SE Bikes Alloy Adjustable Chain Tensioner 2.0 Blue for 3/8″ Axle

CHAIN TENSION ADJ SE BIKES 2.0 ALY 3/8 BUFeatures-Genuine SE Bikes chain tensioners-Improved design and function-Easily adjusts to take up chain slackItem Specifications-Material:Alloy-Size:3/8`-Color:Blue Assembled Product Dimensions (L x W x H): 4.00 x 4.00 x 1.00 Inches