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Mountain Bike Derailleurs

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Not sure what sized bike is best?

Answer a few short questions and we'll make a recommendation on which size is best for you.

SRAM

SRAM GX Eagle Lunar 12 Speed Derailleur

Regular price $225.00 Full price
Sale price $225.00
Club price
Regular price $232.00 Full price

Shimano

Shimano Deore Shadow+ RD-M6100 12-Speed Rear Derailleur Long Cage 51T Max

Regular price $89.00 Full price
Sale price $89.00
Club price
Regular price $100.99 Full price

Shimano

Shimano Deore XT M8100 12 Speed Rear Derailleur

Regular price $199.00 Full price
Sale price $199.00
Club price
Regular price $209.00 Full price

Shimano

Shimano SLX Shadow Plus 12 Speed 51T Long Cage Rear Derailleur

Regular price $109.00 Full price
Sale price $109.00
Club price
Regular price $119.95 Full price

Shimano

Shimano Cues RD-U4000 Shadow 9-Speed Rear Derailleur 46T

Regular price $68.00 Full price
Sale price $68.00
Club price
Regular price $71.99 Full price

Shimano

Shimano Deore Shadow + M5120 10/11 Speed Derailleur

Regular price $79.00 Full price
Sale price $79.00
Club price
Regular price $89.99 Full price

Shimano

Shimano Cues Shadow RD-U6000 Rear Derailleur 10/11-Speed Medium

Regular price $85.00 Full price
Sale price $85.00
Club price
Regular price $89.99 Full price

Shimano

Shimano Deore Shadow+ RD-M5100 11-Speed Rear Derailleur Long Cage 51T Max

Regular price $72.00 Full price
Sale price $72.00
Club price
Regular price $74.99 Full price

SRAM

Sram X01 Eagle AXS 12 Speed Rear Derailleur Max 52T - Lunar (Battery Not Included)

Regular price $899.00 Full price
Sale price $899.00
Club price
Regular price $925.00 Full price

Shimano

Shimano Alivio Shadow M3100 9 Speed Rear Derailleur

Regular price $60.00 Full price
Sale price $60.00
Club price
Regular price $61.99 Full price

Shimano

Shimano CUES Shadow RD-U8000 Rear Derailleur 11-Speed 50T Max

Regular price $136.00 Full price
Sale price $136.00
Club price
Regular price $143.99 Full price

Shimano

Shimano Altus M370 9 Speed Derailleur

Regular price $39.00 Full price
Sale price $39.00
Club price
Regular price $44.99 Full price
Shimano RD-M8130 XT Shadow+ Rear Derailluer 11-Speed 50T Maximum
17% Off Full Price

Shimano

Shimano RD-M8130 XT Shadow+ Rear Derailluer 11-Speed 50T Maximum

Regular price $165.00 Full price
Sale price $165.00
Club price
Regular price $199.95 Full price

MicroShift

MicroShift ADVENT X RD-M6205AM Medium Cage Rear Derailleur 1x10 Speed 11-48T Black

Regular price $140.86 Full price
Sale price $140.86
Club price
Regular price $154.95 Full price

Shimano

Shimano XTR RD-M9100 Shadow+ 12-Speed Long Cage Rear Derailleur

Regular price $369.00 Full price
Sale price $369.00
Club price
Regular price $399.99 Full price
SRAM NX X-Horizon Type 2.1 11 Speed Long Cage Derailleur
16% Off Full Price

SRAM

SRAM NX X-Horizon Type 2.1 11 Speed Long Cage Derailleur

Regular price $125.00 Full price
Sale price $125.00
Club price
Regular price $150.00 Full price

Shimano

Shimano RD-M9100 XTR Shadow+ Rear Derailleur 12-Speed

Regular price $369.00 Full price
Sale price $369.00
Club price
Regular price $399.99 Full price

Shimano

Shimano RD-U3020 CUES Rear Derailleur 9 Speed Shadow Long 36T Max

Regular price $42.00 Full price
Sale price $42.00
Club price
Regular price $44.99 Full price

MicroShift

MicroShift ADVENT RD-M6195L Long Cage Rear Derailleur 2x9 Speed

Regular price $116.00 Full price
Sale price $116.00
Club price
Regular price $119.95 Full price

