Features: 1.Wide Application: Shock absorber with 420mm mounting hole center distance is universal for most 150cc 250cc Dirt Bike ATV QUAD GO kart Scooter. 2.Adjustable Springs: Suspension shock absorber with adjustable damping, you can adjust the strength that best suits your needs to cope with different road conditions. 3.Stable Performance: Suspension shock damper is able to provide a smoother ride and better overall damping management for improved ride comfort. 4.Advanced Material: Suspension shock damper is made of premium materials, which is hardness, rustproof, waterproof, sturdy and durable and has a long service life. 5.Ideal Replacement: Fine craftsmanship, this is your ideal option and replacement for your original damaged and old shock absorber, perfect for your car. Specification: Item Type: Shock Absorber Material: High strength steel alloy + high performance spring Features: With 5 steps adjustable damping, you can adjust it according to your load (please note that you must use the adjusting tool, otherwise it is easy to cause finger loss) Mounting Hole Core Distance: Approx. 420mm/16.5in Total Length of Shock Absorber: Approx. 450mm/17.7in Inner Diameter of Hole Core: Approx. 10mm/0.4in Spring Diameter: Approx. 9mm/0.4in Mounting Hole Thickness: Approx. 20mm/0.8in Application: For replacement, refurbishment, upgrading, modification, decoration of the original shock absorber, etc. The new shock absorber provides a smoother ride and better overall damping management to improve ride comfort. Fitment: Standard 420mm hole core distance, universal for most 150cc 250cc Dirt Bike ATV QUAD GO kart Scooter.