Lower the upper bushing and ensure you can push it fully into the lower tube by hand (if you can't you may need to drop the seat a bit more)

It is made from CNC machined alloy so you know its strong

and the latest batch of guides are practically a work of art

It even has a valve core tool on the bottom of the pump in case you need to quickly add some sealant out on the trails

SRAM 1x11 X-Sync Jockey Wheels - Blackbox Ceramic Bearings Envelope Shipping Lower the upper bushing andWorn 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.