SIGTUNA Chain Lock - 12mm Hardened Steel Bike Chain Motorcycle Lock with High-Performance 11mm U lock + Nylon Sleeve Protection Cover We at Sigtuna Gear love solid security when it comes to our stuff, because it's valuable to us. That's why we work hard to create 100% happy customers that can rely on robust bike security. This 12mm Heavy Duty Manganese Steel Bike Chain provides you with high-quality security (9/10 rating) in all high and low risk areas. Heavy duty. This Bicycle Chain is amazing. Great quality bike lock combination worth the price and A Motorcycle Chain as good as Abus bike locks at a much lower price. We recommend investing in solid bike security. This certified and tested best Antitheft Lock has a 11mm U-lock Shackle, 12mm Performance Steel Shackles, 2 laser-cut keys and a Sleeve Cover which will give you bike security for 100% We strongly believe we can only grow with 100% happy customers. That's why we have a team ready to answer your questions. Just contact one of our great colleagues Buy Sigtuna 12mm Bike Chain Lock today and enjoy a peace of mind knowing you ride is 100% secure