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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 114 Products
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
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 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 SLX RD-M7100 Rear Derailleur (Black) (1 x 12 Speed) (Long Cage) (SGS)
$78.99
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Shimano SLX RD-M7100 Rear Derailleur (Black) (1 x 12 Speed) (Long Cage) (SGS) (Shadow Plus)
Shimano Alivio RD-M3100 Rear Derailleur (Black) (9 Speed) (Long Cage) (SGS)
$36.99
Sale: $27.74
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Shimano Alivio RD-M3100 Rear Derailleur (Black) (9 Speed) (Long Cage) (SGS) (Shadow)
Shimano Deore RD-M592 Rear Derailleur (Black) (9 Speed) (Long Cage) (SGS)
Average Rating:3
$50.99
Sale: $43.34
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Shimano Deore RD-M592 Rear Derailleur (Black) (9 Speed) (Long Cage) (SGS) (Shadow)
Shimano Deore RD-M5120 Rear Derailleur (Black) (10/11 Speed) (Long Cage) (SGS)
$43.49
Sale: $36.97
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Shimano Deore RD-M5120 Rear Derailleur (Black) (10/11 Speed) (Long Cage) (SGS) (Shadow Plus)
Shimano XTR RD-M9100 Rear Derailleur (Black) (1 x 12 Speed)
$232.89 - $273.99
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Shimano XTR RD-M9100 Rear Derailleur (Black) (1 x 12 Speed) (Shadow Plus)
Shimano Deore RD-M5100 Rear Derailleur (Black) (11 Speed) (Long Cage) (SGS)
$45.99
Sale: $39.09
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Shimano Deore RD-M5100 Rear Derailleur (Black) (11 Speed) (Long Cage) (SGS) (Shadow Plus)
Shimano Altus RD-M310-L Rear Derailleur (Black) (7/8 Speed) (Long Cage)
$27.49
Sale: $15.99
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Shimano Altus RD-M310-L Rear Derailleur (Black) (7/8 Speed) (Long Cage)
Available in Stores
Shimano Deore XT RD-M786 Rear Derailleur (Black) (10 Speed)
$71.24 - $73.59
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Shimano Deore XT RD-M786 Rear Derailleur (Black) (10 Speed) (Shadow Plus)
Shimano Deore RD-M6000 Rear Derailleur (Black) (10 Speed)
$49.99 - $53.99
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Shimano Deore RD-M6000 Rear Derailleur (Black) (10 Speed) (Shadow Plus)
Shimano XTR Di2 FD-M9050 Front Derailleur (3 x 11 Speed) (Without Bracket)
$399.99
Sale: $299.99
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Shimano XTR Di2 FD-M9050 Front Derailleur (3 x 11 Speed) (Without Bracket) (Down Swing) (Electronic)
Shimano Deore XT RD-M8000 Rear Derailleur (Black) (11 Speed)
$63.99 - $73.49
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Shimano Deore XT RD-M8000 Rear Derailleur (Black) (11 Speed) (Shadow Plus)
Shimano Deore XT Di2 RD-M8050 Rear Derailleur (Black) (11 Speed) (Medium Cage) (GS)
$329.99
Sale: $247.49
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Shimano Deore XT Di2 RD-M8050 Rear Derailleur (Black) (11 Speed) (Medium Cage) (GS) (Shadow Plus) (Electronic)
Microshift Advent Rear Derailleur (Black) (9 Speed)
$43.99 - $58.99
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Microshift Advent Rear Derailleur (Black) (9 Speed)
Shimano Acera RD-M3020-8 Rear Derailleur (Black) (7/8 Speed) (Long Cage) (SGS)
$28.49
Sale: $24.22
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Shimano Acera RD-M3020-8 Rear Derailleur (Black) (7/8 Speed) (Long Cage) (SGS)
Available in Stores
Shimano Deore RD-M6100 Rear Derailleur (Black) (12 Speed) (Long Cage) (SGS)
$56.99
Sale: $43.99
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Shimano Deore RD-M6100 Rear Derailleur (Black) (12 Speed) (Long Cage) (SGS) (Shadow Plus)
Shimano Tourney RD-TY300 Rear Derailleur (Black) (6/7 Speed)
$7.99 - $11.99
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Shimano Tourney RD-TY300 Rear Derailleur (Black) (6/7 Speed)
Shimano Deore XT Di2 RD-M8150-12 Rear Derailleur (Black) (12 Speed) (Long Cage) (SGS)
$374.99
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Shimano Deore XT Di2 RD-M8150-12 Rear Derailleur (Black) (12 Speed) (Long Cage) (SGS) (Shadow Plus) (Electronic) (E-MTB)
Shimano XTR RD-M9000 Rear Derailleur (Black) (11 Speed) (Long Cage) (SGS)
Average Rating:5
$212.99
Sale: $159.74
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Shimano XTR RD-M9000 Rear Derailleur (Black) (11 Speed) (Long Cage) (SGS) (Shadow Plus)
Shimano Deore XT RD-M8100 Rear Derailleur (Black) (12 Speed) (Shadow Plus)
$118.99
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Shimano Deore XT RD-M8100 Rear Derailleur (Black) (12 Speed) (Shadow Plus)
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)
SRAM Apex Eagle D1 Rear Derailleur (Black) (12 Speed)
$124.99
