COMPATIBILITY: Fits single speed chains (Chain width 1/8” only). Optimised for use with both round and oval shape chainrings.
QUALITY AND DURABLE MATERIAL: Aluminum alloy. Weight 107g. Use 11T Plastic Pulley Wheel to provide smooth chain drive.
CONVENIENCE: Avoid expensive modification doing in the past. This chain tensioner mounts right onto your derailleur hanger to provide a simple, effective and adjustable way to tension a single speed system.
EASY AND SIMPLE ADJUSTMENT: Tighten the bolt and align the chain, making for a superb fit for any situation. No more chain slap with it.