The pro-mechanics favorite chainholder and used by proteams like: Omega-Pharma-Quick-Step, Astana, Lotto Belisol, Tinkoff-Saxo, Moviestar, Garmin Sharp, Belkin, Giant-Shimano, AG2R, og FDJ, to name a few.

Real easy to use, as your just place it by the dropout (watch the video).

Make sure that the chain does not rub against the frame.

Also ideal for transportation.

Can be used with all chains and all bike and is truly a "must have" for every rider/mechanic/commuter.