Seatylock Mason 140 U-Lock
Price in EUR including VAT
Delivered between Thu, 30/4 and Tue, 12/5
More than 10 pieces in stock at supplier
More than 10 pieces in stock at supplier
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Product details
The safest and lightest U-lock in the world. Unique triangular cross-section profile for the best strength-to-weight ratio. Double-locking mechanism for protection against twisting attacks. Metal and plastic parts are treated against rust and UV rays. The Mason 140 lock is certified with 3 stars by ART.
Technical specifications:
- Shackle thickness: 13.7 mm
- Materials: hardened steel and silicone
- Shackle dimensions: 14 x 8.5 cm
- Weight: 0.97 kg
- The triangular profile of the shackle is patented and offers the best strength-to-weight ratio.
Included in the package: lock, two stickers, 3 keys.
Seatylock warranty:
- All Seatylock products come with a factory warranty of 6 months, which can be extended to 3 years if the customer registers their keys.
- To claim the warranty, the customer must register their key number.
- Each Seatylock keychain has a label with two codes: a Code A and a Code B. These codes are used for key registration and warranty claims, and they are very important. Registering the key numbers also allows for the creation of a duplicate in case they are lost.
Lock type | U-Lock |
Thickness | 13.70 mm |
Closing mechanism | Key |
Weight | 970 g |
Item number | 57904481 |
Manufacturer | Seatylock |
Category | Bike locks |
Manufacturer no. | UM14CM |
Release date | 18/4/2025 |
Colour | Black |
Exact colour description | Black |
Material group | Metal, Plastic |
Material | Hardened steel, Silicone |
Lock type | U-Lock |
Thickness | 13.70 mm |
Security level | 3 |
Closing mechanism | Key |
Country of origin | France |
CO₂ emissions | 8,12 kg |
Climate contribution | EUR 0,20 |
Scope of delivery | 3 keys, Lock, two stickers |
Length | 8.50 cm |
Width | 14 cm |
Weight | 970 g |
Length | 20.60 cm |
Width | 13.50 cm |
Height | 3.10 cm |
Weight | 1.03 kg |
Specifications may include unverified machine translations.
14-day cancellation right
30-day right of return
30-day right of return
24 Months statutory warranty
Legal concerns
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Reviews & Ratings
Statutory warranty score
How often does a product of this brand in the «Bike locks» category have a defect within the first 24 months?
Source: Galaxus- SeatylockNot enough data
- 1.Vorel0 %
- 2.Burg Wächter0,2 %
- 3.BBB0,3 %
- 4.Kryptonite0,4 %
Statutory warranty case duration
How 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: Galaxus- SeatylockNot enough data
- 1.Abus0 days
- 1.Fischer0 days
- 1.HipLok0 days
- 1.Kryptonite0 days
Return rate
How often is a product of this brand in the «Bike locks» category returned?
Source: Galaxus- SeatylockNot enough data
- 1.Vorel0 %
- 2.FTM0,6 %
- 3.Hama0,7 %
- 4.Hudora1 %
Source: Galaxus

