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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

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Showing 1 to 45 of 127 Products
Shimano Deore XT RD-M8000 Rear Derailleur (Black) (11 Speed)
$79.99 - $84.99
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Shimano Deore XT RD-M8000 Rear Derailleur (Black) (11 Speed) (Shadow Plus)
Shimano Deore RD-M6100 Rear Derailleur (Black) (12 Speed) (Long Cage) (SGS)
$56.99
Sale: $53.99
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Shimano Deore RD-M6100 Rear Derailleur (Black) (12 Speed) (Long Cage) (SGS) (Shadow Plus)
Shimano Deore XT RD-M786 Rear Derailleur (Black) (10 Speed)
$78.19 - $79.99
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Shimano Deore XT RD-M786 Rear Derailleur (Black) (10 Speed) (Shadow Plus)
Shimano Deore RD-M5120 Rear Derailleur (Black) (10/11 Speed) (Long Cage) (SGS)
Average Rating:3
$38.99
Sale: $34.99
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Shimano Deore RD-M5120 Rear Derailleur (Black) (10/11 Speed) (Long Cage) (SGS) (Shadow Plus)
Shimano Deore RD-M6000 Rear Derailleur (Black) (10 Speed)
$59.49 - $63.89
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Shimano Deore RD-M6000 Rear Derailleur (Black) (10 Speed) (Shadow Plus)
Shimano Altus RD-M310-S Rear Derailleur (Silver) (7/8 Speed) (Long Cage)
$25.49
Sale: $18.37
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Shimano Altus RD-M310-S Rear Derailleur (Silver) (7/8 Speed) (Long Cage)
Shimano Tourney RD-TX800 Rear Derailleur (Black/Silver) (7/8 Speed) (Long Cage) (SGS)
$19.99
Sale: $14.99
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Shimano Tourney RD-TX800 Rear Derailleur (Black/Silver) (7/8 Speed) (Long Cage) (SGS)
Available in Stores
Box Four Prime 9 Derailleur (Black) (8 Speed) (Wide Cage)
$68.99
Sale: $62.09
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Box Four Prime 9 Derailleur (Black) (8 Speed) (Wide Cage) (Clutch)
Shimano Tourney RD-TY300 Rear Derailleur (Black) (6/7 Speed)
$7.99 - $13.99
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Shimano Tourney RD-TY300 Rear Derailleur (Black) (6/7 Speed)
Shimano SLX RD-M7000 Rear Derailleur (Grey) (11 Speed) (Medium Cage) (GS)
Average Rating:5
$70.99
Sale: $54.99
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Shimano SLX RD-M7000 Rear Derailleur (Grey) (11 Speed) (Medium Cage) (GS) (Shadow Plus)
Available in Stores
Shimano Altus RD-M310-L Rear Derailleur (Black) (7/8 Speed) (Long Cage)
$27.49
Sale: $19.99
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Shimano Altus RD-M310-L Rear Derailleur (Black) (7/8 Speed) (Long Cage)
Available in Stores
Shimano Deore XT FD-M8025-E Front Derailleur (2 x 11 Speed) (E-Type)
$42.49
Sale: $27.62
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Shimano Deore XT FD-M8025-E Front Derailleur (2 x 11 Speed) (E-Type) (Top Swing) (Bottom Pull)
Shimano Altus FD-M371-6 Front Derailleur (3 x 9 Speed) (28.6/31.8/34.9mm)
$21.99
Sale: $19.49
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Shimano Altus FD-M371-6 Front Derailleur (3 x 9 Speed) (28.6/31.8/34.9mm) (Down Swing) (Dual Pull)
Shimano Altus FD-M313-6 Front Derailleur (3 x 7/8 Speed) (28.6/31.8/34.9mm)
$19.25
Sale: $14.60
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Shimano Altus FD-M313-6 Front Derailleur (3 x 7/8 Speed) (28.6/31.8/34.9mm) (Down Swing) (Dual Pull)
Shimano Alivio RD-M3100 Rear Derailleur (Black) (9 Speed) (Long Cage) (SGS)
