Dom,


MVVS state the following:

Measured with Mejzlik C/F props and with the #3204 canister muffler.

26x10 - 6,000 RPM

24x10 - 7,000 RPM

Mejzlik and Bolly C/F props offer less resistance than wide blade, wooden props, like Bolly, or Menz, so they can be spun faster by a typical engine.
Typically, with Bolly, a wood 22x8 will spin as fast as a C/F 22x10.