Strong Anti-Theft Bike U Lock with 16mm Shackle and Cable

【STURDY & DURABLE】The KASTEWILL bike U-lock is crafted from an environmentally friendly silicone cover and high-quality alloy steel, making it cutting-resistant, lever-resistant, and dull-resistant. This ensures your bike receives enhanced security, with the silicone cover protecting against dust and dirt to extend the lock’s lifespan. Additionally, it offers scratch protection for your bicycle.

【ADDITIONAL 4FT CABLE】This bike U-lock is paired with a 4ft high-quality steel loop, providing greater locking flexibility and better protection. The 4ft steel cable offers ample length to secure your bike, motorcycle, electric scooter, and more, to bike racks, fences, and poles.

【MORE SAFE】With a zinc alloy lock core and complex serpentine key slot, the KASTEWILL U-lock features a precise structure designed to prevent technical opening. We include 2 rust-resistant pure copper keys, ensuring you’re always safe, even if you lose one.

【PORTABLE U LOCK】Built to be sturdy yet easy to carry, this U-lock is lightweight at 11.4in x 6.3in. It comes with a high-quality mounting bracket suitable for circular tripods up to 30mm in diameter, making it easy to store and transport. The portable size and mounting bracket allow you to conveniently store it in your backpack or mount it on your bike.

【EASY INSTALLATION & CONVENIENCE】Installation is quick and straightforward, thanks to our convenient high-quality mounting bracket, which is suitable for bike tubes from 20-42mm. This easy installation means you can store or retrieve your U-lock quickly when out riding, ensuring your bike is always secure.