Description: Single speed converter chain tensioner, great for mountain terrain bicycle. Floating pulley and spring adjust for perfect chain tension. Made of high grade aluminum alloy material, durable in use. It is a perfect replacement for your old or damage one. Light weight and easy to install. Specification: Material: aluminium alloy Color: red, black, silver, 2pcs black Size: about 20x7mm Packge Included (optional): 1. 1pc x bicycle tensioner 2. 2pcs xbicycle tensioners Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-2 cm differences due to manual measurement.
