We Know A Lot About Bikes! Serious Bicycle Security is our only business. Since 1977 we have been improving everything about bicycle locks, from how a lock is made, to innovative solutions for convenient ways to carry them. Regardless of your type of bicycle, or where you live, Bike-Guard has a security solution designed to meet your individual security needs. While some styles offer greater security, some others offer greater convenience. Bike-Guard offers a complete line of U-Locks, Security Chains, Cables, Padlocks, Disc Locks, and accessories, as well as exclusive and innovative Security Alternatives that overcome many of the problems found in traditional bicycle lock designs. We're committed to providing the very best bicycle security products available, and offering you outstanding value, and customer satisfaction. So confident in fact that each and every Bike-Guard lock carries a limited Lifetime Warranty! We are also committed to providing you with unbeatable customer service and satisfaction. For this reason Bike-Guard locks are sold exclusively through Specialty Bicycle Retailers who can offer you the service level and expertise that is so critical in this important of bicycle purchases.