Accurate Tracking For Every Ride
Easily see your fitness improve with every training session. The Threo cycling heart rate monitor helps you push further each session. Enjoy constant feedback for a healthier lifestyle. Gain confidence and hit your goals faster.
Precise Readings
Instantly check your effort with reliable real-time data. Stay safe by knowing exactly when to slow down or speed up.


All-Day Comfort
Soft strap feels gentle and light against your skin. Focus fully on cycling without any distractions or irritation.
Universal Connectivity
Seamlessly pairs with phones, watches, and bike computers. Switch activities without losing important tracking information.

















Kevin A.
Couldn’t be happier. The strap feels invisible under my jersey and records my heart rate every second I ride.
Ruby J.
Every time I hop on my bike, I can check my heart instantly. It’s also easy to switch it to another device if I need!
Chloe K.
Really helps me understand when to push and when to slow down. Love the soft material—it’s never itchy or tight.
Sophie H.
I use it every morning and it’s always accurate. It even fits over my cycling shirt with no problem.
Amy J.
Accurate numbers every single run and ride. Plus, no itch at all, even when I’m sweaty. Really happy with this strap.
Oliver S.
This one never slips around. It fits perfectly and shows exactly how my heart is doing even when I switch between phone and bike computer.
Megan L.
No issues pairing, comfortable for daily rides.
Grace V.
Light, simple, and accurate during cycling trips.