11 speed (picture here)12 speed13 speed EkarPlease select options available from drop down list below.Available in both full and hybrid ceramic bearingsMSRP: 69,00 €Delrin Pulley Campagnolo 11 Speed SKU: pull-cam-11-del Delrin Pulley Campagnolo 11 SpeedDelrin Pulley Campagnolo 11 speed Full CeramicDelrin Pulley Campagnolo 12 SpeedDelrin Pulley Campagnolo 12 speed Full CeramicAluminium Pulley Campagnolo 13 Speed Ekar 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.