aluminum-chain-tensioner-for-single-speed-sprockets
aluminum-chain-tensioner-for-single-speed-sprockets, The M-Wave Alloy Chain Tensioner for Single Speed bikes keeps your chain tight and frame safe from damage. The tensioner can be adjusted to match chain line and angle. Great for single speed conversions on bikes with vertical dropouts.Alloy68 mm arm lengthFor single speed and fixed gearBlackIn PE bag