





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

Stay safe on your bike with ROCKBROS Waterproof Ultra Bright LED Bike Taillight! This rechargeable light boasts 4 lighting modes for maximum visibility and is waterproof for all weather conditions. Protect yourself while riding with this smart cycling light. MTB approved!
5 LIGHTING MODES:
Constant brightness - 10h, breathing flash (7 colors) - 12h, alternating red and blue flashing - 30h, red flashing - 30h, bilateral red flashing - 100h. Battery life ranges from 10 to 100 hours, depending on the mode selected.
SAME FREQUENCY MODE:
Double-click the button to switch to this mode. when teammates equipped with the same bike taillight and ride near each other, The taillights will automatically change to maintain the same flashing pattern and frequency.
FAST USB CHARGING:
This bicycle rear light has a built-in 600 mAh polymer battery, which has a fast charging speed. And there are 4 battery indicator lights on the smart bike light, when there is only 1 indicator light left, the remaining power is less than 25% and needs to be charged.
THREE ADJUSTABLE BRIGHTNESS:
When the bicycle rear light turns off, long press can adjust the brightness in three levels (low, medium, high), allowing you to choose according to the environment. And the rear light has medium brightness by default.
MORE DETAILS:
IPX6 level waterproof and dustproof, splashing water from all directions will not affect the bike tail light. There are 2 installation methods: seat post or saddle arch installation.
| Brand | ROCKBROS |
|---|---|
| Color | Black |
| Power source | Battery Powered |
| Material type | Acrylonitrile Butadiene Styrene |
| Number of settings | 4 |
| Batteries included? | Yes |
| Item model number | 1 |
| International protection rating | IPX6 |
| Item weight | 88 g |
| Package Dimensions | 14 x 8 x 4 cm |
Stay safe on your bike with ROCKBROS Waterproof Ultra Bright LED Bike Taillight! This rechargeable light boasts 4 lighting modes for maximum visibility and is waterproof for all weather conditions. Protect yourself while riding with this smart cycling light. MTB approved!
5 LIGHTING MODES:
Constant brightness - 10h, breathing flash (7 colors) - 12h, alternating red and blue flashing - 30h, red flashing - 30h, bilateral red flashing - 100h. Battery life ranges from 10 to 100 hours, depending on the mode selected.
SAME FREQUENCY MODE:
Double-click the button to switch to this mode. when teammates equipped with the same bike taillight and ride near each other, The taillights will automatically change to maintain the same flashing pattern and frequency.
FAST USB CHARGING:
This bicycle rear light has a built-in 600 mAh polymer battery, which has a fast charging speed. And there are 4 battery indicator lights on the smart bike light, when there is only 1 indicator light left, the remaining power is less than 25% and needs to be charged.
THREE ADJUSTABLE BRIGHTNESS:
When the bicycle rear light turns off, long press can adjust the brightness in three levels (low, medium, high), allowing you to choose according to the environment. And the rear light has medium brightness by default.
MORE DETAILS:
IPX6 level waterproof and dustproof, splashing water from all directions will not affect the bike tail light. There are 2 installation methods: seat post or saddle arch installation.
| Brand | ROCKBROS |
|---|---|
| Color | Black |
| Power source | Battery Powered |
| Material type | Acrylonitrile Butadiene Styrene |
| Number of settings | 4 |
| Batteries included? | Yes |
| Item model number | 1 |
| International protection rating | IPX6 |
| Item weight | 88 g |
| Package Dimensions | 14 x 8 x 4 cm |
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