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Get on it
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Discussion Starter · #1 ·
i am thinking about changing my gearing when i do a 520 conversion. how much fuel mileage has everyone lost and how much top end? i have a 07 and hate to loose fuel mileage because i put 19k miles on it and just had it a year.
 

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158 Posts
Not sure about fuel mileage but you will probably lose about 8 mph on top end. Hope this helps.:jacked
 

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336 Posts
I have and 06 and I get 35 mpg out of mine
My tach shows rpms that match my speed, what I mean is at
50mph = 5000rpm
60mph = 6000rpm
100mph = 10000rpm
you get the idea, so i guess if my tach is 17500 quick math is that is still too fast :D
 

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Mr. B (Florida Boy)
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1,533 Posts
I was wondering the same thing, but no matter, I'm gettin my SDIME back! so I'll have ol reliable to throw the bike into the back of it if I have to.
 

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my speedo was off by 14.6% when i got my speedohealer

You'll lose a small amout of mpg and its minimal so it really doesnt matter...If you truely worried about it dont get it. Otherwise if it isnt that big of a deal do it.
 

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Mr. B (Florida Boy)
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1,533 Posts

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fun and informative
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560 Posts
my speedo was off by -14.6% aswell. get a speedohealer. fixed that right up for me. no more speedo lag either.
 

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Get on it
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Discussion Starter · #11 ·
i might stick with the factory gearing. i am putting on a power commander and taking off the emmisions junk. i know the power commander is going to hurt the fuel mileage also but i want it to be the right fuel air mixture.
 

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RACE READY MODE
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i might stick with the factory gearing. i am putting on a power commander and taking off the emmisions junk. i know the power commander is going to hurt the fuel mileage also but i want it to be the right fuel air mixture.
I doubt you see a major difference. At least I didn't see much difference.
 

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Premium Member
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i didnt see much of a difference either...maybe a couple miles a gallon
 
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