Cyclingceramic jockey wheels sram 10 11s silver

these sram 10 11 speed rollers allow for better power transmission and save your energy they have been designed to offer a lightweight package and thanks to the design of the seals allow optimal protection aluminum manufacture and hand assembly in our workshop guarantee a longer life and high performance compared to standard rollers the upgrade of your sram derailleur with cyclingceramic rollers works both on road and mountain bike a test conducted by friction facts shows a decrease of 0 107w against the sram rival force ie 73 less friction features durability 3 to 5 times longer than conventional bearings ceramic beads 58 lighter 121 stronger and 68 harder than steel balls grade 3 ceramic beads polished for more than 45 days for almost non existent friction kit contents 2 x pulley oil spacers installation instructions stickers reference ccpwsrams ...