Hardened Steel
The 14mm U-locks provide high-strength anti-theft protection.
Bike locks
/ Retrospec
Retrospec Bike locks
Heavy duty security solutions featuring hardened steel U-locks and integrated security cables. These systems protect mountain bikes and eBikes in outdoor environments
Our pick
Worth noticing
Dual Layer Security
U-lock and 4-foot cable combinations secure both wheels and frame.
Mounting Brackets
Included brackets allow for secure storage on the bike frame.
Why this brand is here
Heavy Duty Protection Standards
The Lookout and Grizzly series focus on 14mm hardened steel and 4-digit combination cables. These models are built for mountain bikes and eBikes requiring outdoor security.
- 14mm hardened steel U-locks
- 4-foot security cables
- 6-foot anti-theft cables
- 4-digit combination cylinders
- Frame mounting brackets
- Keyed U-lock mechanisms
Why these models
In the range
Retrospec locks in this range cover Flexible cable locks, Combination bike locks, Heavy duty bike locks, Locks with mounting brackets.
What they use
Heavy duty security solutions featuring hardened steel U-locks and integrated security cables. These systems protect mountain bikes and eBikes in outdoor environments
Where they fit
Flexible cable locks, Combination bike locks, Heavy duty bike locks, Locks with mounting brackets is the split that matters in this Retrospec range.
Look here first
The useful differences sit in Flexible cable locks, Combination bike locks, Heavy duty bike locks, Locks with mounting brackets, not in a brand slogan.
Current set
Listed here: 5 locks
Also in For electric bikes Mountain
Voices
From this set
The 14mm hardened steel U-lock feels incredibly heavy duty on my eBike.
I use the 4-foot security cable along with the U-lock to secure my mountain bike wheels.
The mounting bracket holds the Grizzly cable lock securely while I am on the trails.
Close labels
Brands like Retrospec
Via Velo
same For electric bikes — same weight
Sportneer
same For electric bikes — 44% less weight
8.1
Kryptonite
same For electric bikes — close weight
7.8
ABUS
same For electric bikes — 43% less weight
7.5
ONGUARD
same Heavy duty U-locks — 22% less weight
ZEIXIHY
same For electric bikes — 38% less weight
Common questions
Retrospec Questions
What is the thickness of the U-lock?
The Lookout U-lock features 14mm hardened steel.
Does the Grizzly lock use a key?
No, the Grizzly model uses a 4-digit combination.
What bikes are these locks for?
They are designed for mountain bikes and eBikes.
How long is the Grizzly cable?
The Grizzly anti-theft cable is 6 feet long.