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Hi guys Went for my first ride on my bmx today. Sadly i didnt have sprockets for the right gearing but its sweet for moastly flat roads. The overall ratio is 11.7:1 with 19" wheels and a 49cc pocket rocket engine. On my short ride up the road my speedometer stopped working past 59km/h on a...

Hi guys this is part of my jackshaft for my motorized bicycle. A 55 tooth sprocket will be welded to the flange. i was wandering if these welds would hold with a 49cc 2stroke at about 3hp. the flange is welded to the end of a peddle which will make the jackshaft. i welded it at about 80 amps...

i have a cheap stick welder and i have masterd that an i was wanting to upgrade. found this welder http://www.justtools.com.au/prod572.htm im living in new zealand but this was best site i could find. and i was planning on using gasless wire