Mountain Derailleurs - 241 Products

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BOX Rear Derailleurs

BOX One Prime 9 X-Wide Cage Rear Derailleur - 9 Speed

BOX One Prime 9 X-Wide Cage Rear Derailleur
9 Speed
From: $97.00
MSRP: $194.99
You save 50%!

BOX Two Prime 9 X-Wide Cage Rear Derailleur - 9 Speed

BOX Two Prime 9 X-Wide Cage Rear Derailleur
9 Speed
From: $79.99
MSRP: $141.99
You save 44%!

BOX Three Prime 9 X-Wide Cage Rear Derailleur - 9 Speed

BOX Three Prime 9 X-Wide Cage Rear Derailleur
9 Speed
From: $46.00
MSRP: $83.99
You save 45%!

BOX Four Prime Wide Cage Rear Derailleur - 8 Speed

BOX Four Prime Wide Cage Rear Derailleur
8 Speed
From: $37.99
MSRP: $68.99
You save 45%!

MicroShift Direct Mount Front Derailleur

MicroShift FD-M462 MarvoLT Double Front Derailleur - 9 Speed

MicroShift FD-M462 MarvoLT Double Front Derailleur
9 Speed
From: $25.99

MicroShift High Clamp Front Derailleur

MicroShift FD-T382 Double Front Derailleur - 8 Speed

MicroShift FD-T382 Double Front Derailleur
8 Speed
From: $18.99

MicroShift FD-T492 Advent Double Front Derailleur - 9 Speed

MicroShift FD-T492 Advent Double Front Derailleur
9 Speed
From: $27.99
MSRP: $29.99
You save 7%!

MicroShift Low Clamp Front Derailleur

MicroShift FD-M20 Mezzo Triple Front Derailleur - 7/8 Speed

MicroShift FD-M20 Mezzo Triple Front Derailleur
7/8 Speed
From: $11.99

MicroShift FD-M22L Mezzo Triple Front Derailleur - 7/8 Speed

MicroShift FD-M22L Mezzo Triple Front Derailleur
7/8 Speed

New Item
From: $11.99

MicroShift FD-M30 Mezzo Triple Front Derailleur - 8 Speed

MicroShift FD-M30 Mezzo Triple Front Derailleur
8 Speed
From: $11.99
MSRP: $12.99
You save 8%!

MicroShift FD-M462 MarvoLT Double Front Derailleur - 9 Speed

MicroShift FD-M462 MarvoLT Double Front Derailleur
9 Speed
From: $22.00
MSRP: $25.99
You save 15%!

MicroShift Rear Derailleurs

MicroShift Acolyte RD-M5180 Rear Derailleur - 8 Speed

MicroShift Acolyte RD-M5180 Rear Derailleur
8 Speed
From: $24.00
MSRP: $29.99
You save 20%!

MicroShift Acolyte RD-M5185 Clutch Rear Derailleur - 8 Speed

MicroShift Acolyte RD-M5185 Clutch Rear Derailleur
8 Speed
From: $26.00
MSRP: $36.99
You save 30%!

MicroShift ADVENT Clutch Rear Derailleur - 9 Speed

MicroShift ADVENT Clutch Rear Derailleur
9 Speed
From: $46.00
MSRP: $64.99
You save 29%!

MicroShift ADVENT RD-M619 Rear Derailleur - 9 Speed

MicroShift ADVENT RD-M619 Rear Derailleur
9 Speed
From: $34.00
MSRP: $47.99
You save 29%!

MicroShift ADVENT X Rear Derailleur - 10 Speed

MicroShift ADVENT X Rear Derailleur
10 Speed
From: $60.00
MSRP: $76.99
You save 22%!

MicroShift ADVENT X Ver.2 Rear Derailleur - 10 Speed

MicroShift ADVENT X Ver.2 Rear Derailleur
10 Speed
From: $72.99
MSRP: $76.99
You save 5%!

