Uqezagpa Bicycles Chain Tensioner Aluminum Alloys Bicycles Single Speed Adjuster Converter Folding Bike Chain Guide Bike Protectors

Uqezagpa Bicycles Chain Tensioner Aluminum Alloys Bicycles Single Speed Adjuster Converter Folding Bike Chain Guide Bike Protectors

• Function: can effectively prevents the chain from falling down, and reduce the gear feeling.
• This bike chain tensioner can ensures that the chain reaches great tension, making your pedal operate labor saving.
• Make of Aluminum alloys and stainless steels materials, light in weight and small, easy to installation and use.
• Floating pulleys and spring designs can fit various size of gear, and prevents chain from skidding out from the cranks.
• This single speed bike adjuster is suitable for folding bike with 11T or 13T rear derailleurs.