11 Speed (picture here)12 SpeedPlease select options available from drop down list below.MSRP: 69,00 €Delrin Pulley Campagnolo 11 Speed Artikelnummer: pull-cam-11-del Delrin Pulley Campagnolo 11 SpeedDelrin Pulley Campagnolo 11 speed Full CeramicDelrin Pulley Campagnolo 12 SpeedDelrin Pulley Campagnolo 12 speed Full Ceramic Leave this field blank TabInfoThe pulley wheels are the fastest spinning bearings on your bike. An upgrade to ceramic bearing therefore is the most effective upgrade. C-Bear ceramic pulley can be used both for road, cyclocross and MTB. Testimonials Click here to share your C-Bear experience. Q&A Click here to ask a Question about this product.