$36.99
Sale: $31.44
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Shimano Alivio RD-M3100 Rear Derailleur (Black) (9 Speed) (Long Cage) (SGS) (Shadow)
Shimano Tourney RD-TZ500 Rear Derailleur (Black) (6 Speed)
$10.49 - $11.99
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Shimano Tourney RD-TZ500 Rear Derailleur (Black) (6 Speed)
Shimano Tourney RD-TY500 Rear Derailleur (Black) (6/7 Speed)
$11.99 - $18.99
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Shimano Tourney RD-TY500 Rear Derailleur (Black) (6/7 Speed)
Shimano Tourney RD-A070 Rear Derailleur (Black) (7 Speed)
$15.37 - $22.99
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Shimano Tourney RD-A070 Rear Derailleur (Black) (7 Speed) (Smart Cage)
Shimano Tourney FD-TY600-L6 Front Derailleur (3 x 6/7/8 Speed) (31.8/34.9mm)
$13.99
Sale: $9.79
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Shimano Tourney FD-TY600-L6 Front Derailleur (3 x 6/7/8 Speed) (31.8/34.9mm) (Top Swing) (Dual Pull) (42T Max)
SRAM GX Rear Derailleur (Black) (10 Speed)
$58.99 - $70.99
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SRAM GX Rear Derailleur (Black) (10 Speed) (Clutch)
SRAM GX Rear Derailleur (Black) (1 x 11 Speed) (Long Cage)
Average Rating:5
$118.99
Sale: $115.99
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SRAM GX Rear Derailleur (Black) (1 x 11 Speed) (Long Cage) (Clutch)
Shimano Altus FD-M310-6 Front Derailleur (3 x 7/8 Speed) (28.6/31.8/34.9mm)
$17.49
Sale: $15.99
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Shimano Altus FD-M310-6 Front Derailleur (3 x 7/8 Speed) (28.6/31.8/34.9mm) (Top Swing) (Dual Pull)
Shimano XTR RD-M9000 Rear Derailleur (Black) (11 Speed) (Long Cage) (SGS)
Average Rating:5
$212.99
Sale: $189.99
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Shimano XTR RD-M9000 Rear Derailleur (Black) (11 Speed) (Long Cage) (SGS) (Shadow Plus)
Shimano Deore FD-M6000 Front Derailleur (3 x 10 Speed)
$20.99 - $32.99
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Shimano Deore FD-M6000 Front Derailleur (3 x 10 Speed) (Side Swing) (Front Pull)
Shimano Deore XT Di2 RD-M8050 Rear Derailleur (Black) (11 Speed) (Medium Cage) (GS)
$329.99
Sale: $259.99
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Shimano Deore XT Di2 RD-M8050 Rear Derailleur (Black) (11 Speed) (Medium Cage) (GS) (Shadow Plus) (Electronic)
Shimano Tourney FD-TX800 Front Derailleur (3 x 7/8 Speed)
$10.49 - $11.24
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Shimano Tourney FD-TX800 Front Derailleur (3 x 7/8 Speed) (Top Swing) (Dual Pull)
Shimano Altus FD-M2000 Front Derailleur (3 x 9 Speed)
$14.62 - $19.49
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Shimano Altus FD-M2000 Front Derailleur (3 x 9 Speed) (Dual Pull)
Shimano XTR Di2 RD-M9050 Rear Derailleur (Black) (11 Speed) (Medium Cage) (GS)
$619.99
Sale: $449.33
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Shimano XTR Di2 RD-M9050 Rear Derailleur (Black) (11 Speed) (Medium Cage) (GS) (Shadow Plus) (Electronic)
Shimano Alivio FD-M3120 Front Derailleur (2 x 9 Speed)
$24.49
Sale: $18.37
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Shimano Alivio FD-M3120 Front Derailleur (2 x 9 Speed) (Side Swing) (Front Pull)
Box One Rear Derailleur (Black) (11 Speed) (Wide Cage)
$157.99
Sale: $142.19
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Box One Rear Derailleur (Black) (11 Speed) (Wide Cage) (Clutch)
Shimano Deore FD-M4100 Front Derailleur (2 x 10 Speed)
