It spins freely in your fingers and doesn t waste energy in the real.
Ceramic bearing rear derailleur.
Rear derailleur alluminium pulleys ceramic bearings iscriviti.
Full ceramic bearings are standard on aita ceramic jockey wheel pulley of the rear derailleur.
Depending on the gear ratio pulleys turn very fast and therefore quality ceramic bearings are very important.
Japan new zealand.
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Kogel s latest ceramic oversized derailleur pulleys take a fresh look at pulley design maximizing pulley size and improving efficiency for any derailleur.
Ceramic bearings have to compensate for a lot of friction.
Even better you can get them at a price that lets you upgrade other drivetrain parts like perhaps a new ceramic bottom bracket.
Full ceramic bearing jockey wheels pulleys for shimano sram 10 speed 11 speed rear derailleur system.
Buy garbaruk derailleur pulleys with ceramic bearings and get free shipping.