MicroShift M21 Rear Derailleur - 6/7 Speed

MicroShift M21 Rear Derailleur
6/7 Speed
From: $12.99

MicroShift M26 Rear Derailleur - 7/8 Speed

MicroShift M26 Rear Derailleur
7/8 Speed
From: $14.99

MicroShift MarvoLT RD-M46L Rear Derailleur - 8/9 Speed

MicroShift MarvoLT RD-M46L Rear Derailleur
8/9 Speed
From: $18.00
MSRP: $25.99
You save 31%!

MicroShift RD-M62L XLE Rear Derailleur - 10 Speed

MicroShift RD-M62L XLE Rear Derailleur
10 Speed
From: $21.00
MSRP: $42.99
You save 51%!

MicroShift RD-M865M XCD Rear Derailleur - 11 Speed

MicroShift RD-M865M XCD Rear Derailleur
11 Speed
From: $67.99
MSRP: $73.99
You save 8%!

MicroShift Sword 1x Rear Derailleur - 10 Speed

MicroShift Sword 1x Rear Derailleur
10 Speed
From: $74.99
MSRP: $79.99
You save 6%!

MicroShift Sword 2x Rear Derailleur - 10 Speed

MicroShift Sword 2x Rear Derailleur
10 Speed
From: $74.99
MSRP: $79.99
You save 6%!

MicroShift Sword Black 1x Rear Derailleur - 9/10 Speed

MicroShift Sword Black 1x Rear Derailleur
9/10 Speed
From: $38.99
MSRP: $42.99
You save 9%!

MicroShift Sword Black 2x Rear Derailleur - 9/10 Speed

MicroShift Sword Black 2x Rear Derailleur
9/10 Speed
From: $38.99
MSRP: $42.99
You save 9%!

S-Ride Rear Derailleurs

S-Ride M300 Rear Derailleur - 9 Speed; 2:1 Shimano Ratio

S-Ride M300 Rear Derailleur
9 Speed; 2:1 Shimano Ratio

Closeout
From: $9.99
MSRP: $34.99
You save 71%!

Shimano Direct Mount Front Derailleur

Shimano FD-U4000-D CUES Double DM Front Derailleur - 2 x 9/10 Speed, Side Swing

Shimano FD-U4000-D CUES Double DM Front Derailleur
2 x 9/10 Speed, Side Swing

New Item
From: $29.99

Shimano FD-U6000 CUES Double DM Front Derailleur - 2 x 10/11 Speed, Side Swing

Shimano FD-U6000 CUES Double DM Front Derailleur
2 x 10/11 Speed, Side Swing
From: $34.99

Shimano FD-M4100 Deore Double DM Front Derailleur - 2 x 10 Speed, Side Swing

Shimano FD-M4100 Deore Double DM Front Derailleur
2 x 10 Speed, Side Swing
From: $32.99

Shimano FD-M5100 Deore Double DM Front Derailleur - 2 x 11 Speed, Side Swing

Shimano FD-M5100 Deore Double DM Front Derailleur
2 x 11 Speed, Side Swing
From: $35.99

Shimano FD-M6000-D Deore Triple DM Derailleur - 3 x 10 Speed Side Swing

Shimano FD-M6000-D Deore Triple DM Derailleur
3 x 10 Speed Side Swing
From: $24.99
MSRP: $37.99
You save 34%!

Shimano FD-M6020-D Deore Double DM Derailleur - 2 x 10 Speed Side Swing

Shimano FD-M6020-D Deore Double DM Derailleur
2 x 10 Speed Side Swing
From: $25.00
MSRP: $37.99
You save 34%!

Shimano FD-M7020 SLX Double Direct Mount Derailler - 2 x 11 Speed

Shimano FD-M7020 SLX Double Direct Mount Derailler
2 x 11 Speed

Closeout
From: $9.99
MSRP: $29.99
You save 67%!

