105mm

So there's always talk of bumping the piston up to a 105mm for the 650's...has anyone ever seen one used in the smaller engines? A 550 crank with a 105mm piston would be about 606cc and a 450 crank with the same would be 502cc. I've heard it said that the 450's had too much bore and too...

Spoke with Wiseco this morning and the piston they have on file (7943 M10483 5263D - Thanks Bushie) is proprietary to JB Racing. 1. He did say that if we could confirm that JB Racing is no longer interested in the piston, we could order it directly from Wiseco. Anyone in contact with JB...