bhai la tho li ha so called pakistani bike,, ab our kaisa promote karoun,,,?
the bold text is not said by me don't put words into others mouth,, for the use of word chonda ,, google it ,, or just wiki it,,,,u will come to know,, and for the word GF 17 .. thats is ur own creation not mine.,,
or here is the wiki refrence to the entry chonda
knowledge of basic geometry in enough to calculate the volume of cylinder,,oh if have studied integration it will also give u the exact equation,,google for more info
calculate displacement for single cylinder engine in cc