Short Cage Rear Derailleur

Short Cage Rear Derailleur


Shimano's DURA-ACE RD-9070 rear derailleur is available in the short cage version only. Its **top sprocket max **is 14T, the min top sprocket size is 11T. The low sprocket max is 28T and the min is 23T. It has a **max front difference **of 16T.

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When paired with 9070 / 6870 or newer components and the BT-DN110 battery, this derailleur supports synchronized shift.


  • Model code: RD-9070-SS
  • Series: DURA-ACE (9070)
  • Weight: 217g
  • Speeds: 11
  • SD50 ports: 1
  • Max front difference: 16T
  • Total capacity: 33T
  • Low sprocket max: 28T
  • Low sprocket min: 23T
  • Top sprocket min: 11T
  • Top sprocket max: 14T
  • Pulley teeth: 11
  • Mount: Conventional mount
  • RD type: Non-shadow RD
  • Clutch: No

Related components

View the Dual Control Lever (ST-9070)


Dual Control Lever

View the Front Derailleur (FD-9070-F)


Front Derailleur

View the Below-the-stem Junction A (SM-EW90-A, SM-EW90-B)

SM-EW90-A, SM-EW90-B

Below-the-stem Junction A

View the Internal Battery (BT-DN110)


Internal Battery

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