Originally Posted by
TMonk
IIRC, [MENTION=101819]Sixty Fiver[/MENTION] used to race in his younger days, primarily TT's.
For an amateur, 10mi. in 23min is doable (26mph), but difficult. It would require both a dialed in-TT bike with all the aero fixings AND a powerful engine.
I used to be able to knock down a sub hour 40 (25 miles) on a whim unless the winds were massive and I could still do this on my geared road bikes and my fixed gear bikes up until I was 42 and blew up my back and did a bunch of nerve damage that affects my left hip and leg.
Was training for masters (riding and training 16,000 km / year) when I blew up my back and now I am pretty happy if I can do 35 km in an hour and can still keep up a decent pace on longer rides and ride a few centuries every season and also like to go touring and aim to ride 100 km a day when I do that.
I have never owned a time trial bike... but I was gifted with some freaky cardio, stupidly strong legs, and a really high pain threshold.
I still have great cardio and really high pain threshold but you need all three to be racing and now I only have one good leg.