It takes just one step to protect your bike from quick theft. Simply use the Abus 4750 frame lock, designed to clamp around wheels with a large wheel passage (wider tyres like on a hybrid, tourer or mountain bike) to prevent anyone from walking away with your bike. There's an 8.5mm steel shackle and the case, shackle and elements of the locking mechanism are made from hardened steel. This is a practical lock which is light and used to provide quick protection against theft. It is recommended to pair the frame lock with a secondary lock which can be secured to an immovable object. All locks can be found here. Lightweight frame lock XL version designed for bikes with big tyres Utilises hardened steel for extra protection - Abus 4750 XL Shield Plus Bicycle Frame Lock in black | Rutland Cycling Frame locks are a super convenient way of gaining extra protection against opportunist theft and the Abus 4750 is excellent for bikes with larger tyres.