Originally Posted by
SoSmellyAir
Yes, this is scientific; you were after the flywheel effect. Time trial bikes have solid rear wheels for that (and aerodynamic) reasons. This is not a phenomenon that is unique to cycling. Those who have installed aftermarket flywheels in manual transmission cars also go back and forth on this issue.
I will also say that this effect is much more apparent on fixed gear bikes. I started riding on a fixie with 3000+g 50mm deep alloy wheels. When I switched to a road bike, my legs would literally stop (not exaggerating) at the top of the pedal stroke because I was so used to the pedals carrying my feet through the deadzone.
I get confused when people say riding a fixie gives you a better pedal stroke LOL