Sold Secure Diamond
The U-lock meets the highest security testing standards.
Bike locks
/ Stahlwart
Stahlwart Bike locks
This collection features high-security folding locks and heavy-duty U-locks for e-bikes and bicycles. These German-standard designs prioritize bolt-cutter resistance and portable security
Our pick
Worth noticing
Bolt Cutter Proof
Folding models are designed to resist heavy manual tools.
Lightweight Security
Compact folding options weigh as little as 2.2 lbs.
Why this brand is here
German Engineering Standards
The catalog highlights folding mechanisms and chain locks reaching up to 43 inches in length. Materials are selected for high-security environments and e-bike protection.
- Sold Secure Diamond U-locks
- 43 inch folding bike locks
- 1/4 inch chain links
- Bolt cutter proof construction
- German security standard compliance
- Extra long combination chains
Why these models
What is here
Look through Hardened steel locks, Compact folding locks, Locks for electric bikes, Lightweight bike locks to see how the Stahlwart models split.
How they are built
Titles in this Stahlwart set call out the build that shows up in Lightweight German Standard Folding Lock; Extra Long Keyed Cable Bike Lock; Highest Security Diamond Rated U Lock.
Made to use
If you need Hardened steel locks, Compact folding locks, Locks for electric bikes, Lightweight bike locks, this is the Stahlwart set to scan.
How they differ
Titles already name the split: Lightweight German Standard Folding Lock; Extra Long Keyed Cable Bike Lock; Highest Security Diamond Rated U Lock.
On this hub
Stahlwart in this catalog
Combination
3 of 6 listed
Keyed
3 of 6 listed
- 8 of 9 list weight · around 1 kg
- 9 of 9 list length · around 110 cm
- 9 of 9 list across · around 7.5 cm
- 9 of 9 list height · around 4 cm
Current set
Listed here: 9 locks
Also in Lightweight Hardened steel locks
Voices
From this set
The Sold Secure Diamond U-lock gives me total peace of mind for my expensive e-bike.
I love how the 43 inch folding lock reaches around large poles easily.
The lightweight 2.2 lbs folding lock is perfect for my daily commute.
Close labels
Brands like Stahlwart
8.1
Kryptonite
same Compact folding locks — 32% higher weight
7.8
ABUS
same Compact folding locks — 17% less weight
7.3
AXA
same Compact folding locks — 70% less weight
Seatylock
same Compact folding locks — same weight
8.5
ROCKBROS
same Compact folding locks — 80% less weight
Sportneer
same Compact folding locks — 18% less weight
Common questions
Stahlwart Questions
How long are the folding locks?
Folding locks are available in 35 inch and 43 inch lengths.
What is the highest security rating available?
The U-lock model features a Sold Secure Diamond rating.
Do the folding locks resist bolt cutters?
Yes, the folding locks are designed to be bolt cutter proof.
How many keys come with the U-lock?
The highest security U-lock comes with 4 keys.