Function: This chain adjuster can change multi-speed bikes into single speed bike. Easy to install, installed in the frame claw screw hole.
Universal: It can fit various sizes of gear, and prevent chain from skidding out from the crank.
Fashion Appearance: The black and purple color will make sure that this bike chain tensioner can be combined with your bike of any other color. Nice bike accessory for cycling lovers.
Wide Applications: This single speed bike adjuster suitable for folding bike with 11T or 13T derailleur. Suitable for MTB, road racing, fixie bikes, single speed bikes, bmx's, bikes.
Material: Made of aluminum alloy material, light weight does not put an extra burden on the bicycle.
