Bike Chain Tensioner Adjuster For Fixed Gear Single Speed Track

Bike Chain Tensioner Adjuster For Fixed Gear Single Speed Track brand new and high quality Features: 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 Specifications: Material:Steel Size:5.2cmx 2.0cm(2.05''x 0.79'') Color: Silver Quantity: 1Pc　 Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!