Abus has proven themselves as one of the best bike lock manufacturers in the industry, over 100 years of experience in manufacturing and design gives them a leading edge over the competition. The 9" long shackle makes this a perfect option for busy city dwellers with adequate room to secure your bike to any fixed object. The Ultra 410 features an innovative six-wafer key cylinder makes lock picking very difficult and nearly impossible. Ergonomic round and hardened lock body Receives Abus 8 of 15 security rating Double bolting shackle provides excellent protection from twisting and cutting attacks Includes bracket to fit 24-35mm tubes