XTR, and XT drivetrains from SRAM, Shimano, and more!Mountain Bike Derailleur
Showing 1 to 45 of 111 Products
![Shimano Altus FD-M313-6 Front Derailleur (3 x 7/8 Speed) (28.6/31.8/34.9mm)](https://images.nashbar.com/cdn-cgi/image/f=auto,width=200/images/large/bikes/shimano/efdm313x6.jpg)
Sale: $15.40
![Shimano Altus FD-M310-6 Front Derailleur (3 x 7/8 Speed) (28.6/31.8/34.9mm)](https://images.nashbar.com/cdn-cgi/image/f=auto,width=200/images/large/bikes/shimano/efdm310x6.jpg)
Sale: $13.12
![Shimano Deore RD-M5120 Rear Derailleur (Black) (10/11 Speed) (Long Cage) (SGS)](https://images.nashbar.com/cdn-cgi/image/f=auto,width=200/images/large/bikes/shimano/erdm5120sgs.jpg)
Sale: $34.79
![Shimano Deore RD-M592 Rear Derailleur (Black) (9 Speed) (Long Cage) (SGS)](https://images.nashbar.com/cdn-cgi/image/f=auto,width=200/images/large/bikes/shimano/irdm592sgs.jpg)
Sale: $38.24
![Shimano Deore RD-M4120 Rear Derailleur (Black) (10/11 Speed) (Long Cage) (SGS)](https://images.nashbar.com/cdn-cgi/image/f=auto,width=200/images/large/bikes/shimano/erdm4120sgs.jpg)
Sale: $25.49
![Shimano Tourney RD-TX800 Rear Derailleur (Black/Silver) (7/8 Speed) (Long Cage) (SGS)](https://images.nashbar.com/cdn-cgi/image/f=auto,width=200/images/large/bikes/shimano/erdtx800sgsl.jpg)
Sale: $14.99
![Shimano Deore XT Di2 RD-M8050 Rear Derailleur (Black) (11 Speed) (Medium Cage) (GS)](https://images.nashbar.com/cdn-cgi/image/f=auto,width=200/images/large/bikes/shimano/irdm8050gs.jpg)
Sale: $247.49
![Shimano SLX RD-M7000 Rear Derailleur (Grey) (11 Speed) (Medium Cage) (GS)](https://images.nashbar.com/cdn-cgi/image/f=auto,width=200/images/large/bikes/shimano/irdm700011gs.jpg)
Sale: $56.99
![Shimano Deore FD-M5100 Front Derailleur (2 x 11 Speed) (28.6/31.8/34.9mm)](https://images.nashbar.com/cdn-cgi/image/f=auto,width=200/images/large/bikes/shimano/ifdm5100mx4.jpg)
Sale: $23.62
![Shimano Alivio RD-M3100 Rear Derailleur (Black) (9 Speed) (Long Cage) (SGS)](https://images.nashbar.com/cdn-cgi/image/f=auto,width=200/images/large/bikes/shimano/erdm3100sgs.jpg)
Sale: $27.74
![Shimano Tourney FD-TY510-TS6 Front Derailleur (3 x 6/7 Speed) (28.6/31.8/34.9mm)](https://images.nashbar.com/cdn-cgi/image/f=auto,width=200/images/large/bikes/shimano/efdty510tsx6.jpg)
Sale: $8.99
![Shimano DEORE XT Di2 RD-M8150-11 Rear Derailleur (Black) (11 Speed) (Long Cage) (SGS)](https://images.nashbar.com/cdn-cgi/image/f=auto,width=200/images/large/bikes/shimano/irdm815011sgs.jpg)
$374.99
Shimano DEORE XT Di2 RD-M8150-11 Rear Derailleur (Black) (11 Speed) (Long Cage) (SGS) (Shadow Plus) (Electronic) (E-MTB)
![Shimano Tourney FD-TY600-L6 Front Derailleur (3 x 6/7/8 Speed) (31.8/34.9mm)](https://images.nashbar.com/cdn-cgi/image/f=auto,width=200/images/large/bikes/shimano/efdty600lml6.jpg)
Sale: $9.79
![SRAM GX Eagle AXS Rear Derailleur (Lunar) (12 Speed) (Long Cage)](https://images.nashbar.com/cdn-cgi/image/f=auto,width=200/images/large/bikes/sram/00.7518.151.000.jpg)
$390.00
SRAM GX Eagle AXS Rear Derailleur (Lunar) (12 Speed) (Long Cage) (Clutch) (Electronic)
Expected Sat, Jul 27, 2024