RockShox Boxxer D1 DebonAir+ w/ ButterCup Air Spring Upgrade Kit - 180mm, Boxxer 38mm (2024+)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. This upgrade is for those who have 2023+ ZEB, Lyrik and Pike Select+ or Select models, or pre 2023 model Zeb forks. By focusing on refining the shape of the spring curve, RockShox created an air spring thats