nismoS132 SG gp 125cc bike + rider = 130kg. gp 250cc bike less than 100kg. gp 500cc bike 130kg. u ownself decide.
Ninjabug SG for sportsbike...if meant for track...make it lighter the betta...cos the pick up will be faster...can bring out the power of the bike...heavier bikes r meant for stability.....like touring bikes
nismoS132 SG no leh actually that is the motogp requirements, if the rider + bike underweight they will add additional weights to make the bike 130kg. i think toni elias or dunno who last time 125cc got put weights one, underweight rider + underweight bike
ah tiang SG each have its own gd points, depending on ur own choice. aprilia maintence quite costly whereas sp ish not so. the others u go slowly find out here .... btw me ride sp.