Why 944 Mcyl vs 911?

[evilC]

[QUOTE=Humble;70404]The #'s on the MC are 26 and 20

QUOTE]

I too would have thought that the numbers refer to the bore but the information I have been able to gleen is that the 930 ran plain bore 20mm pistons. It maybe that my numbers relate to a different (earlier?) version of the model in the same way that the 944 m/c changed to a stepped bore from a plain bore. I presume that the #26 is at the pedal end of the bore?

Clive