The lightweight and accurate COOSPO BK9C cadence sensor delivers real-time magnet-free cadence measurement, Bluetooth 5.0 and ANT+ for broad compatibility, and up to 300 hours of battery life. Thanks to its advanced motion algorithm, IP67 water resistance, and easy crank installation, it provides reliable training data for both beginners and performance cyclists.
Accurate magnet-free cadence measurement

Accurate magnet-free cadence measurement

Dual sensing and an advanced algorithm provide stable, accurate real-time cadence data even on rough roads.

Bluetooth 5.0 and ANT+ for easy connectivity

Bluetooth 5.0 and ANT+ for easy connectivity

Compatibility with bike computers, smartwatches, and fitness apps lets you track and analyze your training anytime.

Lightweight, durable, and easy to install

Lightweight, durable, and easy to install

Slim body weighing about 8.6 g, IP67 water resistance, and an elastic mounting strap ensure a comfortable, secure fit.

The COOSPO BK9C is a compact cycling cadence sensor that precisely tracks your pedaling rhythm and helps optimize training. Its magnet-free design with dual sensing ensures stable, reliable data even on uneven surfaces.

With Bluetooth 5.0 and ANT+ technologies, you can easily connect the sensor to your favorite apps, GPS bike computers, and smartwatches. Installation with the elastic strap takes minutes, the slim, lightweight body (approx. 8.6 g) stays out of the way, and the LED indicator shows device status.

Why choose COOSPO BK9C:

  • Accurate real-time cadence without magnets for consistent training.
  • Wide compatibility thanks to Bluetooth 5.0 and ANT+.
  • Long battery life up to 300 hours with a CR2032 cell.
  • IP67 resistance for riding in rain and sweat.
  • Easy installation with an elastic strap and silicone pad.

Specifications

Manufacturer
COOSPO
Model
BK9C
Dimensions
30.48 × 33.02 × 7.62 mm
Weight
8.4 g
Battery
CR2032 (replaceable)
Battery life
up to 300 hours
Wireless connectivity
Bluetooth 5.0, ANT+
Function
Cadence measurement
Operating temperature
-10 °C to 50 °C
Water resistance
IP67
Mounting
Elastic strap with silicone pad
LED indication
Device status

COOSPO cadence sensor for cyclists BK9C

13,90 €
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Last piece · At your place Tuesday (10 / 14)
Product code: 510153-1
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13,90 €