MasterLock 8290EURDPRO Hardened Steel Chain Bike Lock

The MasterLock 8290EURDPRO is built around the concept of a chain bike lock – and that defines its character. This lock is designed for securing scooters, bicycles and wheelchairs. The weight of 1550 grams is a direct result of its robust construction. That makes it a heavy lock, but also one that offers physical resistance.

The classification as an 'anti-theft lock' indicates it is designed to withstand theft attempts. A chain offers flexibility in use – you can loop it around larger objects or fixed anchor points. The downside is that a chain, compared to a U-lock, takes up more volume and is heavier to carry. It is a trade-off between versatility and portability.

Under the hood

• Type – Bike lock 8290EURDPRO.
• Weight – 1550 grams.
• Primary function – Anti-theft lock for scooters, bicycles and wheelchairs.

With a weight of 1550 grams, this is not a lightweight accessory. That weight comes from the use of Hardened Steel – steel that has been treated to resist sawing and cutting attempts. It is a lock that makes its presence felt, both in your hand and in your bike bag. The chain construction itself is less rigid than a solid bar, making it flexible to handle.

MasterLock specifies its use for scooters, bicycles and wheelchairs. These are objects with a certain value and size, where a standard frame lock sometimes falls short. The chain is suitable here because you can thread it through wheels and frames and secure it to posts or racks. It is less suitable for those who want to travel ultralight or carry the lock daily in a trouser pocket – the weight and volume are too great for that. You choose this lock for scenarios where sturdiness and a long, flexible security solution are a higher priority than ease of carrying.

The lock identifies itself as the bike lock 8290EURDPRO – a model designation that refers to a specific, hardened version within the range.