Wattage = weight*slope*speed*cadance?

Anything about Power (watts)

Moderators: mcorn, Tacx Moderator, Tacx Video Production, malfukt, Tacx support

Post Reply
Posts: 1
Joined: Sat Jul 15, 2017 8:58 am

Wattage = weight*slope*speed*cadance?

Post by wexxer » Sun Jul 16, 2017 9:49 am


I'm a noob at physics and watts and stuff so hopefully someome can help me with this.

I bought a Tacx Neo and started a trainingsession, riding at a constant wattage of 160watt. Weight is constant (duh), slope is constant (0%). But when I changed from the big ring (50) to the small one (34) my speed dropped radically from 30 to 18km/h. Cadance remained at about 88.

In my understanding wattage is calculated by weight, speed and slope. So since the speed dropped from 30 to 18 km/h I would expect the wattage to drop too. But that remained 160watt. Do I need to add cadance to the equation as well? :?


Post Reply

Return to “Wattage”

Who is online

Users browsing this forum: No registered users and 4 guests