COOSPO BK9S Speed Sensor Bicycle Sensor: ANT+ & Bluetooth 5.0 wireless connectivity
Imagine a tiny, unassuming gadget that turns your bike into a data powerhouse. That's the COOSPO BK9S Speed Sensor in a nutshell. This little marvel dishes out pinpoint-accurate speed metrics, thanks to its dual ANT+ and Bluetooth 5.0 wireless tech, playing nice with almost any cycle computer or smartphone out there. Rain or shine, it's got your back, boasting an IP67 waterproof rating that laughs in the face of harsh weather.
What's more impressive? Its battery life. A staggering 300 hours means you'll spend more time cycling and less time playing the replacement game. Whether you're chasing Tour de France dreams or just out for a weekend spin, the BK9S is your road bike's new best friend. It's light, it's sleek, and it won't clutter your ride. Installation? A breeze. Performance? Reliable as the sunrise. In the world of cycling tech, this sensor is a quiet overachiever.
- IP67 waterproof rating
- 300 hours battery life
- Compatible with road bikes
- Cycle computer sensor
- ANT+ & Bluetooth 5.0 wireless connectivity
General specs
- Brand: COOSPO
- Model: BK9S
- Seller: Joom
- Connectivity: ANT+, Bluetooth 5.0
- Waterproof Rating: IP67
- Battery Life: 300 hours
- Compatibility: Road bikes
- First listed by seller: 8/7/25
If you are interested in more details, you can find full information on the seller's page.
View on seller's site
#publicidad
$48.31
Last price update: 8/24/25
Available to order
Shipping options
Delivery to 
United States
United States
Unavailable
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
COOSPO BK9S ANT+ & Bluetooth 5.0 wireless connectivity
|
COOSPO BK9 ANT+ & Bluetooth 5.0 wireless
|
Cadence Speed Sensor ANT+ Bluetooth 4.0 Compatible
|
Bryton Smart Dual Sensor ANT+ Bluetooth 4.0 compatible
|
Speed Pedal Sensor Cycling Speedometer Waterproof
|
Cycling Speed/Cadence Sensor Wireless Bluetooth/Ant+ connectivity
|
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| Brand | COOSPO | COOSPO | COOSPO | Bryton | Magene | Magene |
| Model | BK9S | BK9 | Smart Dual Sensor | |||
| Color | ||||||
| Rating |
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| Price | $48.31 | $69.38 | $45.83 | $81.66 | $26.99 | $25.00 |
| Seller | Joom | Joom | Joom | Joom | Gshopper | Gshopper |
| Update | August 18, 2025 | August 18, 2025 | August 20, 2025 | August 20, 2025 | July 25, 2024 | July 25, 2024 |
| Connectivity | ANT+, Bluetooth 5.0 | ANT+, Bluetooth 5.0 | Bluetooth, ANT+ | Bluetooth, Ant+ | ||
| Compatibility | Road bikes | Road bikes | ANT+, Bluetooth 4.0 | ANT+, Bluetooth 4.0 | Road bikes, Spinning bikes, Trainers | |
Speed Sensor Bicycle Sensor
$48.31
Reviews
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Christopher N.
Boston, MA
August 10, 2025
As a dad who loves biking with the family, I was struggling to track our rides accurately without spending a fortune. I needed something reliable that wouldn't let me down, especially during our weekend adventures. This sensor was the perfect solution—it just works, no fuss. The data it provides is spot-on, making our training sessions way more effective. It's become an essential part of our gear, and I feel super confident recommending it to anyone. Takeaway: If you're serious about cycling, this is a game-changer that delivers without the headaches.
- Pros: This thing is SUPER accurate with speed data, and it works with all my devices without any hassle. The battery lasts forever, so I never worry about it dying mid-ride, and it's built tough enough to handle any weather without a glitch. Installation was a total breeze—just snapped it on and forgot about it.
- Cons: Honestly, I can't think of any real downsides. Maybe it could be a bit smaller, but that's just nitpicking. I could be wrong, but for the price and what it does, it's hard to fault.