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We offer a 14-day return and exchange policy from the date you receive your item. Items must be unused, undamaged, with tags attached, in original packaging, and accompanied by proof of purchase.
We cover return shipping for quality issues, defective, damaged, or incorrect items, size-related returns, oversized items such as roof racks, and approved exchanges. For other personal-reason returns, the customer is responsible for return shipping.
For full order cancellations within 14 days, the original standard delivery cost will be refunded. Partial returns generally do not include a refund of the original delivery cost.
Refunds will be processed within 5–7 business days after we receive and inspect your return. Please contact us before returning any item. For questions, email service@rockbrossport.co.uk.
Estimated delivery time

Designed for bicycles, e-bikes, scooters, gates and everyday security needs, this anti-theft chain lock combines dual-unlock convenience, strong theft protection and flexible portability for reliable daily use. The combination of a 4-digit code and backup keys provides extra peace of mind when securing valuable belongings.
Features both a 4-digit combination lock and two backup keys, giving you flexible unlocking options. If you forget the code, the key provides a convenient alternative for quick access.
Built with a 17.19mm thick zinc alloy lock core designed to improve resistance against cutting, tampering and theft attempts. The precision keyway design further enhances lock security.
The factory default code is 0000 and can be easily changed. Hundreds of possible combinations allow you to personalise the lock for improved security.
With an overall length of approximately 96cm, the lock is suitable for securing bicycles, electric bikes, scooters, motorcycles, gates, doors and other valuable equipment.
The wear-resistant outer sleeve helps protect bicycle paintwork from scratches while reducing noise caused by chain movement. The flexible chain design also makes carrying and wrapping the lock more convenient during rides.
Designed for bicycles, e-bikes, scooters, gates and everyday security needs, this anti-theft chain lock combines dual-unlock convenience, strong theft protection and flexible portability for reliable daily use. The combination of a 4-digit code and backup keys provides extra peace of mind when securing valuable belongings.
Features both a 4-digit combination lock and two backup keys, giving you flexible unlocking options. If you forget the code, the key provides a convenient alternative for quick access.
Built with a 17.19mm thick zinc alloy lock core designed to improve resistance against cutting, tampering and theft attempts. The precision keyway design further enhances lock security.
The factory default code is 0000 and can be easily changed. Hundreds of possible combinations allow you to personalise the lock for improved security.
With an overall length of approximately 96cm, the lock is suitable for securing bicycles, electric bikes, scooters, motorcycles, gates, doors and other valuable equipment.
The wear-resistant outer sleeve helps protect bicycle paintwork from scratches while reducing noise caused by chain movement. The flexible chain design also makes carrying and wrapping the lock more convenient during rides.
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ROCKBROS
Approx. 427g
Zinc alloy + ABS