Seatylock Viking
Top PickWhat We Like
- Magnetic closure keeps the lock easy to use in rain or dark
- Sold Secure Silver certification means real cut resistance for city security.
- Weather-sealed construction keeps the lock working after rain, mud, and grime.
Worth Noting
- Chain too short to wrap around large poles or trees
- Heavier than typical 7mm chain locks
- Weight
- 2.98 lbs
- Chain Length
- 35.5 in
- Lock Mechanism
- Magnetic key lock
- Chain Thickness
- 7 mm
Read the full review
The magnetic key lock sets the Viking apart: no key twisting, no lock jamming — the shackle snaps shut with a satisfying click and stays sealed against road grit. Backed by a Sold Secure Silver rating, the 7mm hardened steel chain resists bolt cutters and saws better than typical budget locks. Owners report the lock mechanism remains smooth even after months of rain exposure, thanks to the dust-protected keyway and weather-resistant shell.
The 35.5-inch chain is deliberately short — it locks a wheel and frame around standard bike racks without excess slack, but it won't wrap around large tree trunks or street signs. At 2.98 pounds, the Viking is heavier than most 7mm chains; you'll feel it in a backpack or pannier. That tradeoff makes sense for urban commuters who park at the same rack daily and want a lock that doesn't fight back when they're in a hurry. Budget-conscious buyers should look elsewhere — the premium is in the lock mechanism and build quality.
To extend reach for large poles, pair with a secondary cable — the 35.5-inch chain handles most bike racks and posts without issue.
Bottom line: For daily commuters who want a lock that operates smoothly and holds up to weather, the Viking delivers a rare balance of convenience and security — just be prepared for the shorter chain and extra weight.