$20.62 - $23.24
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Shimano Deore FD-M4100 Front Derailleur (2 x 10 Speed) (Side Swing) (Front Pull) (48.8/51.8mm Chainline)
Shimano Deore FD-M5100 Front Derailleur (2 x 11 Speed)
$23.62 - $30.49
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Shimano Deore FD-M5100 Front Derailleur (2 x 11 Speed) (Side Swing) (Front Pull) (48.8/51.8mm Chainline)
Shimano Alivio FD-M3100-M Front Derailleur (3 x 9 Speed) (28.6/31.8/34.9mm)
$24.49
Sale: $18.37
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Shimano Alivio FD-M3100-M Front Derailleur (3 x 9 Speed) (28.6/31.8/34.9mm) (Side Swing)
Shimano Deore XT Di2 FD-M8070 Front Derailleur (2 x 11 Speed) (Braze-On)
Average Rating:5
$207.99
Sale: $155.99
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Shimano Deore XT Di2 FD-M8070 Front Derailleur (2 x 11 Speed) (Braze-On) (Down Swing) (Electronic)
Shimano Deore XT FD-M8000 Front Derailleur (3 x 11 Speed) (E-Type)
$42.49
Sale: $27.62
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Shimano Deore XT FD-M8000 Front Derailleur (3 x 11 Speed) (E-Type) (Side Swing) (Front Pull)
Box One 11S Rear Derailleur (Matte Onyx) (11 Speed) (Wide Cage)
$131.99
Sale: $118.79
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Box One 11S Rear Derailleur (Matte Onyx) (11 Speed) (Wide Cage) (Clutch)
Shimano Tourney FD-TY600-L3 Front Derailleur (3 x 6/7/8 Speed) (31.8/34.9mm)
$13.99
Sale: $10.49
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Shimano Tourney FD-TY600-L3 Front Derailleur (3 x 6/7/8 Speed) (31.8/34.9mm) (Top Swing) (Dual Pull) (42T Max)
Shimano FD-TY606-L Front Derailleur (3 x 6/7/8 Speed) (Top Swing) (Dual Pull) (31.8/34.9mm)
$13.99
Sale: $10.49
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Shimano FD-TY606-L Front Derailleur (3 x 6/7/8 Speed) (Top Swing) (Dual Pull) (31.8/34.9mm)
Shimano XTR Di2 FD-M9050 Front Derailleur (3 x 11 Speed) (Without Bracket)
Average Rating:5
$399.99
Sale: $290.83
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Shimano XTR Di2 FD-M9050 Front Derailleur (3 x 11 Speed) (Without Bracket) (Down Swing) (Electronic)
Shimano XTR Di2 FD-M9070 Front Derailleur (2 x 11 Speed) (Without Bracket)
$399.99
Sale: $290.13
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Shimano XTR Di2 FD-M9070 Front Derailleur (2 x 11 Speed) (Without Bracket) (Down Swing) (Electronic)
Microshift XLE Mountain Rear Derailleur (Black) (10 Speed) (Long Cage)
$42.99
Sale: $37.99
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Microshift XLE Mountain Rear Derailleur (Black) (10 Speed) (Long Cage) (Shimano Compatible)
SRAM GX Eagle Rear Derailleur (Lunar) (12 Speed) (Long Cage)
$135.00
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SRAM GX Eagle Rear Derailleur (Lunar) (12 Speed) (Long Cage) (Clutch)
Available in Stores
SRAM Apex XPLR D1 Rear Derailleur (Black) (12 Speed)
$124.99
Sale: $99.99
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SRAM Apex XPLR D1 Rear Derailleur (Black) (12 Speed) (Mechanical)
Shimano Deore RD-M5100 Rear Derailleur (Black) (11 Speed) (Long Cage) (SGS)
$45.99
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Shimano Deore RD-M5100 Rear Derailleur (Black) (11 Speed) (Long Cage) (SGS) (Shadow Plus)
SRAM X5 Rear Derailleur (Black) (9 Speed)
$38.49 - $46.49
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SRAM X5 Rear Derailleur (Black) (9 Speed)
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