Chain lock Black Friday: discounts per link

Which chain for which parking?

A chain of 5 to 7 mm, lightweight, is sufficient for daytime stopping in a busy place. For a valuable bike parked outside for a long time, aim for 10 mm or more, in hardened steel, even if it weighs more than a kilo and a half. The length should be chosen according to the attachment points: about one metre for the frame and one hoop, more for a tree, a wide pole or a cargo bike. Detailed advice on links and shapes can be found on the bike chain lock page, open all year round. For a more compact format, check out the foldable locks from the event.

Comparing two chains on sale

• Composition: chain with built-in lock, chain and padlock set, chain alone or linkable chain for frame lock.
• Dimensions: length and diameter of links, often listed in the reference, such as 110 cm for 10 mm.
• Lock: key or code, and number of keys provided.
• Version: the same range exists in several generations or levels, which should not be confused.
• Discounted price: it only informs about the discount when compared to the same reference, including dimensions and lock.

Anti-theft chain brands

Auvray offers its Xtrem chain in a lasso style, where one end passes through the other before being locked, and provides lighter chains, from 4 to 10 mm, like the K-Block and R-Bloc.

Kryptonite has a chain at each level of its range, from the Keeper to the New York, including the Kryptolok, either coded or keyed, and the Evolution.

Abus coats several chains in a textile sheath that protects the paint, like the IvyTex, and forges square links on the 6806K, designed to offer less grip to a bolt cutter.

Trelock differentiates its chains with locks in the BC series, whose reference provides length and section, and its ZR chains, which connect to its frame locks.

Hiplok, a British brand, has designed a chain that can be worn around the waist, with the lock serving as a belt buckle; the Lite weighs nearly half as much as the Original.

After the Black Friday

Outside the event, look for clearance items in the clearance section and recent references in the new arrivals. For a U-lock, a cable or a chain, the bike lock Black Friday page features all formats.

Frequently Asked Questions

What thickness of links for a theft-prone city?

At least 10 mm, in hardened or cemented steel, and a lock of the same standard. Below that, a standard bolt cutter may be enough to cut through a link.

Chain or U-lock?

At equal weight, the U-lock often withstands better and can be stored on the frame. The chain, being more flexible, wraps around thick or irregular attachment points and more easily secures both the frame and the wheel together.

How to carry a heavy chain?

Over the shoulder, in a bag or worn around the waist for models designed for that purpose. Avoid wrapping it around the seat post or handlebars, where it swings and marks the frame.

Can a chain alone work with any padlock?

The shank of the padlock must pass through the links and be as strong as the chain: a weaker padlock becomes the point of attack. Prefer a set provided by the manufacturer.

Do promotions on anti-theft chains last all November?

Yes at Vélo-Store. The Black Friday takes place on the Friday after Thanksgiving, but the discounts on anti-theft chains apply throughout the period. Set the length according to your usual attachment points before comparing two prices.