11" FASTACE BF-A01AR / BS-35AR Air/Oil/Coil Spring (1000 lbs/Inch) HIGH QUALITY ADJUSTABLE REAR ALUMINUM REAR SHOCK FOR 280 XR50 CRF50 XR CRF 50 70 PIT BIKE Brand New Light weight, ergonomic, adjustable rebound, easy turn adjustable spring pre-load, nitrogen-charged, oil damping with internal floating piston, service friendly This shock is ideal for bikes that have the stock style extended swingarms. The shock will double your travel and raise your seat height above 2". This is a quality rear shock and comes with AL6061 T6 forged shock body, easy-turn spring preload nut, oil damping with floating piston, preload and rebound adjustment. Upgrade for stock and replacement for SDG and other pit bikes, it is ideal for bikes that have the stock style extended swingarms. Recommended for riders 150 lbs and up. This is top of the line Shock made from reputable FASTACE usually with over 1000 lb. capacity, not those $30 mickey mouse shocks others selling. Specifications: Aluminum Alloy Spring is Adjustable HD Steel End Piece w/ rubber-metal bushings Length: 11" or 280mm eye to eye length This is ideal shock for pit bike, ATV, scooter, beach buggy and Yamaha 4 wheel golf cart.