all the guys in my village who ride BMW R 25's, 26's & 27's are all left-handed
He specifically mentioned BMW R 25's, 26's & 27's - not BMW riders in general. So if he had an R25 as one of the 5 riders of those specific BMWs, and he traded it for an R65, then there would be 4 riders of the R2x series and 1 rider of the R65...still 5 BMW riders, but not 5 'guys in my village who ride BMW R 25's, 26's & 27's'.

Geesh....you'd think an engineer would catch that...

Yes, I agree with Justin as well...can you ever have too many?