Locking your bike up out on the streets has never been as confidence-inspiring as it is when you use the Kryptonite Keeper 810 Folding Lock. With flexible hardened steel and a 360-degree link rotation, this lock lives up to its name by deterring thieves and making your life easier and more secure. Its folding design makes for compact, easy transport on your bike with the carrier, while the high-quality neoprene cover makes for a soft, protective barrier between the steel and your bike.