A stable disc lock is the primary line of safety defence, and the Oxford Beast positively matches the invoice. It’s a no-nonsense 1.3kg chunk of metal, with a crafty spherical design which is troublesome for angle grinders and bolt cutters to come up with. Severe thieves may lower the disc, however even that’s tough with the sheer measurement of the lock. It matches discs as much as 8mm, has a 16mm hardened metal locking pin, and there’s a substitute key service from Oxford, too. Add a 22mm Beast Chain and it doubles up as a padlock to safe your bike to an anchor or stable level.

£99.99 (£169.99 for 1.5mm chain)
www.oxfordproducts.com