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21st April 2005
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Biker
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Join Date: Feb 2005
Location: Pennsylvania
Posts: 17 Sportster/Buell Model: 1200 custom Sportster/Buell Year: 2009
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when to shift???
I know that this has probably been answered a thousand times but I am going to ask it again anyways???? can anybody out there that has a tach on their bike tell me about what rpm's to shift???? and about what rpm's you should be on the highway at about 70???? I am sort of new to the whole harley thing.... after riding high rpm jap bikes it is a big difference to me.... by the way I have an 883-1200 with the 883 front sprocket still in...
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21st April 2005
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Senior Master Custom Bike Builder
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Join Date: Apr 2005
Location: Yacolt,Washington
Posts: 3,773 Other Motorcycle Model: Electraglide classic Other Motorcycle Year: 2000
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Shift when it feels good lol.Harleys pull well from about 2500rpm til around 4500rpm in stock form.That's the beauty of the H/D motors wonderfull linear torque curve.Just don't lug it down till it jerks or wind it out past where it's still pulling well.
Y2K
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Electraglide Roadtripper
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21st April 2005
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Super Moderator
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Join Date: Nov 2004
Location: West Central Illinois
Posts: 6,268 Sportster/Buell Model: 883/1200C Sportster/Buell Year: 2000
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You can go to http://people.montana.com/~bowman/Sp.../SpeedCalc.htm for a rpm calculator for early and late (pre '04) 883's, 1200's and more.
When to shift depends on how your 883/1200 conversion was built and how you like to ride. I'm assuming you mean at what rpm to shift when racing??? IF so, then we would need more information on what has been done to your engine to determine a close estimate. OR a dyno sheet.
If you have an '04 or up bike, then you can use this rpm calculator http://www.geocities.com/z_design_st...ion_z28_6.html and just plug in the correct information. In your case it would be a 150/80/16 tire, set transmission ratio's to 1:1, and set rear gear ratio to 4.071:1 and that will give you 5th gear rpms at any speed.
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Shu Screamin' Eagle 10:1 pistons Stage 2 883 heads Screamin' Eagle .497" cams Screamin' Eagle Mikuni HSR42 Thunderheader Forcewinder
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23rd April 2005
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Biker
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Join Date: Apr 2005
Location: Dallas, TX
Posts: 17 Sportster/Buell Model: XL 1200 C Sportster/Buell Year: 1996
Reputation: 10

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just cruising I'll shift at 1800 to 2200 depending on gear... probably short shifting compared to a lot of people. any lower and it sounds like the rod bearings are being beaten flat.
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24th April 2005
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Luvs me an artsy chick...
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Join Date: Nov 2004
Location: Chautauqua County, NY
Posts: 11,675 Sportster/Buell Model: 883>1200 XLH Sportster/Buell Year: 97
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OK, this threads been beaten to death....lol
When you should you shift? When it sounds like somethings gonna break apart if you don't!
lol
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~Chuck
"entia non sunt multiplicanda praeter necessitatem"
Occam's Razor...
in English: "entities must not be multiplied beyond necessity."
My definition: "The simplest answers are the most likely"
~NRHS machined 1200 conversion, shittin and gettin...
Chuck's favorite tuning posts
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24th April 2005
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Senior Chief Master Mechanic
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Join Date: Nov 2004
Location: NE, Ohio
Posts: 903 Sportster/Buell Model: 1200 Custom Sportster/Buell Year: 03 Other Motorcycle Model: Elecectra Glide Classic Other Motorcycle Year: 2010
Reputation: 23

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Most probably shift in the high twos to low threes. Nice flat stretches if you want to knock down the vibes, noise and go easy on gas you can cruies in the twos.
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2010 FLHTC
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24th April 2005
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Senior Chief Know It All
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Join Date: Nov 2004
Location: Connecticut
Posts: 853 Sportster/Buell Model: 883/1200 Sportster/Buell Year: 2004
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Quote:
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Originally Posted by Kev12012
I know that this has probably been answered a thousand times but I am going to ask it again anyways???? can anybody out there that has a tach on their bike tell me about what rpm's to shift???? and about what rpm's you should be on the highway at about 70???? I am sort of new to the whole harley thing.... after riding high rpm jap bikes it is a big difference to me.... by the way I have an 883-1200 with the 883 front sprocket still in...
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You should be at about 3500 RPM at 65 MPH.
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24th April 2005
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Senior Chief Master Mechanic
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Join Date: Nov 2004
Location: NE, Ohio
Posts: 903 Sportster/Buell Model: 1200 Custom Sportster/Buell Year: 03 Other Motorcycle Model: Elecectra Glide Classic Other Motorcycle Year: 2010
Reputation: 23

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"and about what rpm's you should be on the highway at about 70????"
Well at 70 it doesn't really matter. It's whatever it is in 5th gear, that is if your not racing. I can't remember what mine is cruising at 70 but someone will let you know. Do a search too, there is plenty here and online.
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