Lezyne's Classic Chain Drive is the ultimate, shop-quality chain breaker tool. It consists of an incredibly robust steel body, ergonomic driver and classic wood handle. The innovative and adjustable design works with any style of chain and features a hardened steel breaker pin with extra pin stored in handle. The Classic Chain Drive's design is elegant, yet functional. It is suitable for 8,9,10 and 11 speed chains and weighs 282g.