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post #1 of 7 (permalink) Old Jan 20th, 2006, 12:07 am Thread Starter
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speed guesstimate

what speed is 8000 rpm in 6th gear with 15/40 sprockets on a 180 rear tire... give or take?
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post #2 of 7 (permalink) Old Jan 20th, 2006, 12:15 am
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I would bet around 150mph.

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post #3 of 7 (permalink) Old Jan 20th, 2006, 4:38 am
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I would bet about 130 MPH

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post #4 of 7 (permalink) Old Jan 20th, 2006, 4:49 am
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139.5MPH, i have an excel table for this stuff!
if you could rev it out to 13000rpm you would be doing 226.92MPH )

Chris
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post #5 of 7 (permalink) Old Jan 20th, 2006, 7:19 am
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Chris, do you have a link to the table? I'm trying to figure out gearing on a modified racebike bike.

That table sounds like a handy thing to have around. [I have excel]

what is the theoretical speed for this combo:


2:1 primary's, 6th gear 24/26, final drive 15/38. @ 10,000 rpm

I'm trying to figure out what rear sprocket is the best all 'round choice for tracks with long front straights like VIR and Summit Point.

Thanks,
Sean
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post #6 of 7 (permalink) Old Jan 20th, 2006, 8:35 am
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157.48MPH

drop me an email to

[email protected]

and i'll email the excel table out to whoever wants it!



Chris
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post #7 of 7 (permalink) Old Jan 20th, 2006, 8:48 pm
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Chris,

You is "Da Man." Thanks, that is exactly what I'm looking for.

I'm headed out of town, but I'll definitely email you for the table next week.

Sean
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