Hardened Alloy Steel
The 18mm shackles use manganese alloy to resist manual attacks.
Bike locks
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OKG
OKG Bike locks
These heavy duty security solutions protect motorcycles and electric bikes using hardened alloy steel components. The collection focuses on high-strength shackles and chains designed to resist cutting and prying
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What stands out
Dual-Deadbolt Security
U-locks feature dual-deadbolt mechanisms for anti-theft protection.
Weatherproof Construction
Drill-proof and weatherproof designs ensure long-term outdoor reliability.
Why this brand is here
Heavy Duty Security Standards
The catalog features 12mm chains and 18mm U-shackles built from hardened alloy steel. These models are engineered for motorcycles, trailers, and e-cargo bikes.
- Anti-cut manganese alloy steel
- Dual-deadbolt locking mechanisms
- Four-key security sets
- Drill-proof cylinder protection
- Four-foot hardened chain lengths
- Anti-pry U-lock shackles
What sets them apart
Motorcycle Grade Hardware
These locks utilize 18mm hardened alloy steel specifically for motorcycles and ATVs.
Extended Chain Reach
The 4ft ultra security chains provide enough length for garage and gate security.
E-Bike Protection
Heavy duty builds accommodate the higher security needs of e-cargo bikes and trailers.
Keyed Access Systems
Each high-security model includes four keys to ensure backup access for users.
Listings
Current locks from OKG
Hardened alloy steel small U lock
Keyed bike locks · Heavy duty bike locks · Hardened steel locks · Motorcycle grade locks · Heavy duty U-locks
Manganese alloy steel motorcycle U lock
Keyed bike locks · Heavy duty bike locks · Heavy duty U-locks · Locks for electric bikes
Hardened alloy steel heavy duty chain
Heavy duty bike locks · Heavy duty chain locks · Hardened steel locks · Motorcycle grade locks · Locks for electric bikes
Voices
First-hand notes
The 18mm hardened alloy steel shackle feels incredibly solid on my motorcycle.
I use the 4ft cut-proof chain for my e-cargo bike and it secures easily to the garage anchor.
The dual-deadbolt U-lock is heavy duty and the weatherproof cover keeps the cylinder smooth.
Common questions
OKG Questions
What materials are used in OKG U-locks?
The U-locks are constructed from 18mm hardened manganese alloy steel.
Are these locks suitable for outdoor use?
Yes, the models are designed to be drill-proof and weatherproof for outdoor security.
What is the length of the heavy duty chains?
The ultra security chains are 4ft long and 12mm thick.
How many keys are included with the U-locks?
These heavy duty locks come with four keys.