Folding Bike Chain Tensioner with 11T Pulley

This bike part is a folding bike chain tensioner designed as a rear derailleur tensioner for compatible folding bike setups, helping keep the drivetrain arrangement organized. Made from aluminum alloy, this chain tensioner combines a solid metal construction with a lightweight feel. The 11T chain tensioner uses an 11T pulley wheel, supporting smooth chain guidance as the rear derailleur moves through gear changing action. The threaded-lock design helps secure the tensioner in place, adding a practical mounting design. At 107.3 g, this bike part stays relatively light while still serving its chain tensioner function.