Originally Posted by
utoner34
But isnt bike weight different that rider weight?
Not at steady speed.
For example, lighter wheels means you ride faster, dont they?
Wheel weight difference doubles accelerating as you move from axle center to road surface although it's not enough to matter unless you're contesting a sprint finish.
Accelerating an extra 500g at the road surface from 0 to 20 MPH only costs you the energy it takes covering 12 feet.
Or you are saying if I ride 5kg bike and weight 70kg, I will ride as fast as if I ride 10kg bike and weight 65kg?
Yes.