Everything You Need to Know About Milenco Alpha Diamond Wheel Lock 7757 – Yellow – Caravan Security Clamp

Caravan and motorhome theft is a genuine risk in the UK — Metropolitan Police freedom-of-information data collected across 30 UK police forces recorded roughly 500-570 caravan thefts a year between 2020 and 2022. A visible, highly rated wheel lock is one of the most effective deterrents available, since it's obvious to a thief before they've even attempted to move the caravan, let alone got it away.

The Milenco Alpha Diamond Wheel Lock sits at the top of Milenco's wheel lock range, designed to fit directly into the caravan's chassis receiver rather than needing precise alignment around the wheel itself, which is intended to make installation quicker and more consistent than wheel-clamp designs that have to be positioned exactly against the tyre.

Certification

It exceeds Sold Secure Diamond approval — Sold Secure's highest rating band for towed vehicle security products — and is endorsed by Secured by Design, the UK's official police-preferred specification scheme. Together, these are among the strongest independent security credentials available for this category of product, and a visible way to signal that a caravan is well protected.

Build

The lock has a corrosion-resistant faceplate and a protective foam backing that guards the alloy wheel from scuffs and damage while it's fitted, so the lock itself doesn't become a source of cosmetic wear. It uses a keyed-alike double lock system for added convenience if you're used to a single key type, and despite the strength of the construction, Milenco has kept the design compact and simple to fit on caravan alloy wheels, without compromising on strength.

Specification

It's finished in yellow, made from steel, and weighs around 5kg — the weight itself is part of the deterrent, since a heavy, awkwardly shaped lock is harder to attack quickly or discreetly than a lighter clamp.

Warranty

It's covered by a 5-year manufacturer's warranty, reflecting the durability Milenco builds into the steel construction and coating.

Product code: 7757.