Short Cage Rear Derailleur

RD-6870-SS - Short Cage Rear Derailleur image

The Shimano RD-6870-SS is their short cage rear derailleur for the 6870 series. It supports a max front difference of 16T, a low sprocket minimum of 23T and a **low sprocket maximum **of 28T. The top sprocket maximum is 14T and the minimum is 11T. It has a total capacity of 33T.

It also features Shimano's Crash Protection Mode - this prevents shifting after a crash to make sure the rear derailleur is damaged any further. To restore shifting functionality have a look at our FAQ I had a small crash and my rear derailleur stopped working. What happened?

Details & Specifications

Shimano model number:RD-6870-SS
Weight:257 g
E-Tube ports:1
E-Tube Port type:SD50
Type:Rear Derailleur
Component series:Ultegra 6870 (Road)
Downloads:Ultegra 6870 Dealer Manual
Di2 Rear Derailleur User Manual

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