LD-333 Hardened Steel Motorcycle Disc Brake Lock | Wholesale Supplier

The LD-333 hardened steel motorcycle disc brake lock is a compact, high-security anti-theft device engineered to immobilize motorcycles, scooters, and sport bikes by locking directly onto the front or rear disc brake rotor. Unlike chain or cable locks that can be defeated with leverage attacks or cut in open spaces, a disc brake lock engages the rotor vent holes so the wheel cannot rotate more than a fraction of a turn, making ride-away theft virtually impossible without first removing the lock. The hardened zinc alloy steel body is compact enough to carry in a jacket pocket or under-seat storage yet rugged enough to withstand hammer strikes, prying, and attempted drilling. This direct-to-rotor locking strategy is favored by riders who want maximum protection in a small, portable form factor.

At the core of the lock is a hardened steel locking pin available in 10mm and 12mm diameters, sized to pass through the vent holes of most common disc brake rotors with openings from 6mm to 13mm. The pin is heat-treated to resist bolt cutter jaws and hacksaw blades, forcing any determined attacker to resort to noisy angle grinders that draw immediate attention in populated areas. A precision 5-pin tumbler cylinder governs the locking mechanism, delivering smooth key operation while providing meaningful resistance to picking and bumping. Each lock ships with two brass keys, and the rubber and plastic protective coating around the body prevents the metal housing from scratching the brake rotor, wheel spokes, or motorcycle finish during installation and removal.

The LD-333 is offered in a range of color options including solid black, black with a red accent, black with a yellow accent, and high-visibility orange, allowing riders to coordinate with their motorcycle livery or select a bright color that serves as a visible theft deterrent and reminds the rider to remove the lock before riding off. With a body measuring 70 by 45 millimeters, the lock is universally compatible with the vast majority of motorcycle, scooter, and sport bike disc brake rotors on the market, and the dual pin diameter options ensure proper fitment across thin and thick rotor designs.

For wholesale buyers, importers, and motorcycle accessory distributors, the LD-333 delivers strong OEM and ODM flexibility. Custom logos can be laser-engraved or molded onto the lock body, pin diameter and color combinations can be tailored to specification, and keyed-alike or master key systems are available to simplify management for rental fleets and dealerships handling multiple machines. The lock meets CE, ISO 9001, and RoHS standards and is supplied in individual color boxes or header cards with plastic hooks, packed 30 to 50 pieces per carton for efficient retail-ready distribution. With a minimum order quantity of 200 pieces, mixed orders across pin sizes and colors supported, and a production lead time of 15 to 25 days, this disc brake lock is a valuable addition to any motorcycle security product line.