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There'll be some extra postage on that one! |
Ok i have a Question for Shazzam? When i was in germany on the AutoBarn and we all did some high speed runs i noticed the maximum speed i could get in 5th gear would not increase when i hooked 6th gear some times on a down hill section she would gain 4-8 mph more! and it would not pull anymore revs in top gear!! as i have spent most of my life on jap bikes ! i just assumed the bike had run out of HP (Horse power) and therefore had not got the power to pull back into the sweetspot in 6th gear so if i go for the 15/43 option will the bike give me more top speed because it can pull back up into the power /torque range in top gear? or will it just BLOW UP!!! |
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That's already factored in, mate! Not that I intend to prejudge this whole thing, but frankly, he's out there in no-man's land, aka HarleyDavisonworld.com and he needs all the encouragement he can get! [Edited on 9-2-2005 by Redruth] |
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With your current stock 15/36 sprockets and 94-link chain, your tach will read 3,890 rpm in 6th gear when your speedometer reads 70mph. When you change the rear sprocket to 43-teeth (which requires a longer 98-link chain,) your tach will then read 4,647 rpm in 6th gear when your speedometer reads 70mph. You'll be reving higher at the same road speed - in any gear. You'll also gain more torque for starting-off too. Clear? |
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It depends on a number of factors, but essentially you've got the right idea. To reach the highest to speed you need to keep lowering the gear ratio until you max your terminal velocity concurrent with your red line. Trial and error will give you the answer. The biggest factor is air drag which quadruples when you double speed. 15/43 is a nice all-round ratio, but probably isn't the best top speed ratio. |
Thanks Shazzam! i'm sure i'm running 14/38 at the moment not sure i will check to morrow!;) |
Thanks Shazaam. I actually understand all of that now. :D:eureka: [Edited on 10-2-2005 by Redruth] |
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Damm! I thought id caught him out, sat here smiling to myself.... |
Right, im going to buy 15/38. also im going to buy some spare teeth so i can glue them on depending where i am riding. Bostic or evo stick should work on metal. this way i will cover all situations.;) |
get a renthal carrier mate and two or 3 sprockets 38.40.42... job done! |
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