Seatylock Mason 140 U-Lock

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Delivered between Wed, 19.8. and Tue, 1.9.
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.

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
Metal, Plastic
Material
Hardened steel, Silicone

Lock properties

Lock type
U-lock
Bike lock equipment
without holder
Thickness
13.70 mm
Security level
3
Closing mechanism
Key

Origin

Country of origin
France

Voluntary climate contribution

CO₂ emissions
2.58 kg
Climate contribution
CHF 0.11

Scope of delivery

Scope of delivery
3 keys, Lock, two stickers

Product dimensions

Inside temple dimensions Length
14 cm
Inside temple dimensions Width
8.50 cm
Weight
970 g

Package dimensions

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

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Bike locks» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • Seatylock
    Not enough data
  • 1.FTM
    0 %
  • 2.Burg Wächter
    0.2 %
  • 3.BBB
    0.3 %
  • 3.Rockbros
    0.3 %

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: Digitec Galaxus
  • Seatylock
    Not enough data
  • 1.Abus
    0 days
  • 1.AXA
    0 days
  • 1.Fischer
    0 days
  • 1.Hama
    0 days

Return rate

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

Source: Digitec Galaxus
  • Seatylock
    Not enough data
  • 1.Xiaomi
    0.4 %
  • 2.FTM
    0.5 %
  • 3.Hama
    0.6 %
  • 4.Hudora
    0.8 %
Source: Digitec Galaxus