Originally Posted by
TejanoTrackie
If your maximum speed is only 15mph, then I doubt that frame and fork aerodynamics will have a significant effect. Your own body position is by far the major contributor to wind drag. Do either of these bikes have coaster brakes ? Sometimes coaster brakes can drag when pedaling even though they seem fine when spun in a workstand.
I just used 0-15 as an example because I have read in the past that aerodynamics play almost no role until you reach speed higher than that. And since I am experiencing the "ease of acceleration" any where from 0-15 that's what confuses me.
Like if I'm riding along at 12mph and jump on it, I can reach spin out velocity in a shorter distance on one bike vs the other.
They are both Shimano CB-E110 coasters. But, and it's a big but, I've done the exact same drag eliminating modifications to the clutches/return spring, shoes and bearings on both. The clutch mechanisms can be rotated with the fingernail on your pinky. There is no identifiable drag in either, and what does exist would be identical.