Trelock Frame Lock

Yes, the frame lock functions independently as an immobilizer for your rear wheel. The removable chain is an optional add-on for when you need to secure your bike to a fixed object like a lamp post or bike rack.

The Vario ZR 20 flange is designed to be adjustable and fits frame tubes with a diameter between 13mm and 22.5mm. It is a standard mounting system, but you should measure your frame's seat stay diameter before purchasing to ensure compatibility.

No, the chain is encased in a durable protective fabric sleeve. This sleeve acts as a buffer between the steel chain and your bike's frame, preventing scratches and scuffs during daily use.

Reversible keys are designed to be inserted into the lock cylinder in either orientation. This makes locking and unlocking your bike faster and easier, especially in low-light conditions or when you are in a rush.

Yes, the lock is constructed with corrosion-resistant materials specifically designed for outdoor durability. While it is weather-resistant, regular maintenance, such as occasionally lubricating the lock cylinder, will help ensure smooth operation over time.

The chain is 6mm thick, which provides a solid deterrent for quick stops or low-to-medium risk areas. For high-theft urban environments, it is often recommended to pair this with an additional heavy-duty U-lock or chain lock.