According to Kreitler's SRM power meter verified chart, using a fork stand REDUCES power output:
I've never used a fork stand so no clue. Probably a net loss due to frictional losses and the power required to rotate the mass of the front wheel assembly and the aerodynamic losses resulting in not turning it through the air.
It was 8 degrees for a high today, currently 7 degrees and the temperature will drop to 1 above zero tonight. Winds ran at 12 to 18 MPH all day with gusts to 23 MPH so the wind chill was brutal.
Yeah, supposedly up to 50 degrees by next Friday...let's hope!
47 minutes on the Kurt Kinetic fluid trainer. I can't get that thing up to the speeds my rollers allow, but it soaks up Watts like a sponge goes after water. I average 15-17 RPM less using the same gear on the fluid trainer and it also drives my heart rate higher on average and maximum.
I enjoy the rollers for keeping my leg speed up and keeping my form sharp. The trainer is better for keeping what little power I develop going through the Winter.
Kurt Kinetic's Watt chart for comparison:
A 22 MPH workout requires about 142 Watts on my 4.5" Kreitlers and 16 MPH or so will require about the same power on the fluid trainer.
The Kurt Kinetic (as well as other quality fluid trainers) fluid trainer has a sea level amount of overcoming air resistance built into the equation. The faster you go, the power input increase parallels outdoor riding...somewhat.
Rollers, unless equipped with a fan, fluid or magnetic resistance attachment, generally have only a very small increase in resistance level as speed increases. Instead they rely on the effort of driving larger gears at higher RPM's. Add a good resistance attachment to a set of rollers and it will give you a hellova workout that surpasses most stationary trainers.