The Seatylock Mason 220 U-lock is a high-security shackle lock specifically designed for urban use. With a wide opening of 115 mm, it is one of the largest U-locks available, allowing for secure attachment to thicker posts, lamp posts, and similar urban fixtures. The lock is made from hardened steel and features a patented pentagonal profile that provides increased strength compared to conventional round shackles. With the highest security rating of 20/20 Sold Secure Diamond and ART3 certification, it is particularly resistant to cutting, drilling, and sawing attacks. The double locking mechanism further protects against twisting attacks. This weather-resistant lock is ideal for city bikes, e-bikes, and scooters, offering reliable theft protection in various urban environments.
Lock type | U-Lock |
Item number | 57904495 |
Manufacturer | Seatylock |
Category | Bike locks |
Release date | 18/4/2025 |
Colour | Black |
Exact colour description | Black |
Material group | Metal |
Material | Hardened steel |
Lock type | U-Lock |
CO₂ emissions | 2,01 kg |
Climate contribution | EUR 0,12 |
Inside temple dimensions Width | 11.50 cm |
How often does a product of this brand in the «Bike locks» category have a defect within the first 24 months?
Source: GalaxusHow many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: GalaxusHow often is a product of this brand in the «Bike locks» category returned?
Source: Galaxus
The Mason 220 has a different design to the 18o, but also shines with top workmanship and ease of use. During the flex test, even the z2oer could not be opened with just one cut. Supplied without holder, which is available as an option.