Harddrive Dyna Monotube Shock 12.5" For Harley Davidson Fld & Fxdls

HardDrive Bazooka rear shocks with RacingBros’ race proven SAV, “Speed Adaptive Valving”, damping system provides superior ride quality regardless of road conditions! Features: Speed Adaptive Valving (SAV) Internal Floating Piston (IFP) stabilizes damping performance One-Piece damping body construction forged from A7075 aluminum Easy set up spring preload cap, no special tool needed