> That  makes about 5-8 km/h more in average with the same effort but I hav=
e some
> doubts if that much achievements could have been achieved by some
> lubricants. I guess it would need some measurements to be sure here, it w=
as
> only my speculation.

Advise top speed "before and after" and I'll have a guestimate of
power difference.
An estimate of your "frontal area when riding at top speed would help
- otherwise I'll use my own estimate.
Or - remarkably good approxxxximation - Power loss to aerodynamics
~~~=3D 0.5A V^3   (A m^2 frontal area, V m/s)
That's at sea level BUT rough enough that you'd have to get rather
high to matter. (eg Mono Lake to Yosemite you *may* perhaps being to
notice).

A TdFmotor in your down tube probably helps more :-).

              Russell
--=20
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