I purchased this center lock to safeguard my bike while i commute and it has exceeded my expectations. After I put it to the test, it locked up quickly and securely, giving me peace of mind that my bike wasn't going anywhere .The aluminum material is strong and durable, making it ideal for daily use. The only downside is that it`s a bit heavier than some other locks, but the added security is worth it. Overall I highly recommend this lock to any cyclist in need of a reliable and sturdy option..See full review