SRAM 1x11 X-Sync Jockey Wheels - Blackbox Ceramic Bearings PDP|Colour brass or copper the 37mm

brass or copper the 37mm diameter tops are very easy on the eye

XL-XXL EPS

so they are the only oval chainrings on the market that are 100-percent optimized for Eagle

Designed and built with the specific needs of the bike mechanic in mind

SRAM 1x11 X-Sync Jockey Wheels - Blackbox Ceramic Bearings PDP|Colour brass or copper the 37mmWorn jockey wheels are often overlooked during annual maintenance. To ensure your drivetrain is operating smoothly, replace your derailleur's jockey wheels when they look worn. Standard and ceramic bearings are available for purchase. Ceramic bearings include a 10ml syringe and grease optimised for ceramic bearings. These will offer reduced friction, decreased weight and added durability. Compatible with SRAM 1x11 X Sync drivetrains.