The Sentry U-Lock is a lightweight security product awarded a Pedal Cycle SILVER rating by Sold Secure. It features a hardened steel 12mm shackle and a spring release mechanism for ease of use. The universal fitting bracket is compatible with all bike styles, and the vinyl coating protects your frame. Available in two lengths (275mm LK328 and 190mm LK327) and a Duo version (LK329) with an additional cable. It meets the Police Preferred Specification and is accredited 'Secured by Design' (SBD) for reducing property theft. Key features include: Sold Secure approved: Pedal Cycle SILVER, Double locking mechanism with spring release, Key hole dust cover, Vinyl coated to protect paintwork, Carry bracket included, 3 high security keys. Dimensions: 12mm shackle, 190(h) x 110(w)mm.