RockShox ZEB A1+ DebonAir+ Buttercup Air Spring Upgrade Kit - 170 mm ZEB A1+ MFPN=8022673 Compatible with all bicycle chains

Compatible with all bicycle chains

Front Derailleur: Shimano GRX FD-RX400-F

This is a spider for use with the Race Face Cinch system

Tech Control Wrap+ provides a locked-in feel that delivers precise control

RockShox ZEB A1+ DebonAir+ Buttercup Air Spring Upgrade Kit - 170 mm ZEB A1+ MFPN=8022673 Compatible with all bicycle chainsRockShox ZEB A1+ DebonAir+ Buttercup Air Spring Assembly Upgrade Kit 170 mm. The new DebonAir+ is built to strike the perfect balance of what riders really want: butter like small bump feel increased air volume to add support throughout the travel and higher overall ride height for more confidence when things get steep.