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SRAM Apex Eagle D1 Rear Derailleur (Black) (12 Speed) (Mechanical)
Shimano Altus FD-M313-6 Front Derailleur (3 x 7/8 Speed) (28.6/31.8/34.9mm)
$19.49
Sale: $15.72
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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 Deore FD-M5100 Front Derailleur (2 x 11 Speed) (28.6/31.8/34.9mm)
$31.99
Sale: $23.99
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Shimano Deore FD-M5100 Front Derailleur (2 x 11 Speed) (28.6/31.8/34.9mm) (Side Swing) (Front Pull) (48.8/51.8mm Chainline)
Shimano Acera RD-M360 Rear Derailleur (Black) (7/8 Speed) (Long Cage) (SGS)
$30.99
Sale: $23.24
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Shimano Acera RD-M360 Rear Derailleur (Black) (7/8 Speed) (Long Cage) (SGS)
Shimano Tourney RD-TY500 Rear Derailleur (Black) (6/7 Speed)
$9.99 - $19.49
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Shimano Tourney RD-TY500 Rear Derailleur (Black) (6/7 Speed)
Shimano Deore RD-M5130 Rear Derailleur (Black) (10 Speed) (Medium Cage)
$54.99
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Shimano Deore RD-M5130 Rear Derailleur (Black) (10 Speed) (Medium Cage)
Shimano Deore RD-M4120 Rear Derailleur (Black) (10/11 Speed) (Long Cage) (SGS)
Average Rating:2
$33.99
Sale: $25.49
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Shimano Deore RD-M4120 Rear Derailleur (Black) (10/11 Speed) (Long Cage) (SGS) (Shadow)
Shimano Altus FD-M371-6 Front Derailleur (3 x 9 Speed) (28.6/31.8/34.9mm)
$21.99
Sale: $14.62
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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 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)
Shimano Alivio RD-T4000 Rear Derailleur (Black) (9 Speed) (Long Cage) (SGS)
$37.99
Sale: $27.99
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Shimano Alivio RD-T4000 Rear Derailleur (Black) (9 Speed) (Long Cage) (SGS)
Shimano Acera RD-T3000 Rear Derailleur (Black) (9 Speed) (Long Cage) (SGS)
$33.99
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Shimano Acera RD-T3000 Rear Derailleur (Black) (9 Speed) (Long Cage) (SGS)
Shimano Tourney FD-TY510-TS6 Front Derailleur (3 x 6/7 Speed) (28.6/31.8/34.9mm)
$11.99
Sale: $8.99
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Shimano Tourney FD-TY510-TS6 Front Derailleur (3 x 6/7 Speed) (28.6/31.8/34.9mm) (Top Swing) (Dual Pull) (48T Max)
Microshift Mountain Mezzo M20 Front Derailleur (3 x 7/8 Speed) (28.6/31.8/34.9mm)
$11.99
Sale: $10.99
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Microshift Mountain Mezzo M20 Front Derailleur (3 x 7/8 Speed) (28.6/31.8/34.9mm) (Down Swing) (Dual Pull)
Shimano Tourney RD-TX800 Rear Derailleur (Black/Silver) (7/8 Speed) (Long Cage) (SGS)
$17.99
Sale: $14.99
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Shimano Tourney RD-TX800 Rear Derailleur (Black/Silver) (7/8 Speed) (Long Cage) (SGS)
Available in Stores
Shimano Altus FD-M2000 Front Derailleur (3 x 9 Speed)
$15.74 - $20.99
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Shimano Altus FD-M2000 Front Derailleur (3 x 9 Speed) (Dual Pull)
Shimano Tourney FD-TX800 Front Derailleur (3 x 7/8 Speed)
$14.99
Sale: $11.24
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Shimano Tourney FD-TX800 Front Derailleur (3 x 7/8 Speed) (Top Swing) (Dual Pull)
Shimano Altus FD-M310-6 Front Derailleur (3 x 7/8 Speed) (28.6/31.8/34.9mm)
$17.99
Sale: $13.49
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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 Tourney RD-FT35A Rear Derailleur (Black) (6/7 Speed) (w/ Frame Hanger) (Short Cage)
$17.99
Sale: $13.49
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Shimano Tourney RD-FT35A Rear Derailleur (Black) (6/7 Speed) (w/ Frame Hanger) (Short Cage)
Shimano Tourney RD-TZ500 Rear Derailleur (Black) (6 Speed)
$11.24 - $11.99
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Shimano Tourney RD-TZ500 Rear Derailleur (Black) (6 Speed)
Shimano Deore XT FD-M8025-E Front Derailleur (2 x 11 Speed) (E-Type)
$42.49
Sale: $29.74
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Shimano Deore XT FD-M8025-E Front Derailleur (2 x 11 Speed) (E-Type) (Top Swing) (Bottom Pull)
Shimano Tourney FD-TY601-L3 Front Derailleur (3 x 6/7/8 Speed) (31.8/34.9mm)
$13.99
Sale: $9.99
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Shimano Tourney FD-TY601-L3 Front Derailleur (3 x 6/7/8 Speed) (31.8/34.9mm) (Top Swing) (Dual Pull) (48T Max)
Shimano Tourney FD-TY500-TS6 Front Derailleur (3 x 6/7 Speed) (28.6/31.8/34.9mm)
$11.99
Sale: $8.99
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Shimano Tourney FD-TY500-TS6 Front Derailleur (3 x 6/7 Speed) (28.6/31.8/34.9mm) (Top Swing) (Dual Pull) (42T Max)
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