Cycling Practical Single Speed Track Bicycle Accessories Fixed Gear Bike Chain Tensioner Adjuster

Label:Yes Quantity: 2Pcs Color: Silver Item: Bike Chain Tensioners Material: Steel Size: 5.2cmx 2.0cm(2.05''x 0.79'')

Features: 100% new and high quality This is great because it can prevent chain slack on BMX, children bikes and any single speed bike Used to prevent the rear wheel from slipping forward under pressure For track, BMX, and fixie bikes with rear entry drop outs Package Included: 2Pcs x Chain Tensioners