250mm - 330mm Motorcycle Shock Absorber Adjustable Suspension Damper for ATV Go Kart Scooter Dirt Pit Bike,moped scooter Street dirt bike NIU ebikeFeature: 1. Material: Made of high hardness steel, CNC aluminium alloy and high performance springs with Hydraulic Oil and gas, waterproof and wear resistance, for long term durability. 2. Function: The suspension damper will provide a smoother ride and better overall damping management for improved ride comfort. 3. Adjustable Spring: The suspension shock damper with adjustable spring, can adjust the strength that suits you best, to deal with different road conditions. 4. : Mounting hole diameter approximate 10mm/0.39in, hole center distance approximate 250mm - 330mm, spring diameter approximate 12mm 5. Fitment: Fits for most of the Chinese brands ATVs and Go Karts , such as for TaoTao, for Buyang, for Coolsport, for Lifan, for Tank, for SUNL, for Redcat, for Eagle, etc. Specification: Item Type:ShockAbsorber Material: CNC aluminum alloy, steel, spring Pitch Installation Hole Center to Center Length: 250mm - 330mm Hole Center Inner Diameter: Approx. 10mm/0.39in Spring Diameter: Approx. 12mm/0.47in Mounting Hole Thickness: Approx. 25mm Spring: Adjustable (Be sure to use a adjustment tool) Package List: 1 x ShockAbsorber