Shimano FD-M8000 XT Triple Direct Mount Derailleur - 3 x 11 Speed Side Swing

Shimano FD-M8000 XT Triple Direct Mount Derailleur
3 x 11 Speed Side Swing
From: $34.99
MSRP: $44.99
You save 22%!

Shimano FD-M8020 XT Double Direct Mount Derailleur - 2 x 11 Speed Side Swing

Shimano FD-M8020 XT Double Direct Mount Derailleur
2 x 11 Speed Side Swing

Closeout
From: $15.99
MSRP: $31.99
You save 50%!

Shimano FD-M8025 XT Double Direct Mount Derailleur - 2 x 11 Speed

Shimano FD-M8025 XT Double Direct Mount Derailleur
2 x 11 Speed

Closeout
From: $19.99
MSRP: $35.99
You save 44%!

Shimano FD-M8100 XT Double Direct Mount Derailleur - 2 x 12 Speed Side Swing

Shimano FD-M8100 XT Double Direct Mount Derailleur
2 x 12 Speed Side Swing
From: $44.99

Shimano FD-M9020 XTR Double Direct Mount Derailler - 2 x 11 Speed Side Swing

Shimano FD-M9020 XTR Double Direct Mount Derailler
2 x 11 Speed Side Swing

Closeout
From: $29.99
MSRP: $119.99
You save 75%!

Shimano FD-M9025 XTR Double Direct Mount Derailler - 2 x 11 Speed

Shimano FD-M9025 XTR Double Direct Mount Derailler
2 x 11 Speed

Closeout
From: $29.99
MSRP: $93.99
You save 68%!

Shimano FD-M9100 XTR Double Direct Mount Derailler - 2 x 12 Speed Side Swing

Shimano FD-M9100 XTR Double Direct Mount Derailler
2 x 12 Speed Side Swing
From: $129.99

Shimano E2 Type Front Derailleurs

Shimano FD-M4020 Deore E2 Double Frnt Derailleur - 2 x 9 Speed Side Swing

Shimano FD-M4020 Deore E2 Double Frnt Derailleur
2 x 9 Speed Side Swing

Closeout
From: $13.99

Shimano FD-U4000 E2 Type CUES Double Derailleur - 2 x 9/10 Speed Side Swing

Shimano FD-U4000 E2 Type CUES Double Derailleur
2 x 9/10 Speed Side Swing
From: $29.99

Shimano FD-M4100-E Deore E2 Double Frnt Derailleur - 2 x 10 Speed Side Swing

Shimano FD-M4100-E Deore E2 Double Frnt Derailleur
2 x 10 Speed Side Swing
From: $32.99

Shimano FD-M5100-E Deore E2 Double Frnt Derailleur - 2 x 11 Speed Side Swing

Shimano FD-M5100-E Deore E2 Double Frnt Derailleur
2 x 11 Speed Side Swing
From: $35.99

Shimano FD-M6000-E Deore E2 Triple Frnt Derailleur - 3 x 10 Speed Side Swing

Shimano FD-M6000-E Deore E2 Triple Frnt Derailleur
3 x 10 Speed Side Swing
From: $32.99
MSRP: $37.99
You save 13%!

Shimano FD-M7025 E2 Type SLX Double Derailleur - 2 x 11 Speed

Shimano FD-M7025 E2 Type SLX Double Derailleur
2 x 11 Speed

Closeout
From: $9.99
MSRP: $29.99
You save 67%!

Shimano FD-M785 XT E2 Double Front Derailleur - 2 x 10 Speed

Shimano FD-M785 XT E2 Double Front Derailleur
2 x 10 Speed

Closeout
From: $9.99
MSRP: $38.99
You save 74%!

1 Review

Shimano FD-M7020 E2 Type SLX Double Derailleur - 2 x 11 Speed Side Swing

Shimano FD-M7020 E2 Type SLX Double Derailleur
2 x 11 Speed Side Swing

Closeout
Overstock Item From: $14.99
MSRP: $29.99
You save 50%!

