These CeramicSpeed Pulley Wheels put less friction between the power transferred from your legs and the rear wheel. Each pulley wheel is fitted with CeramicSpeed high quality bearings that offer for a more efficient drivetrain.
Better than the standard equipment, these pulley wheels are made of aluminum alloy that is extremely lightweight. Low friction and long lifetime is essential for these pulley wheels.
Suitable for Shimano 11-speed derailleurs.
Included in delivery: 2 pulley wheels with spacers, oil, sticker sheet
Material: pulleys: aluminum
bearings: stainless steel with ceramic balls