








ROCKBROS RPM Cycling Speed Sensor for Road, Gravel and Mountain Bikes
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Shipping Fees:
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
- US Warehouse In-stock: 3–4 business days
- 🌍International Shipping (if US out of stock): 7–10 business days
- 🚲Bicycles: 20–25 business days
Please note that we do not charge any additional taxes.
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.

Product Highlights
FEATURES
Product Description
- Speed/Cadence Measurement - Connect via Bluetooth to compatible training apps, track, and capture real-time cycling speed and cadence.
- Cycling Cadence - The number of revolutions per minute (RPM) you complete at a given speed. By learning how to increase and train your cycling cadence, you’ll improve your cycling efficiency and pedal for longer and faster.
- Dual Band Technology - Integrated with ANT+ and Bluetooth Smart capabilities, the RPM speed and cadence sensors can connect to smartphones, tablets, and bike computers.
- Sleek and Easy to Install - Universal fit for most bikes and frame sizes. The cadence sensor attaches to the bike’s crank arm or shoe; the speed sensor attaches to the bike's wheel hub. Mounting accessories included.
- One-Click Mode Switching without Interference - Simply rotate the back cover to switch modes without needing to remove the cover and restart. The front LED lights blue in speed mode, green in cadence mode, and red in low battery situations.