Add some subtle bling to your bike with some glossy red pulleys. The ABEC full ceramic bearings are smooth and long-lasting. The quality of the ABEC 5 bearings is Grade 3, one of the best. Grade 3 means that the ball has a 3/1,000,000” tolerance of sphericity which means it is extremely round, which means less friction and that the Grade 3 balls roll a much longer duration than others. These pulleys have seals that are for road use only.
Fits: Dura Ace 9100, Ultegra & 105 11 Speed derailleurs
Bearing: Grade 3, ABEC 5 Full Ceramic Bearings
Note: These pulleys are for road use only