Features: 1.Wide Application: The shock absorber is wide applicable 50cc 110cc 125cc 140cc 150cc 160cc PIT QUAD DIRT BIKE Trail Bike Dirt Bike GO Kart Motorcycle. 2.Function: Provide smoother driving and better overall damping management, improve driving comfort, motorcycle handling and driving safety. 3.Parameters: The mounting hole center distance is 330mm, the total length of is 360mm, the bore core inner diameter is 10mm, and the spring diameter is 8mm. 4.Adjustable Spring: With adjustable damping to adjust the strength that suits you best, and can be adjusted to cope with different road conditions. 5.High Strength Material: Made of high strength CNC aluminum alloy, and high performance spring, the shock damper is wear proof, impact resistant and durable. Specification: Item Type: 330mm Shock Absorber Material: CNC aluminum alloy + high performance spring Features: With adjustable damping, you can adjust it according to your load (Please note that you must use the adjustment tool, otherwise it is easy to cause finger loss) Mounting Hole Center Distance: Approx. 330mm/12.99in Total Length Of Shock Absorber: Approx. 360mm/14.17in Inner Diameter Of Hole: Approx. 10mm/0.39in Spring Diameter: Approx. 8mm/0.31in Applicable: Standard 330mm hole core distance, common to most 50cc 110cc 125cc 140cc 150cc 160cc PIT QUAD DIRT BIKE TRAIL BIKE DIRT BIKE GO Kart Motorcycle