High-performance shock absorbers with high-strength alloy steel housing, nitrogen-filled aluminum compensator reservoirs, hydraulic damping and 12mm steel shock rods. They feature 12-stage adjustable compression and adjustable spring preload. The adjustable spring preload on the DeLuxe WMT22V2 shocks has a hydraulic mechanism that allows easy adjustment with a common box wrench or using the optional tool. Bitubo Piggy Back shocks for V-Rod are adjustable up to 0.400" (10 mm) in length. Sold in pairs.