Kryptonite are the last word in bike security. They created the original bicycle u-lock in 1971 and have continued to innovate ever since.
Kryptonite bike locks come with a lifetime guarantee, and looking at their products, its not hard to see their belief in their gear.
Kryptonite Keeper 785 Integrated Chain Bike Lock£24.49RRP: £34.99
Kryptonite Kryptoflex 1018 Coiled Key Cable Bike Lock£13.99RRP: £19.99
Kryptonite Kryptoflex 1018 Resettable Combo Cable Bike Lock£11.89RRP: £16.99
Kryptonite Kryptoflex 1218 Resettable Combo Cable with FlexFrame C Bracket Bike Lock£17.49RRP: £24.99