To trust a bike lock is a rare thing, but we don't second-guess securing our steeds with the Knog Strongman. During our test, the 13mm rectangular rubberized steel shackle withstood attacks by a hacksaw and a pair of bolt cutters. Although it did fall to an angle grinder (few don't), the lock is easy to carry and sports a double dead bolt to prevent picking. [$100; knog.com.au]