MicroShift

MicroShift Advent M6195M Rear Derailleur 9 Speed

Regular price $100.00 Full price
Sale price $100.00
Club price
Regular price $104.99 Full price
Shimano XT Shadow RD-M786 10 Speed Medium Cage Derailleur
19% Off Full Price

Shimano

Shimano XT Shadow RD-M786 10 Speed Medium Cage Derailleur

Regular price $129.00 Full price
Sale price $129.00
Club price
Regular price $159.99 Full price

SRAM

SRAM RD NX Eagle Rear Derailleur

Regular price $175.00 Full price
Sale price $175.00
Club price
Regular price $198.00 Full price

Shimano

Shimano RD-U4020 CUES Rear Derailleur 9 Speed Shadow Long 36T Max

Regular price $55.00 Full price
Sale price $55.00
Club price
Regular price $57.99 Full price

MicroShift

MicroShift Advent X Rear Derailleur 1x10 Speed Medium Cage w/Clutch 48T Steel

Regular price $145.00 Full price
Sale price $145.00
Club price
Regular price $151.95 Full price

Shimano

Shimano XT Shadow M8000 11 Speed Medium Cage Derailleur

Regular price $159.00 Full price
Sale price $159.00
Club price
Regular price $184.99 Full price

Shimano

Shimano RD-M7000 SLX Shadow+ Medium Cage 2x11 Speed Rear Derailleur

Regular price $119.00 Full price
Sale price $119.00
Club price
Regular price $129.99 Full price

Shimano

Shimano XT Shadow+ RD-M8000 11 Speed Rear Derailleur

Regular price $159.00 Full price
Sale price $159.00
Club price
Regular price $179.99 Full price

SRAM

SRAM GX Type 2.1 11 Speed Long Cage Derailleur

Regular price $185.00 Full price
Sale price $185.00
Club price
Regular price $211.00 Full price
SRAM SX Eagle A1 12 Speed Derailleur
16% Off Full Price

SRAM

SRAM SX Eagle A1 12 Speed Derailleur

Regular price $129.00 Full price
Sale price $129.00
Club price
Regular price $155.00 Full price
Shimano RD-M6000 Deore Rear Derailleur Shadow+ 3x10 Long
17% Off Full Price

Shimano

Shimano RD-M6000 Deore Rear Derailleur Shadow+ 3x10 Long

Regular price $99.00 Full price
Sale price $99.00
Club price
Regular price $119.99 Full price
SRAM GX Type 2.1 10 Speed Long Cage Derailleur
17% Off Full Price

SRAM

SRAM GX Type 2.1 10 Speed Long Cage Derailleur

Regular price $99.00 Full price
Sale price $99.00
Club price
Regular price $119.99 Full price

SRAM

SRAM SX Eagle 12 speed Rear Derailleur Black

Regular price $119.00 Full price
Sale price $119.00
Club price
Regular price $139.95 Full price

MicroShift

MicroShift Mezzo Long Cage 8/9 Speed Rear Derailleur

Regular price $30.00 Full price
Sale price $30.00
Club price
Regular price $34.99 Full price

MicroShift

MicroShift Long Cage Rear Derailleur 2/3 x 7/8/9 Speed Max 36T

Regular price $30.80 Full price
Sale price $30.80
Club price
Regular price $32.99 Full price

MicroShift

MicroShift MEZZO FD-M20 Front Derailleur 3x7/8 Speed 42T-34T-24T

Regular price $19.00 Full price
Sale price $19.00
Club price
Regular price $19.95 Full price
Shimano Acera M360 7/8 Speed Derailleur Black
17% Off Full Price

Shimano

Shimano Acera M360 7/8 Speed Derailleur Black

Regular price $99.00 Full price
Sale price $99.00
Club price
Regular price $119.99 Full price

Find Your Size

Step 1: Measure your height

  • Take off your shoes
  • Stand with your back straight against a wall
  • Balance a book on your head to mark your height on the wall
  • Measure your height by the distance from the floor to the mark
cm

Find Your Size

Step 2: Adjust your inseam

  • Based on your height, we’ve calculated a starting point.
  • You can measure your inseam by tucking a book between your legs so there is pressure but it isn’t uncomfortable.
  • Inseam typically falls with 5cm of the average.
cm

Find Your Size

Your results

For the we suggest the following size.

More comfort More speed
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Inseam: --
Adjusted Height: --

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