Shimano FD-M8000 E2 Type XT Triple Derailleur - 3 x 11 Speed Side Swing

Shimano FD-M8000 E2 Type XT Triple Derailleur
3 x 11 Speed Side Swing
From: $44.99

Shimano FD-M8020 E2 Type XT Double Derailleur - 2 x 11 Speed Side Swing

Shimano FD-M8020 E2 Type XT Double Derailleur
2 x 11 Speed Side Swing
From: $9.99
MSRP: $35.99
You save 72%!

Shimano FD-M8025 E2 Type XT Double Derailleur - 2 x 11 Speed

Shimano FD-M8025 E2 Type XT Double Derailleur
2 x 11 Speed

Closeout
From: $8.99
MSRP: $35.99
You save 75%!

Shimano FD-M8100 E2 Type XT Double Derailleur - 2 x 12 Speed Side Swing

Shimano FD-M8100 E2 Type XT Double Derailleur
2 x 12 Speed Side Swing
From: $44.99

Shimano FD-M9000 E2 Type XTR Triple Derailleur - 3 x 11 Speed Side Swing

Shimano FD-M9000 E2 Type XTR Triple Derailleur
3 x 11 Speed Side Swing

Closeout
Overstock Item From: $29.99
MSRP: $119.99
You save 75%!

Shimano FD-M9020 E2 Type XTR Double Derailleur - 2 x 11 Speed Side Swing

Shimano FD-M9020 E2 Type XTR Double Derailleur
2 x 11 Speed Side Swing

Closeout
Overstock Item From: $19.99
MSRP: $109.99
You save 82%!

Shimano FD-M9025 E2 Type XTR Double Derailleur - 2 x 11 Speed

Shimano FD-M9025 E2 Type XTR Double Derailleur
2 x 11 Speed

Closeout
Overstock Item From: $9.99
MSRP: $93.99
You save 89%!

Shimano FD-M9100 E2 Type XTR Double Derailleur - 2 x 12 Speed Side Swing

Shimano FD-M9100 E2 Type XTR Double Derailleur
2 x 12 Speed Side Swing
From: $129.99

Shimano Electronic Front Derailleurs

Shimano FD-M8070 XT Di2 Front Derailleur - 2 x 11 Speed

Shimano FD-M8070 XT Di2 Front Derailleur
2 x 11 Speed

Closeout
From: $49.99
MSRP: $199.99
You save 75%!

Shimano FD-M9050 XTR Di2 Front Derailleur - 3 x 11 Speed

Shimano FD-M9050 XTR Di2 Front Derailleur
3 x 11 Speed
From: $399.99
MSRP: $464.99
You save 14%!

Shimano FD-M9070 XTR Di2 Front Derailleur - 2 x 11 Speed

Shimano FD-M9070 XTR Di2 Front Derailleur
2 x 11 Speed

Closeout
From: $99.99
MSRP: $389.99
You save 74%!

Shimano Electronic Rear Derailleurs

Shimano RD-M8150-11 XT STEPS Di2 Rear Derailleur - 11 Speed

Shimano RD-M8150-11 XT STEPS Di2 Rear Derailleur
11 Speed
From: $374.99

Shimano RD-M8150-12 XT STEPS Di2 Rear Derailleur - 12 Speed

Shimano RD-M8150-12 XT STEPS Di2 Rear Derailleur
12 Speed
From: $374.99

Shimano RD-U6050-10 STEPS Di2 Rear Derailleur

Shimano RD-U6050-10 STEPS Di2 Rear Derailleur
From: $154.99

Shimano RD-U6070-11 STEPS Di2 Rear Derailleur

Shimano RD-U6070-11 STEPS Di2 Rear Derailleur
From: $204.99

Shimano RD-M8050 XT Di2 Rear Derailleur - 11 Speed

Shimano RD-M8050 XT Di2 Rear Derailleur
11 Speed

Closeout
From: $199.99
MSRP: $338.99
You save 41%!

