A good fit for commuters and urban riders who want compact, keyless security for everyday stops rather than a bulky lock for extended unattended parking.
The Street Fighter is a practical chain lock for securing your bike to fixed urban objects. Its 5 mm heat-treated hardened steel chain is designed to improve resistance to cutting and tensile forces, while the resettable combination mechanism gives you up to 10,000 possible combinations without the need to carry a key.
At 100 cm long, the chain offers useful flexibility around a bike and a standard fixed structure. The high-quality nylon sleeve helps protect your frame from scratches, and the included ULAC Velcro strap keeps the lock organised when wrapped around the top tube or seat post. At 540 g, it is a sensible carry for commuting, short errands and urban riding.
5 mm hardened steel chain
Heat-treated hardened steel is designed to improve resistance to cutting and tensile forces.
100 cm locking length
The flexible chain gives you useful reach for securing your bike to suitable fixed objects.
Resettable combination
Set your own code and leave the keys at home, with up to 10,000 unique combinations available.
Protective nylon sleeve
The sleeve helps prevent the chain from scratching your bike’s paintwork during use and transport.
Easy bike-mounted storage
Wrap the lock around the top tube or seat post, then use the included ULAC Velcro strap to keep it tidy.
Compact 540 g carry
The lock-only weight keeps everyday transport manageable in a backpack or around the bike.
Teal finish
The teal nylon sleeve adds a clear, distinctive colour to your everyday security setup.
General
Materials & construction
Dimensions & weight
Features
What's included
Neo Chain
A practical chain-lock platform that combines flexible positioning with easy transport around your bike or in a backpack.
Resettable combination lock
Set your own four-digit combination and lock the bike without carrying keys, with up to 10,000 possible combinations.
Heat-treated hardened steel chain
The hardened steel construction is designed to improve resistance to cutting and tensile forces.
Protective nylon sleeve
The high-quality nylon sleeve helps prevent the chain from scratching your bike’s paintwork.
A bike lock is not just a bike lock.
ULAC is a Taiwanese bicycle-lock brand established in 1982. It began as an original equipment manufacturer producing high-security solutions for global industry leaders, then transitioned to an independent, consumer-focused brand in 2015 with the Si Works silicone lock collection.
ULAC develops security products through its in-house U-Lab research and development centre and operates its own manufacturing facility. Its work includes integrated alarm systems, NFC smart-lock technology and biometric authentication, alongside conventional bicycle-lock hardware and design-led products.
