Carol TT, here is something I found out on the net the largest bore kits for the CBR is 200cc.
What if the CBR is modified as well ? Hehe..
Btw I wonder if anyone have try this bike coz what I read from other forum, the gearing of cbr is as rough as the ex5 ! Walaoh, the LC gearing is so smooth compare to ex5 or any other 4 stroke moped.