Recommended for securing high-quality bicycles. The lock-chain combination is an excellent choice for securing bikes. Due to its flexibility, the lock-chain offers a high level of comfort and many options for locking bicycles to fixed objects. A locked bicycle cannot be easily carried away - this is a real safety advantage. Type: chain lock, security level: 13, keys: 2 user-friendly reversible keys, theft protection: highest security. Details: Weight: 850 mm = 2450 g, 1100 mm = 2900 g, 1400 mm = 3850 g, 1700 mm = 4850 g. With a new functional, durable, and highly flexible synthetic fiber coating to protect against paint damage. Ergonomically shaped lock body. High-quality locking cylinder for high protection against tampering.