Trelock bike lock chain
This handy Trelock ZR355 insertable chain fits every bike that is equipped with a Trelock RS451 or RS455 ring lock and is essentially a must have for every new bike.
With the ring lock, only the rear wheel is secured and any thief can easily run off with the bike. With this extra insertable chain, it is possible to secure the bike to a fixed object (like a bike rack or lamp post).
Extremely safe and easy to use, because you don’t need an extra key.€ 36.00