Bike Chain Locks & Security | ChainKASE, Kryptonite & ROCKBROS
Bike Chain Locks & Security: Common Questions
What bike chain locks are available at Urban Cycling Apparel?
This collection carries bike chain locks from BiKASE, Kryptonite, and ROCKBROS. The BiKASE ChainKASE X-TREME is a four-foot heavy-duty titanium-reinforced chain key lock at $44.99, designed for serious security in urban and commuting environments. Kryptonite contributes its eBike Lock, purpose-built for the higher value of electric bikes with reinforced construction suited to the heavier investment they represent. ROCKBROS offers chain locks including a 3.2-foot combination and key lock model with hardened alloy steel construction, 10,000 possible combination codes, and a protective cloth sleeve that prevents scratching the bike frame.
What makes the BiKASE ChainKASE X-TREME different from standard chain locks?
The ChainKASE X-TREME uses titanium-reinforced construction across a four-foot chain, giving it exceptional cut resistance while keeping weight more manageable than all-steel chains of equivalent security rating. It uses a key lock mechanism rather than a combination, which is generally more secure against casual bypass attempts. BiKASE is the AltGear LLC brand that also produces the ABC bottle cage and eBike battery bag, with a focus on practical accessories built for real-world cycling use. At $44.99 the ChainKASE X-TREME sits in a strong value position for the security level it provides.
Is a chain lock better than a U-lock for bike security?
Chain locks and U-locks each have practical advantages depending on your situation. A heavy-duty chain lock is more flexible and can loop through a wheel and frame and around a variety of anchor points including poles, racks, and fences of different sizes. A U-lock is more rigid and typically lighter to carry, but is limited to anchor points that fit within its fixed arc. For maximum security, many experienced urban riders use both in combination, since defeating two different lock types requires two different tools and significantly more time. Chain locks are particularly well-suited for e-bikes and higher-value bikes where the security investment is justified by the bike's replacement cost.
Why does an e-bike need a different lock than a standard bicycle?
E-bikes cost significantly more than standard bicycles, making them higher-value targets for theft. The Kryptonite eBike Lock is constructed to address this with heavier-gauge chain links and higher security ratings appropriate for a bike that may cost several thousand dollars. E-bikes are also heavier, which means a heavier chain is less of a relative burden to carry. Additionally, e-bikes are often parked for longer durations while charging or commuting, which increases exposure time and the risk that a thief has adequate time to attempt defeating a lighter lock. Matching your lock's security level to your bike's value is one of the most practical steps any rider can take.
What is the proper way to lock a bike with a chain lock?
Thread the chain through the rear wheel, around the frame's seat or down tube, and around a fixed immovable anchor such as a bike rack, signpost, or fence secured to the ground. Including the rear wheel in the lock loop prevents wheel theft separately from frame theft. If the chain is long enough, loop it through the front wheel as well. Position the lock cylinder off the ground to make it harder to attack with leverage tools, and keep slack in the chain minimal so a thief has less room to work bolt cutters or angle grinders. Locking low to the ground and close to the frame reduces the mechanical advantage available to thieves using cutting tools.
What is the ROCKBROS combination chain lock and how does it work?
The ROCKBROS 3.2-foot chain lock uses a dual-unlock system with both a 4-digit resettable combination and two included keys, so you can open it either way. The default combination is 0000 and can be reset to any of 10,000 possible codes. The chain uses hardened alloy steel with a zinc alloy lock cylinder and a protective cloth sleeve that prevents scratching your frame. At 3.2 feet it is long enough to secure two bikes simultaneously or to loop through both wheels and around a rack. Urban Cycling Apparel ships all chain locks direct across the U.S. from its Webb City, Missouri fulfillment center.