salam o alikom its yingxiang chinese crusier orignaly 150cc bike
last month i rebuild its engine.i use old suzuki 600cc cars piston its works mast
but aik problm hai bike ki shoot tu barh gai hai but top speed (110km only )nahi main nay driving rear gear or front gears bhi change kaya but kuch khass farak nahi para
can any body tell what to do
or how much a 400cc or 450cc any one that fits in it will cost