Originally Posted by
ill.clyde
No way to measure miles indoors, since I'm on a trainer and not rollers ... but I did 45 minutes last night.
What's your average speed when you ride outdoors?
10mph? then you did 7.5 miles
15mph = 11.25 miles
20mph = 15 miles
At least that's how I'd calculate it if I had a way to ride indoors.