








Some pre-sale items are shipped via international express, which may result in longer delivery times and additional shipping fees. Exact details will be shown at checkout.
We offer a 14-day hassle-free return and exchange policy starting from the date you receive your item. To be eligible, products must be unworn, unused, with tags attached, in original packaging, and accompanied by proof of purchase. If the item is defective, damaged, or incorrect, we cover the return shipping cost; for size or personal preference returns, the customer is responsible for shipping fees. Please inspect your order within 72 hours and contact us for any issues.Have a 14-day no-questions-asked return right. Refunds will be processed within 10 business days after we receive and inspect your return. Please contact customer service before returning items and send returns to the designated address; unauthorized returns will not be accepted. For questions, email service@rockbrossport.co.uk
Estimated delivery time

Daily e-scooter and bike commuting
Quick stops in urban areas
Locking frames to rails or poles
Lightweight, portable security needs
Practical Handcuff-Style Design
Double-ring handcuff lock allows fast and secure attachment of e-scooters, bikes or accessories to rails, poles or fixed objects up to Ø 54 mm — ideal for everyday use and short stops.
Strong & Reliable Construction
Solid chrome-plated steel connectors combined with stainless steel rivets provide stable locking. The zinc-alloy lock cylinder is housed in impact-resistant ABS, built for daily use.
Flexible Steel Chain with Protective Sleeve
59.5 cm steel chain with 3.5 mm thickness and chrome finish. The durable polypropylene textile cover protects frames from scratches and ensures comfortable handling.
Two Keys Included
Supplied with two keys for added convenience — ideal for commuters, families or shared use without worry if one key is misplaced.
Compact & Easy to Carry
Weighing approx. 502 g, the lock is lightweight, compact and easy to store in a bag or backpack for everyday transport.
| Keys | Copper + Nylon |
|---|---|
| Lock Body | ABS Housing + Zinc Alloy Cylinder |
| Chain | A3 Chrome-Plated Steel Chain with Polypropylene Fabric Sleeve |
| Lock Structure | A3 Chrome-Plated Steel Links with Stainless Steel Rivets |
| Lock Weight | Approx. 2502g (Without Keys) |
| Chain Length | Approx. 259.5cm (Without Lock Head) |
| Applicable Diameter | Suitable for securing items up to 54mm in diameter |
Daily e-scooter and bike commuting
Quick stops in urban areas
Locking frames to rails or poles
Lightweight, portable security needs
Practical Handcuff-Style Design
Double-ring handcuff lock allows fast and secure attachment of e-scooters, bikes or accessories to rails, poles or fixed objects up to Ø 54 mm — ideal for everyday use and short stops.
Strong & Reliable Construction
Solid chrome-plated steel connectors combined with stainless steel rivets provide stable locking. The zinc-alloy lock cylinder is housed in impact-resistant ABS, built for daily use.
Flexible Steel Chain with Protective Sleeve
59.5 cm steel chain with 3.5 mm thickness and chrome finish. The durable polypropylene textile cover protects frames from scratches and ensures comfortable handling.
Two Keys Included
Supplied with two keys for added convenience — ideal for commuters, families or shared use without worry if one key is misplaced.
Compact & Easy to Carry
Weighing approx. 502 g, the lock is lightweight, compact and easy to store in a bag or backpack for everyday transport.
| Keys | Copper + Nylon |
|---|---|
| Lock Body | ABS Housing + Zinc Alloy Cylinder |
| Chain | A3 Chrome-Plated Steel Chain with Polypropylene Fabric Sleeve |
| Lock Structure | A3 Chrome-Plated Steel Links with Stainless Steel Rivets |
| Lock Weight | Approx. 2502g (Without Keys) |
| Chain Length | Approx. 259.5cm (Without Lock Head) |
| Applicable Diameter | Suitable for securing items up to 54mm in diameter |