Discuss light weight issues concerning road bikes & parts.
5 posts • Page 1 of 1
A lot of different variables that could factor into the speed on a given segment, like wind/direction, wattage output, position on the bike. The most accurate would be back to back rides with a power meter holding the same wattage/position. Unlikely that there is a website that can take all the given variables and give you the result, or that you would even know the values for certain variables to enter into said website.
Probably the most realistic way would be to add or subtract the rolling resistance difference from the tires, then estimate the aero drag in watts and put it into some kind of calculator. There are so many variables but the tires and aero would be the main ones, say 15 watts on the tires and 25 watts for the bike and position aero difference at 25mph.