RockShox SoloAir Travel Adjustment Air Shaft Description The RockShoxSoloAir Travel Adjustment Air Shaft is a factory replacement part for the maintenance and upkeep of your fork. This air shaft can also be used to adjust the amount of travel on select forks. Features: Air piston shaft assembly only (Minimum required part to adjust travel on 2013+ Reba and Sid-B SoloAir forks) Does not include top cap, top out bumper, negative air assembly, wavy washer or stanchion c-clip Not compatible with Dual Air forks Specifications: Wheel Size: 27.5 | 29" Suspension Travel: 90mm Compatibility: Reba | SID B