Happy Bike Month! Score $50 off our SAF Lock until May 9th when you purchase online at AltorLocks.com. The strongest bike lock available on the market! Resists attacks by angle grinders. Check out the “15 Best Bike Locks of 2020” review and SAF Lock video angle grinder test from the folks at Bicycling Magazine. Also check out Lock Picking Lawyers YouTube channel review of the the possibility of the lock mechanism being picked on the street as "zero".