# Speed and Cadence Sensor 2-in-1 RockBros C3 ANT+ Bluetooth - black

**URL:** https://aio.lv/en/product--rockbros-5907769386534--12264334
**Data updated:** 2026-05-20 08:58 (EEST)
**Category:** Kids’ Ride-On Accessories
**Manufacturer:** Rockbros
**Manufacturer code:** 5907769386534
**EAN:** 5907769386534
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 23.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 19.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rockbros-5907769386534--12264334

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

RockBros C3 is a 2-in-1 speed and cadence sensor with ANT+ and Bluetooth connectivity. Designed to mount on a bike, it measures wheel speed and pedal cadence for training, performance tracking, and cycling apps. Compatible with devices and apps that support ANT+ or Bluetooth, it provides real-time data for route analysis and workout monitoring.

## Long description

RockBros C3 is a 2-in-1 speed and cadence sensor designed to attach to a bicycle and provide real-time riding metrics via ANT+ and Bluetooth. The compact black sensor records wheel speed for distance and pace calculations and measures pedal cadence to help cyclists optimise cadence-based training. Its dual-protocol connectivity ensures compatibility with a wide range of bike computers, smartphones and fitness apps that support ANT+ or Bluetooth data streams.
Advantages
The RockBros C3 combines speed and cadence measurement in a single, compact unit that is simple to mount on most bikes. Dual ANT+ and Bluetooth connectivity allows simultaneous pairing with different devices and apps, providing flexibility for training and ride logging. The device delivers continuous speed and cadence data that can be used for performance analysis, structured workouts and route tracking without requiring frequent calibration.
Suitable for
Recreational and commuter cyclists who want basic speed and cadence feedback.
Road and hybrid riders tracking distance, pace and pedal revolutions during rides.
Users who pair sensors with bike computers, GPS devices or smartphone cycling apps via ANT+ or Bluetooth.
When it may not be suitable
The sensor is intended for standard bicycle installations; it may not be suitable for frames or wheel setups that prevent secure mounting or consistent magnet alignment. It provides speed and cadence data but does not include advanced features such as power measurement or GPS-based navigation, so riders seeking those capabilities will need dedicated devices.
Key specifications
Function: combined speed and cadence measurement
Connectivity: ANT+ and Bluetooth dual-protocol
Mounting: bike frame and wheel-compatible compact sensor design
Power source: replaceable internal battery (user-replaceable)
Data output: real-time speed and cadence suitable for cycling apps and bike computers
How to use
Attach the sensor to the designated location on your bike frame and align it with the magnet on the wheel or crank as described in the manufacturer’s mounting instructions. Activate Bluetooth or ANT+ on your paired device, open your chosen cycling app or bike computer and search for new sensors; follow on-screen prompts to pair. During rides the sensor will transmit continuous speed and cadence values to connected devices for live display and recording.
What to consider before purchase
Confirm compatibility with your bike computer or cycling app (ANT+ or Bluetooth support).
Check mounting space and magnet alignment options on your frame and wheel/crank.
Consider battery type and expected battery life for uninterrupted use.
Usage recommendations
For reliable readings, ensure the sensor and magnet are firmly secured and correctly aligned. Regularly check battery level and pairing status before rides, and calibrate your bike computer or app settings if required to match wheel size for accurate speed and distance reporting.

## FAQ

### How much does the RockBros C3 Speed & Cadence Sensor cost, and is it available for purchase?

The price is 23.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 184 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 13.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Rockbros products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Rockbros service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12264334/68512867_large.webp