R10 Rear Derailleur 10 Speed Medium Cage

R10 rear derailleurs feature forged and CNC machined construction, pairing durability with finish quality. Compatibility with Shimano road products means you can mix and match to your heart’s content.

Features

  • Lightweight aluminium construction

Specifications

  • Group: R-Series, R10

  • Speed: 10-Speed

  • Cage Length: Medium Cage

  • Max Sproket: 30-34T

 

Microshift/Ison Part Numbers

  • RD-R51M - GRMSR51M
MicroSHIFT
Microshift R10 Rear Derailleur 10 Speed Medium Cage
Microshift R10 Rear Derailleur 10 Speed Medium Cage
Click image to enlarge
Description Colour Size Wt(g) Part No. Stock Lvl Unit RRP Pack Qty
RD-R51M R10 Rr Mech, 10sp, Med Cage, Min Sprocket 11T, Max 34T, Capacity 39T - Shimano Road compatibleBlack10sp GRMSR51M
ETA: September 2026
£44.99Each 
  • Good stock levels
  • Low stock levels, Qtys may not be available
  • +24h Components are available, add 24/48hrs for assembly
  • Special Order Currently non-stock item, contact us for info
  • Out of stock. Expected availability date will be displayed if known.
  • Discontinued. This product is no longer available.
  • M Mixed Quantity discount available
Description Colour Size Wt(g) Part No. Stock Lvl Unit RRP Pack Qty
RD-R51M R10 Rr Mech, 10sp, Med Cage, Min Sprocket 11T, Max 34T, Capacity 39T - Shimano Road compatibleBlack10sp GRMSR51M
ETA: September 2026
£44.99Each 
  • Good stock levels
  • Low stock levels, Qtys may not be available
  • +24h Components are available, add 24/48hrs for assembly
  • Special Order Currently non-stock item, contact us for info
  • Out of stock. Expected availability date will be displayed if known.
  • Discontinued. This product is no longer available.
  • M Mixed Quantity discount available