| You read my mind Kev and I just did the basic calc...
Std 600cc = 583 actual.
Using the 600 data and putting the 600 barrels on a 750 gives: 618cc
Erm duuno about the big bore kits either - on the std stroke of 58mm, 86mm bore = 673.8cc - unless peeps are just rounding up to 675 !!! |