ACER Racing presents our 11 tooth Carbon Fiber Jockey Wheels with Ceramic Ball Bearings for Shimano and SRAM derailleurs. The gears are made of super stiff and lightweight ACERFiber Carbon Fiber and we include our World Champion ACER Racing Ceramic Nitride Pro Series ceramic ball bearings with dual seals in each jockey wheel. Lightweight removable red aluminum covers protect the ceramic ball bearings further from the elements while giving a more aggressive appearance.

• ACER Racing presents our 11 tooth Carbon Fiber Jockey Wheels with Ceramic Ball Bearings for Shimano and SRAM derailleurs.
• The gears are made of super stiff and lightweight
• ACERFiber Carbon Fiber and we include our World Champion ACER Racing Ceramic Nitride Pro Series ceramic ball bearings with dual seals in each jockey wheel.
• Lightweight removable red aluminum covers protect the ceramic ball bearings further from the elements while giving a more aggressive appearance.

ACER Racing presents our 11 tooth Carbon Fiber Jockey Wheels with Ceramic Ball Bearings for Shimano and SRAM derailleurs.imported