Secure Bike Lock for E-Bike, Mountain & Road Bikes

Simplified Feature Rundown

【STURDY & DURABLE】The KASTEWILL bike U lock is crafted from an eco-friendly silicone cover and high-quality alloy steel, making it resistant to cutting, leverage, and drilling. This U lock ensures your bike is safer. The silicone cover also helps protect the lock from dust and dirt, extending its lifespan. It also prevents scratches on your bike.

【ADDITIONAL 4FT CABLE】This U lock includes a 4-foot steel loop cable, providing extra locking flexibility and better protection. The 4-foot high-quality steel cable offers more secure locking options. You can lock your bike, motorcycle, or electric scooter to racks, fences, or poles with ease.

【MORE SAFE】The KASTEWILL U lock features a zinc alloy lock core and a complex serpentine key slot, which adds a precise structure to prevent technical opening. It comes with 2 rust-resistant pure copper keys, so even if you lose one, you’re still secure.

【PORTABLE U LOCK】This U lock is sturdy but lightweight for easy carrying. It measures 11.4in by 6.3in. It includes a high-quality mounting bracket suitable for all circular tripods with a diameter of 30mm or less. The portable size and mounting bracket allow you to comfortably tuck it into your backpack or mount it on your bike.

【EASY INSTALLATION & CONVENIENCE】Installation is quick and convenient with the high-quality mounting bracket. The bracket is suitable for bike tubes ranging from 20 to 42mm in diameter. This easy installation lets you quickly lock and store your bike lock when out riding.