U-locks are designed to secure high-quality bicycles. Premium, hardened materials provide minimal leverage for break-in attempts. Trelock U-locks are particularly lightweight and secure - with a pull-out resistance of up to 7 tons, these locks withstand even the most brutal break-in attempts. Trelock protects steel cables or locking mechanisms with its own technology: the Armadon 360º armor. Specially shaped steel bodies encase the "weak points" favored by professional thieves.