Campagnolo potenza 11sp short cage rear mechthe potenza 11 speed rear derailleur incorporates top end performance and technology to make it one of the best performing front derailleurs on the market please note that the short cage mech will not work with the 11 32 cassette features upper body in ultra light techno polymer reinforced with glass fibre multi shifting technology allows you to upshift up to 3 gears at a time embrace technology for better drivetrain efficiency weight 200gbuy campag