Shimano RD-M9050 XTR Di2 Rear Derailleur - 11 Speed

Shimano RD-M9050 XTR Di2 Rear Derailleur
11 Speed
From: $719.99

Shimano High Clamp Front Derailleur

Shimano FD-M371 Altus Triple Front Derailleur - 3 x 9 Speed

Shimano FD-M371 Altus Triple Front Derailleur
3 x 9 Speed
From: $21.99

Shimano FD-M6000-H Deore Triple Front Derailleur - 3 x 10 Speed Side Swing

Shimano FD-M6000-H Deore Triple Front Derailleur
3 x 10 Speed Side Swing
From: $35.00
MSRP: $42.99
You save 19%!

Shimano FD-M7020 SLX Double Front Derailleur - 2 x 11 Speed Side Swing

Shimano FD-M7020 SLX Double Front Derailleur
2 x 11 Speed Side Swing

Closeout
From: $9.99
MSRP: $30.99
You save 68%!

Shimano FD-M8020 XT Double Front Derailleur - 2 x 11 Speed Side Swing

Shimano FD-M8020 XT Double Front Derailleur
2 x 11 Speed Side Swing
From: $14.99
MSRP: $37.99
You save 61%!

Shimano FD-M8025 XT Double Front Derailleur - 2 x 11 Speed

Shimano FD-M8025 XT Double Front Derailleur
2 x 11 Speed

Closeout
From: $44.99

Shimano FD-M9020 XTR Double Front Derailleur - 2 x 11 Speed Side Swing

Shimano FD-M9020 XTR Double Front Derailleur
2 x 11 Speed Side Swing

Closeout
Overstock Item From: $59.99
MSRP: $124.99
You save 52%!

Shimano Low Clamp Front Derailleur

Shimano FD-U4000 CUES Double Front Derailleur - 2 x 9/10 Speed

Shimano FD-U4000 CUES Double Front Derailleur
2 x 9/10 Speed
From: $21.99

Shimano FD-U4010 CUES Double Front Derailleur - 2 x 9 Speed

Shimano FD-U4010 CUES Double Front Derailleur
2 x 9 Speed
From: $22.99

Shimano FD-U6010 CUES Double Front Derailleur - 2 x 10/11 Speed

Shimano FD-U6010 CUES Double Front Derailleur
2 x 10/11 Speed
From: $38.99

Shimano FD-TX800 Tourney TX Triple Frnt Derailleur - 3 x 7/8 Speed

Shimano FD-TX800 Tourney TX Triple Frnt Derailleur
3 x 7/8 Speed
From: $13.99

Shimano FD-M6020-L Deore Double Front Derailleur - 2 x 10 Speed Side Swing

Shimano FD-M6020-L Deore Double Front Derailleur
2 x 10 Speed Side Swing
From: $14.99
MSRP: $39.99
You save 63%!

Shimano FD-M8020 XT Double Front Derailleur - 2 x 11 Speed Side Swing

Shimano FD-M8020 XT Double Front Derailleur
2 x 11 Speed Side Swing
From: $29.99
MSRP: $43.99
You save 32%!

Shimano FD-M8100 XT Double Front Derailleur - 2 x 12 Speed Side Swing

Shimano FD-M8100 XT Double Front Derailleur
2 x 12 Speed Side Swing
From: $46.99

Shimano Mid Clamp Front Derailleur

Shimano FD-M4100-M Deore Double Front Derailleur - 2 x 10 Speed Side Swing

Shimano FD-M4100-M Deore Double Front Derailleur
2 x 10 Speed Side Swing
From: $36.99

Shimano FD-U4000-M CUES Double Front Derailleur - 2 x 9/10 Speed Side Swing

Shimano FD-U4000-M CUES Double Front Derailleur
2 x 9/10 Speed Side Swing
From: $29.99

