DebonAir air spring makes for one of the most plush air sprung shocks ever Features Rapid Recovery that allows the shock to recover more quickly between hits Hybrid of VividAir and Monarch technologies for a lightweight All-Mountain piggyback air shock: 325g SoloAir spring design optimized for supple yet responsive bump performance Hard anodized, 28mm aluminum bodyshaft with sag gradients and a 9mm aluminum damper-shaft, plus a high-volume (HV) air canister on select applications 1piece piggyback/head oil damping system with IFP oil/air separation, plus external dual-flow compression and ending/beginning-stroke rebound adjustability Wide range adjustable (medium) compression tune fits most leverage ratio frame designs 1/2" mounting hardware sold separately (2 sets required per shock)