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 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
Quick stops in the city shouldn't mean leaving your bike or e-scooter unattended and unprotected. This handcuff-style chain lock from ROCKBROS is designed for urban commuters who need fast, reliable security without the bulk. The double-ring mechanism attaches quickly to rails, poles or fixed objects, while the chrome-plated steel chain and zinc-alloy lock cylinder provide a solid, dependable barrier against opportunistic theft. Lightweight enough to slip into a bag and compact enough to carry every day, it's the kind of lock you'll actually remember to bring.
The double-ring handcuff design allows quick and secure attachment of e-scooters, bikes or accessories to rails, poles or fixed objects up to 54 mm in diameter — practical for everyday urban use and short stops.
Chrome-plated steel connectors and stainless steel rivets deliver stable, dependable locking. The zinc-alloy lock cylinder sits inside an impact-resistant ABS housing built to handle daily wear.
The 59.5 cm chrome-plated A3 steel chain measures 3.5 mm in thickness and features a polypropylene textile sleeve that protects your frame from scratches and makes the chain comfortable to handle.
Comes with two keys as standard — useful for commuters, households or shared use, so a misplaced key never leaves you stranded.
Weighing approximately 502 g, the lock is easy to carry in a bag or backpack. Compact enough for daily transport without adding unnecessary weight to your commute.
Quick stops in the city shouldn't mean leaving your bike or e-scooter unattended and unprotected. This handcuff-style chain lock from ROCKBROS is designed for urban commuters who need fast, reliable security without the bulk. The double-ring mechanism attaches quickly to rails, poles or fixed objects, while the chrome-plated steel chain and zinc-alloy lock cylinder provide a solid, dependable barrier against opportunistic theft. Lightweight enough to slip into a bag and compact enough to carry every day, it's the kind of lock you'll actually remember to bring.
The double-ring handcuff design allows quick and secure attachment of e-scooters, bikes or accessories to rails, poles or fixed objects up to 54 mm in diameter — practical for everyday urban use and short stops.
Chrome-plated steel connectors and stainless steel rivets deliver stable, dependable locking. The zinc-alloy lock cylinder sits inside an impact-resistant ABS housing built to handle daily wear.
The 59.5 cm chrome-plated A3 steel chain measures 3.5 mm in thickness and features a polypropylene textile sleeve that protects your frame from scratches and makes the chain comfortable to handle.
Comes with two keys as standard — useful for commuters, households or shared use, so a misplaced key never leaves you stranded.
Weighing approximately 502 g, the lock is easy to carry in a bag or backpack. Compact enough for daily transport without adding unnecessary weight to your commute.
Learn more
ROCKBROS
Approx. 502 g
Key: Copper + Nylon; lock: ABS Housing + Zinc Alloy Cylinder; chain: A3 Chrome-Plated Steel Chain with Polypropylene Fabric Sleeve
Up to 54 mm
Up to 54 mm
