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Can it be that fast?

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Old Feb 23, 2007 | 12:28 PM
  #21  
alekinci's Avatar
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Default RE: Can it be that fast?

ORIGINAL: mann392

I was doing some gearing calculations and I'm wondering if I've made a mistake somewhere. I've got the primary gear set at 1.8220, 6th gear at 1.075, rear tire set at 180/55/17 and at 14,500 rpm that comes out to about 187mph. Now I know that these bikes aren't topping out at this speed. Am I wrong with my calculations or is the bike just geared too high? I've read a lot about you guys dropping down a tooth and maybe this is why. Thanks in advance
Brendon
i dont know about the calculations and im not planning on varifying them, but its possible that this is the bike potential. however, kenetic wise you will never reach that since there is too much resistive force displayed by air on the bike and the rider. Just to clue you in but after 60+mph you no long fighting the forces of friction(negative) between the tire and road, tranny load, gravity on the pistons +etc bla bla bla. For most part at after that speed you are applying the cars/bike engine's energy to push the vehicle through air only (+ some resistance from tranny).
 
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Old Feb 24, 2007 | 03:30 PM
  #22  
RojerLockless's Avatar
Retired Moderator & The Big Deal
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From: Houston TEXAS
Default RE: Can it be that fast?

goten my speedo to indicate 165mph on my 05 however it was on the track and the speed was clocked at 159mph and that was close to banging it off redline.. with an akraphovic exhaust and no other mods
 
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