Originally Posted by Christopher Marry
The biggest problem of R6 is that with ever-increasing power, the load block increase and crankshaft exorbitant. This is simply the length. biggest problem is the crankshaft.
Didn't think of that. It could be a possible reason, but what about the new +700 PS V12 engines ? An not to forget the Toyota Supra with its TT I6 making monster numbers.