air spring upgrade kit debonair c1 170mm includes debon air assembly silver seal head zeb a1RockShox Air Spring Upgrade Kit DebonAir C1 170mm is an upgrade kit for ZEB A1+ (2021+) forks, providing smoother suspension action, better bump response, and a more stable ride position . The new DebonAir C1 design increases support throughout the entire travel range and improves control on technical trails. Product features: Compatibility Fits all RockShox ZEB A1+ models (2021+) New DebonAir C1 air spring better response to bumps and improved