Total Volume 3L

and you'll have no worries

They work so well due to the MaxiFlow Air channels in the impact foam

Pros: Will help keep your helmet fitting correctly and comfortable

Compatible with Shimano Mountain Hollowtech II and Race Face X-Type

SRAM XX1/X01/GX Eagle Rear Derailleur Jockey Wheels - Pulley Wheel - Suit XX1/X01/GX Eagle/AXS PLP|Colour Total Volume 3LThe SRAM XX1 X01 GX Eagle Rear Derailleur Jockey Wheel kit is composed of a 12 teeth upper wheel and a 14 teeth lower wheel with X Sync profile. It's compatible with SRAM 12 speed XX1 Eagle, X01 Eagle, and AXS rear derailleurs. Note: Jockey wheels must be installed in correct positions: lower wheel is larger than the upper wheel.