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We provide clear and detailed shipping fees based on the order amount and shipping method:
- Standard Shipping:
- Order Amount Below $29: Shipping Fee - $4.99
- Delivery Time: 3-4 business days
- Free Shipping:
- Order Amount $29 and over: Free 📦
Shipping Info
We offer a 30-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. EU customers 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@rockbrosbike.us.
At ROCKBROS, we offer a worry-free 1-year warranty to ensure your satisfaction. Whether it's a defect or product issue, simply reach out to us at service@rockbrosbike.us with your order details. We'll handle the rest to make sure your experience is smooth and hassle-free.

For those who love smart tech, our ROCKBROS Smart Bike Brake & Tail Light Q4 is the ideal way to illuminate and keep you safe when riding at night and show other road users when you're braking. With an in-built sensor, this light comes on when you hit your brakes. It installs to your saddle easily and is made from a rugged aluminium alloy.
The ROCKBROS Smart Bike Brake & Tail Light Q4 is perfect for your daily ride. It shows other road users you and your bike clearly from behind and lights up brighter when you brake—signalling to drivers and other road users of your braking intentions. It fits your saddle or seat post and is compact and rugged for even the most demanding bike rides.
Fitted with a sensor, the ROCKBROS Bicycle Smart rear light detects vibrations when you brake. The light brightens on braking, much like a car brake light, so other road users know your intentions.
The ROCKBROS Smart Bike Brake & Tail Light Q4 brightens when you brake and arrives with five light modes. Have it red slow flashing, red, blue and purple breathing, red, blue and purple flash or red constant, depending on your riding conditions.
What's more, whatever mode you are on, the brake light illuminates when you brake—giving the ultimate rear light for safer nighttime cycling.
Secure Saddle & Seatpost Fitting
For those who love smart tech, our ROCKBROS Smart Bike Brake & Tail Light Q4 is the ideal way to illuminate and keep you safe when riding at night and show other road users when you're braking. With an in-built sensor, this light comes on when you hit your brakes. It installs to your saddle easily and is made from a rugged aluminium alloy.
The ROCKBROS Smart Bike Brake & Tail Light Q4 is perfect for your daily ride. It shows other road users you and your bike clearly from behind and lights up brighter when you brake—signalling to drivers and other road users of your braking intentions. It fits your saddle or seat post and is compact and rugged for even the most demanding bike rides.
Fitted with a sensor, the ROCKBROS Bicycle Smart rear light detects vibrations when you brake. The light brightens on braking, much like a car brake light, so other road users know your intentions.
The ROCKBROS Smart Bike Brake & Tail Light Q4 brightens when you brake and arrives with five light modes. Have it red slow flashing, red, blue and purple breathing, red, blue and purple flash or red constant, depending on your riding conditions.
What's more, whatever mode you are on, the brake light illuminates when you brake—giving the ultimate rear light for safer nighttime cycling.
Secure Saddle & Seatpost Fitting