RockShox Lyrik D1+ DebonAir+ Buttercup Air Spring Upgrade Kit - 140 mm Lyrik D1+ 2023+ J-Bend High Softshell lace cover with

High Softshell lace cover with fleece liner keeps your feet warm and dry

THE CORE: The core material is the foundation of a roller ski shaft and V2 has tried about every material available including a variety of metal cores

balanced feel for enhanced fluidity

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

The perfect solution when you need something smaller than a 30t on your 104/64 BCD cranks or your 11-speed Shimano XT and SLX 96/64 BCD cranks

RockShox Lyrik D1+ DebonAir+ Buttercup Air Spring Upgrade Kit - 140 mm Lyrik D1+ 2023+ J-Bend High Softshell lace cover withRockShox 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.