Shimano FD-U6000-M CUES Double Front Derailleur - 2 x 10/11 Speed Side Swing

Shimano FD-U6000-M CUES Double Front Derailleur
2 x 10/11 Speed Side Swing
From: $34.99

Shimano FD-M5100-M Deore Double Front Derailleur - 2 x 11 Speed Side Swing

Shimano FD-M5100-M Deore Double Front Derailleur
2 x 11 Speed Side Swing
From: $39.99

Shimano FD-M6000-M Deore Triple Front Derailleur - 3 x 10 Speed Side Swing

Shimano FD-M6000-M Deore Triple Front Derailleur
3 x 10 Speed Side Swing
From: $36.00

Shimano FD-M9100-M XTR Double Front Derailleur - 2 x 12 Speed Side Swing

Shimano FD-M9100-M XTR Double Front Derailleur
2 x 12 Speed Side Swing
From: $129.99

Shimano Rear Derailleurs

Shimano RD-TY18 Rear Derailleur - 6 Speed

Shimano RD-TY18 Rear Derailleur
6 Speed

Closeout
From: $13.99

Shimano RD-U2000 ESSA Rear Derailleur - 8 Speed

Shimano RD-U2000 ESSA Rear Derailleur
8 Speed
From: $43.99

Shimano RD-U3020 CUES LINKGLIDE Rear Derailleur - 9 Speed

Shimano RD-U3020 CUES LINKGLIDE Rear Derailleur
9 Speed
From: $31.99

Shimano RD-TY300 Tourney Rear Derailleur - 6/7 Speed

Shimano RD-TY300 Tourney Rear Derailleur
6/7 Speed
From: $17.00

Shimano RD-U4000 CUES LINKGLIDE Rear Derailleur - 9 Speed

Shimano RD-U4000 CUES LINKGLIDE Rear Derailleur
9 Speed
From: $52.99

Shimano RD-TX800 Tourney TX Rear Derailleurs - 7/8 Speed

Shimano RD-TX800 Tourney TX Rear Derailleurs
7/8 Speed
From: $14.99
MSRP: $18.99
You save 21%!

Shimano RD-U4020 CUES LINKGLIDE Rear Derailleur - 9 Speed

Shimano RD-U4020 CUES LINKGLIDE Rear Derailleur
9 Speed
From: $42.99

Shimano RD-M310 Altus Rear Derailleur - 7/8 Speed

Shimano RD-M310 Altus Rear Derailleur
7/8 Speed
From: $17.99
MSRP: $27.99
You save 36%!

1 Review

Shimano RD-U6000 CUES LINKGLIDE Rear Derailleur - 10/11-Speed

Shimano RD-U6000 CUES LINKGLIDE Rear Derailleur
10/11-Speed
From: $69.99

Shimano RD-M360 Acera Rear Derailleur - 8 Speed

Shimano RD-M360 Acera Rear Derailleur
8 Speed
From: $23.99
MSRP: $32.99
You save 27%!

Shimano RD-U6020 CUES LINKGLIDE Rear Derailleur - 10 Speed

Shimano RD-U6020 CUES LINKGLIDE Rear Derailleur
10 Speed
From: $54.99

Shimano RD-M3020 Acera Rear Derailleur - 7/8 Speed

Shimano RD-M3020 Acera Rear Derailleur
7/8 Speed
From: $19.99
MSRP: $33.99
You save 41%!

Shimano RD-U6020 CUES LINKGLIDE Rear Derailleur - 11 Speed

Shimano RD-U6020 CUES LINKGLIDE Rear Derailleur
11 Speed
From: $65.99

Shimano RD-M662 SLX Rear Derailler - 9 Speed

Shimano RD-M662 SLX Rear Derailler
9 Speed
From: $71.99
MSRP: $89.99
You save 20%!

1 Review

Shimano RD-T3000 Acera Rear Derailleur - 9 Speed

Shimano RD-T3000 Acera Rear Derailleur
9 Speed
From: $21.99
MSRP: $39.99
You save 45%!

Available in Black or Silver

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