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this is a knex car me and my brother always used to jump very very strong if u want me to post i will we used to let it go ofb f the roof of my house it only rarely broke the axle but u can sub out the gray for black rods for axle (would make 10plus stronger  i did not have enough)
its ok
we used to jump it off of fly wheels jumps very strongthere r different variables to it though
kool
instructions???????????
ye if ya want =D
would you build and would other peeps build????
i wouldnt, im making a ball machine now, some people mite =D
thankSSSS <br>
no prob =D
should make it remote controlled or put a motor in there

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