Bike locks / SIGTUNA

SIGTUNA Bike locks

These hardened steel security solutions protect bicycles and electric scooters with high-strength folding and U-lock designs. Owners benefit from space-saving hardware that mounts directly to the frame for easy transport

Keyed bike locks Heavy duty bike locks Electric scooter locks Hardened steel locks Compact folding locks Locks for electric bikes Waterproof bike locks Black bike locks Locks with mounting brackets Heavy duty U-locks Lightweight bike locks 16mm thick bike locks Yellow bike locks
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Standout
Hardened Steel Folding Bike Lock with Mounting Check details
In short

Hardened Steel Construction

Heavy duty 8mm and 16mm steel resists cutting and theft.

Anti-Scratch Coating

Protective finishes keep bike paintwork undamaged during daily use.

Space Saving Design

Folding mechanisms and mounting brackets allow for efficient storage.

Why we keep it

Heavy Duty Security Standards

The catalog features 16mm diameter high-strength steel and 8mm fold-up links. These models utilize keyed mechanisms and specialized mounting brackets for outdoor equipment.

  • 16mm diameter high-strength steel
  • 8mm hardened steel folding links
  • Anti-scratch protective coating
  • Integrated mounting bracket systems
  • Compact fold-up geometry
  • Keyed anti-theft mechanisms
The lineup in short

Folding Lock Versatility

Compact folding models are designed for bicycles, electric bikes, and baby strollers. They offer a lightweight alternative to traditional heavy chains.

Heavy Duty U-Locks

The 16mm U-lock models provide maximum diameter steel for high-risk outdoor environments. These are often paired with folding locks in multi-piece sets.

Mounting and Portability

Most models include easy mounting hardware. This allows the lock to stay on the frame without interfering with the ride.

Multi-Pack Options

The inventory includes 2-pack sets for riders securing multiple assets. These sets maintain the same hardened steel standards across both units.

Products

9 locks from SIGTUNA

Voices

First-hand notes

Joseph 4.2

The 8mm folding lock fits perfectly on my electric bike frame using the included mount.

Adam 4.7

I use the 16mm U-lock for my outdoor equipment and the anti-scratch coating protects the finish.

Ethan 4.4

The compact folding design is very space saving when I am riding my bicycle through the city.

Questions

SIGTUNA Questions

What materials are used in these locks?

The locks are constructed from hardened steel and high-strength steel.

Can these be used on electric scooters?

Yes, the catalog includes locks specifically for electric scooters and e-bikes.

How do the folding locks attach to the bike?

They feature easy mounting brackets for secure frame attachment.

What is the thickness of the U-locks?

The heavy duty U-locks feature a 16mm diameter.