ABUS 303 Red

The locking pin diameter indicates the thickness of the pin that is inserted through the opening in the brake disc, measured in millimetres. This specification is important to determine whether the disc lock is compatible with the openings in the brake disc of the motorcycle or scooter.

• Small diameter: locking pins with a smaller diameter fit through narrower or finer openings in the brake disc. They are suitable for discs with limited clearance, but generally offer slightly less resistance against brute-force attacks.
• Medium diameter: provides a good balance between compatibility and security. These locking pins fit most standard brake discs and offer reliable theft protection.
• Large diameter: locking pins with a larger diameter offer a high level of theft protection and are more resistant to cutting or forced attacks. Due to their thickness, they may not fit through smaller brake disc openings.

The maximum brake disc thickness indicates how thick the brake disc may be for the disc lock to fit correctly. For disc locks that clamp over the edge of the brake disc, this measurement is crucial to ensure proper compatibility.

• Critical for fitting: if the brake disc is thicker than the specified maximum thickness, the disc lock cannot be fitted or locked correctly.
• Vehicle dependent: brake disc thickness can vary significantly depending on the motorcycle or scooter, as well as the model and production year.
• Measure before purchase: it is strongly recommended to measure the brake disc thickness before purchasing a disc lock to avoid compatibility issues.

This specification indicates whether the lock is equipped with a built-in alarm function. In addition to mechanical protection, an alarm can provide extra deterrence by emitting a loud sound when movement or tampering is detected.

• Yes: the lock features an integrated alarm that is triggered by unauthorised movement or tampering. This increases deterrence and visibility during theft attempts, especially in public or busy areas.
• No: the lock relies solely on mechanical security and does not include an alarm. This version is simpler, requires no battery and is suitable for users who do not need an audible warning.

The ART certification is a Dutch quality label that indicates the level of theft protection offered by a motorcycle or scooter lock. This certification is issued by the ART Foundation and is an important requirement for many insurance companies. The higher the number of ART stars, the more rigorous the testing and the higher the level of theft resistance.

• ART 3: three-star locks provide good theft protection for mopeds, scooters and bicycles with a high theft risk. For mopeds and scooters, insurers generally require at least an ART 3-certified lock.
• ART 4: four-star locks are designed for motorcycles and offer a high level of theft protection. They are suitable for use on the road and meet the minimum requirements set by most motorcycle insurers.
• ART 5: five-star locks provide the highest level of theft protection and are tested against longer attack times using heavier tools. Due to their weight, these locks are mainly used to secure motorcycles at home or at a fixed parking location.

The SRA certification is the French counterpart to the Dutch ART quality label and refers to an independent testing and approval process for anti-theft products such as motorcycle locks. SRA-certified locks are tested for mechanical resistance against sawing, drilling and other attack methods and are recognised by many insurers in France and across Europe as proof of effective theft protection.

• SRA Class: indicates that the lock has been tested and approved according to the stringent French SRA standards for theft resistance. A lock with SRA certification offers reliable protection against break-in attempts and meets security requirements set by many insurers.
• SRA & insurance conditions: similar to the ART system, some insurance companies in France and Europe require the use of an SRA-certified lock as a condition for theft coverage.

The application indicates which type of two-wheeler the lock is suitable for. Not all locks offer the same level of security or compatibility, so choosing a lock that matches the type of bicycle, scooter or motorcycle is essential.

• Bicycle: bicycle locks are designed for lower weight and a lower theft risk. They are suitable for city bikes and e-bikes, but generally do not provide sufficient security for scooters or motorcycles.
• Scooter: locks for scooters and mopeds offer a higher level of theft protection than bicycle locks, with a good balance between security and weight. They are suited to lighter motorised two-wheelers.
• Motorcycle: motorcycle locks are the heaviest and offer the highest level of theft protection. They are designed to withstand more aggressive attack methods and are suitable for motorcycles with a high theft risk.

The weight indicates how much the lock weighs according to the manufacturer’s specifications. This is an important factor when choosing between ease of transport and theft protection, especially if the lock is carried regularly while riding.

• Lightweight: lightweight locks are easy to carry and ideal for daily use or short stops. They offer greater convenience, but generally provide a lower level of security than heavier locks.
• Medium weight: these locks offer a good balance between portability and security. They are suitable for use on the road and provide reliable theft protection.
• Heavyweight: heavy locks offer the highest level of theft protection and can withstand more aggressive attack methods. Due to their weight, they are mainly used for home use or fixed parking locations.

Some disc lock models are supplied with a disc lock reminder. This is a thin steel cable, sometimes coiled, that is included with certain disc locks.

When attaching the disc lock to the brake disc, the reminder cable is connected to the lock, while the other end is attached to the handlebar. This provides a clear visual reminder before riding off that the disc lock is still installed.

The specification is simply indicated as: “Disc lock reminder: yes / no”.