4Pcs Bike Chain Tensioner Adjuster For Fixed Gear Single Speed Track Bicycle

100 brand 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 Specifications: Material:Steel Color: Silver Quantity: 4pcs Package includes:4pcs x Chain Tensioners(without retail package) note: 1.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.