OnGuard RockSolid 8590 U-Lock - 3.55 x 6.9

Weighing just 3 pounds, this lock stands as the lightest angle-grinder resistant model on the market. It features the innovative X4P locking mechanism, which secures the shackle to the crossbar at four distinct points, significantly enhancing protection against pulling, jacking, prying, and twisting attacks. Included in the package are five keys, along with OnGuard’s comprehensive anti-theft protection plan for added peace of mind. With the highest security rating in the OnGuard lineup, this lock is an ideal choice for professionals seeking reliable, top-level bike security.