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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
free shipping

Colour2

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.

Key specifications

Lock type
U-Lock
Thickness
13.70 mm
Closing mechanism
Key
Weight
970 g

General information

Item number
57904481
Manufacturer
Seatylock
Category
Bike locks
Manufacturer no.
UM14CM
Release date
18/4/2025

Colour

Colour
Black
Exact colour description
Black

Material

Material group
MetalPlastic
Material
Hardened steelSilicone

Lock properties

Lock type
U-Lock
Thickness
13.70 mm
Security level
3
Closing mechanism
Key

Origin

Country of origin
France

Voluntary climate contribution

CO₂ emissions
8,12 kg
Climate contribution
EUR 0,20

Scope of delivery

Scope of delivery
3 keysLocktwo stickers

Product dimensions

Length
8.50 cm
Width
14 cm
Weight
970 g

Package dimensions

Length
20.60 cm
Width
13.50 cm
Height
3.10 cm
Weight
1.03 kg

14-day cancellation right
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
  • Seatylock
    Not enough data
  • 1.Vorel
    0 %
  • 2.Burg Wächter
    0,2 %
  • 3.BBB
    0,3 %
  • 4.Kryptonite
    0,4 %

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
  • Seatylock
    Not enough data
  • 1.Abus
    0 days
  • 1.Fischer
    0 days
  • 1.HipLok
    0 days
  • 1.Kryptonite
    0 days

Return rate

How often is a product of this brand in the «Bike locks» category returned?

Source: Galaxus
  • Seatylock
    Not enough data
  • 1.Vorel
    0 %
  • 2.FTM
    0,6 %
  • 3.Hama
    0,7 %
  • 4.Hudora
    1 %
Source: Galaxus