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30t & 70t gearing

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Old Mar 18, 2012 | 04:52 PM
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Default 30t & 70t gearing

I have a Andrews 30t front and a hd 70t rear pulley. That combined with all my motor work from Don this thing is a fricken stump puller! But to every up there's a down...highway gearing is ****! I'm tachin 3100@ 80, 3300 @ 90. Whatta you guys think of cranking that hard for extended periods of time?
 
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Old Mar 18, 2012 | 04:54 PM
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That's why I'm holding off on the 30T. Did the 70T last year, what a diff. Do ride about an hour on the thruway to work so I don't wanna kill the 6th gear.
 
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Old Mar 18, 2012 | 04:59 PM
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Originally Posted by jshull
I have a Andrews 30t front and a hd 70t rear pulley. That combined with all my motor work from Don this thing is a fricken stump puller! But to every up there's a down...highway gearing is ****! I'm tachin 3100@ 80, 3300 @ 90. Whatta you guys think of cranking that hard for extended periods of time?
You can run all day long @3300 and really, how long do you run 90 mph any how? My bike is geared the same and I like it better on the highway.It's nice to just twist the throttle and pass people and not have to down shift.
 
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Old Mar 18, 2012 | 05:05 PM
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anyone ever run a 5spd with that 30/70 setup?
 
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Old Mar 18, 2012 | 05:24 PM
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Originally Posted by thedonthere
You can run all day long @3300 and really, how long do you run 90 mph any how? My bike is geared the same and I like it better on the highway.It's nice to just twist the throttle and pass people and not have to down shift.
I just got off the phone with don and he said were a ok! Man is it fun to ride now. I can definatly pass wothout shifting. It goes for dyno next month! Finally I can't wait!
 
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Old Mar 18, 2012 | 06:44 PM
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3300rpm is nothing really, it's nowhere near redline even. Also it's usually close to the sweet spot in the power curve with a lot of cams.
 
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Old Mar 18, 2012 | 06:56 PM
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I just got a little paranoid. Alls well in my world now.
 
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Old Mar 18, 2012 | 08:20 PM
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Where did you get your 70 for the rear?
 
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Old Mar 18, 2012 | 08:38 PM
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what is the stock pulley size?
 
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Old Mar 18, 2012 | 09:42 PM
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6 speed - All ’07-’08 FLHT, ’07-’11 Softail and ’07-’11 Dynas - stock 32T front / 66T rear pulley - 2.79 final ratio
(‘06 Dynas with ANDREWS 34T front / 70T rear pulley are similar with a 2.78 final drive ratio)

Here's some gear ratio info from the Andrews website;
http://www.andrewsproducts.com/PDF_f...osMPG-pg28.pdf
 
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