







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. 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

Being seen from behind matters on busy roads and darker rides. This smart rear bike light brightens when it detects braking and enters sleep mode when the bike is stationary, helping you stay visible without managing the light at every stop. It offers 9 lighting modes, 7 light colours, USB-C charging and IPX6 water resistance for commuting, road, gravel and MTB rides. The included brackets, fixing strap and cable ties allow mounting to saddle rails or a seatpost.
The rear light automatically brightens when you slow down or brake sharply, helping alert traffic behind you.
Seven light colours and nine modes give you different visibility options for daytime and night riding.
The 300mAh battery provides approximately 13–30 hours of use depending on the mode, with USB-C charging and four power indicators.
IPX6 water resistance helps the light cope with rain, splashes and changing outdoor conditions.
Use the included brackets, strap or cable ties to fit the light to saddle rails, a seatpost or other supported outdoor gear.
Being seen from behind matters on busy roads and darker rides. This smart rear bike light brightens when it detects braking and enters sleep mode when the bike is stationary, helping you stay visible without managing the light at every stop. It offers 9 lighting modes, 7 light colours, USB-C charging and IPX6 water resistance for commuting, road, gravel and MTB rides. The included brackets, fixing strap and cable ties allow mounting to saddle rails or a seatpost.
The rear light automatically brightens when you slow down or brake sharply, helping alert traffic behind you.
Seven light colours and nine modes give you different visibility options for daytime and night riding.
The 300mAh battery provides approximately 13–30 hours of use depending on the mode, with USB-C charging and four power indicators.
IPX6 water resistance helps the light cope with rain, splashes and changing outdoor conditions.
Use the included brackets, strap or cable ties to fit the light to saddle rails, a seatpost or other supported outdoor gear.
Learn more
ROCKBROS
Approx. 30 g
Aluminium alloy