View Single Post
Old 01-05-21, 01:56 PM
genejockey's Avatar
Join Date: May 2007
Location: SF Bay Area
Posts: 4,439

Bikes: Canyon Endurace, 105; Battaglin MAX, Chorus; Bianchi 928 Veloce; Ritchey Road Logic, Dura Ace; Cannondale R500 RX100, Schwinn Circuit, Sante

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 2036 Post(s)
Liked 2,012 Times in 1,033 Posts
Originally Posted by Het Volk View Post
The Wahoo Kickr Core provides data based on I am guessing, some form of algorithm based on the combination of speed and force on the magnetic device? Otherwise, no other speed sensor involved.
I'd assume it's measuring power output and yes, using an algorithm that calculates what your speed on the road would be for that power output, given your mass, the virtual slope, and estimated wind and rolling resistance. In Erg mode your wheel speed is meaningless because you could theoretically be spinning 39x30 or 53x11 at the same cadence and putting out the same power, but on the actual road you might be going 9 mph with one and 34 in the other.
genejockey is offline