Hardened Steel Construction
The foldable chain links utilize high-strength hardened steel materials.
Bike locks
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Quanmin
Quanmin Bike locks
These hardened steel security solutions provide heavy duty protection for high-value cycles and electric vehicles. Owners of mountain bikes and scooters utilize these foldable designs for compact anti-theft storage
Top pick
Why this brand
Keyless Combination Access
A 4-digit resettable system eliminates the need for physical keys.
Compact Folding Design
The lock collapses into a small form factor for transport.
About this lineup
Heavy Duty Security Standards
The catalog features multi-link folding mechanisms built from hardened steel for maximum resistance. These models serve a wide range of vehicles from mountain bikes to motorcycles.
- 4-digit combination security
- Hardened steel foldable chain
- Anti-theft heavy duty build
- Electric scooter compatibility
- Motorcycle grade protection
- Mountain bike specific design
What to look for
Multi-Vehicle Application
These locks are sized for bicycles, ebikes, electric scooters, and motorcycles.
Foldable Geometry
The folding design allows for rigid security that remains easy to carry.
Combination Interface
The 4-digit interface provides a keyless security method for daily commuters.
Material Strength
Hardened steel components are used to resist cutting and theft attempts.
The lineup
1 lock from Quanmin
Hardened steel folding bike lock with combination
Combination bike locks · Heavy duty bike locks · Electric scooter locks · Hardened steel locks · Motorcycle grade locks
Voices
Notes from buyers
The hardened steel links feel incredibly solid when securing my electric scooter.
I prefer the 4-digit combination because I never have to worry about losing a key.
This folding lock fits perfectly on my mountain bike frame without adding bulk.
Questions
Quanmin Questions
What materials are used in these locks?
These locks are constructed using hardened steel for heavy duty protection.
How is the lock secured without a key?
The system uses a 4-digit combination security lock mechanism.
Which vehicles are compatible with this lock?
It is designed for bicycles, mountain bikes, ebikes, scooters, and motorcycles.
Is the chain easy to transport?
Yes, the foldable chain design is compact and portable.