Description Color Black Silver BlueMaterial Aluminum with rubber chain tensionerSize Like the picture show The chain tensioner is best for your chopper project This tensioner automatically adjusts while you ride via a very powerful torsion spring in which the tension is fully adjustable Fitment Universal fit most motorcycle Note 1 Please measure Motorcycle frame own clip tube s specifications before bidding to get the most appropriate spec tensioner 2 Please allow 0 5 1 inch difference due to manual measurement 1 inch 2 54cm 3 The color of the actual items may slightly different from the listing images due to different computer screen thanks for your understanding 4 No Instructions Included Professional Installation Is Highly Recommended Package Included 1 X Chain Tensioner