Best Seller | Kryptonite Keeper Mini-6 12mm New-U U-Lock Bicycle Lock The Kryptonite Keeper Mini-6 U-Lock features a 12 mm hardened steel shackle with a double deadbolt anti-rotation design that resists bolt cutters and twisting leverage attacks. The lock’s disc-style cylinder with center keyway is protected by a vinyl... more | | $43.95 FREE shipping go to store |