Model Name:K1-037 Item Height:8cm Item Type:Falling Protection Item Weight:1.2kg Material Type:Aluminum alloy Item Length:35cm Item Width:8cm Progress:CNC Product parameters Name: Motorcycle Rear shock absorber Style: 100% New Brand K1 Origin: Mainland China Quantity: 1 piece.(If you want 1 pair,please buy 2 pieces) Installation hole pitch: 290mm/11.4'',320mm/12.6'' Total length: About 315mm/335mm Installation hole diameter: 10MM(Round)/8MM(Fork) Spring thickness: 7.3MM Color Classification: 5 Colors a s shown. Caliper material: Aluminum alloy Technology: CNC Suitable models: Univesal for most of models which has 290/320mm mouting hole pitch. Warm Tips 1.Please check the size before confirm. 2.The hardness of the spring is adjustable; 3.Spring stroke adjustable 4.Rebound rate is non- adjustable. Size Show Product Show Help More If you have any questions, please contact us in time, we will answer you in time. After-sales service We are all working except for Chinese statutory holidays. If you need help, please contact us in time. Please give us 5 stars Since 2016, Our company had served more than 10,000 customers. Looking forward to your trust, please join our customer base.