RockShox Lyrik D1+ DebonAir+ Buttercup Air Spring Upgrade Kit - 140 mm Lyrik D1+ 2023+ J-Bend – Extremely long-lasting

– Extremely long-lasting

balanced feel for enhanced fluidity

Secondary air spring works in conjuction with coil spring to control shock progression

ONLY Compatible with Tiagra 4700 when using Tanpan 11 and corresponding 11-speed derailleur

RockShox Lyrik D1+ DebonAir+ Buttercup Air Spring Upgrade Kit - 140 mm Lyrik D1+ 2023+ J-Bend – Extremely long-lastingRockShox Lyrik D1 DebonAir+ Buttercup Air Spring Assembly Upgrade Kit 140 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.