Campagnolo potenza 11 speed medium 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 it is now also incredibly versatile thanks to the fact that it is offered in a medium cage that works flawlessly with the new 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 emb