Originally Posted by
chill123
why are the 'miles' so meaningless?
i would have thought the guy that designs them would have done a bit of research and created some simple formula involving resistence, power and revoolutions.
i'm no scientist but surely it is simple math to calibrate those inputs and get the machine to display a reasonable accurate reading?
stationary bikes don't mean squat. sure they give you a workout but,
only a TT outdoors on the road on a bike is a TT.
20 mile TT, (slightly rolling, out and back) if you kick it out in 36-38 minutes you are flying at cat 1 status.
give or take...a lot depends on the exact route, how good you are at turning around, and wind or cow poop on road
also remember that air resistance is a huge factor. I don't know the calculations but every 1/2 mph faster
above 20 mph is about 4 times harder than 1/2 mph above 10mph....or some exponential increase.
if you are not fighting the wind, you ain't doing jack