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Hey guys looking for some advice on what size front and rear sprocket to use.My engine is pushing out 240-340bhp at the moment depending on what boost i set.The bike will used just crooze and drag it will be running a 18inch rim on the rear.Im not good with working out this sort of thing so i thought i would ask you guys cause im sure a few of you would know.And one other thing HD jackshafts who makes a good resonably priced one and where is the best place to source one.Any advice would be greatly appreciated.
thanks guys
aaron
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Going to depend on the rolling diameter of your tire, taller gearing than std can help tame the power and turbo's like load
18" ???is it a widearse rear
HD output shaft , orient express racing would be a good start, they have an online store and express post to Aussie in ~3-5 days
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The general consensus on the American forums is that 18/45 is a good starting point. That's where I will be starting next drag season.
There is no strong performance without a little fanaticism in the performer
I ran 18/46 but that was with a 17" rim.
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thanks guys
my rolling diameter is 640mm yep running a fat tire swing arm
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hey guys thanks for your help if i was to run a 15 tooth front what would i need to run on the rear to compensate the lower front tooth amountif i wanted to run the ratio of the 18/45 sizes
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38, but your going to stuff chains quick and maybe jump teeth if you load it heavily, esp if the bike is low
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