Optimum RPM's?

Old Apr 14, 2007 | 04:45 AM
  #1  
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Default Optimum RPM's?

What RPM's do you like to keep your bike at to be in that powerband?
If it differs from street to dirt post both please ( >50mph)

Im used to 2 stroke MX bikes (no gauges)so Im curious if our riding styles are similar on the 4 strokes.



 
Old Apr 14, 2007 | 07:34 AM
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Default RE: Optimum RPM's?

I think dyno charts have shown this bike to have a fairly broad torque curve. Good usable power is available form around 5000RPM, but the meat of the powerband is from 7000-9500. Power seems to trail off a little after that..
 
Old Apr 14, 2007 | 03:52 PM
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Default RE: Optimum RPM's?

In the dirt mine is rideable from idle to redline. If I'm just out putzin around its between 2nd-4th 3000-5000 rpm. Makes for a good leisurely pace and its quiet. For a more spirited pace, 2nd and 3rd 5000+ which is just enough that when standing, a crack on the throttle and big jerk on the bars the front tire will skim over roots and holes. I'm not good a wheelies so I just try to skim the stuff not launch over it.

On the road just cruising its happy from 3500-6000. I will shift ~5500 and it drops just below 4000 with each shift. The only time that doesn't work too well is the 5-6 shift. But again its running the speed limit but getting up to speed quietly. If I'm in a hurry 6000+ all the way. I find the noise vs speed to be about perfect at 55 mph, up to 65 isn't bad either, beyond that the exhaust and wind are killer.
 
Old Apr 14, 2007 | 05:17 PM
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Default RE: Optimum RPM's?

Mine sits at 7500rpm at 110kph 68ish mph. I've got the 13tooth front tho.

 
Old Apr 14, 2007 | 09:58 PM
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Default RE: Optimum RPM's?

Im talking about what rpm do you like to keep it atand downshift or upshift to keep it there regardless if your insecond or fifth gear.
 
Old Apr 14, 2007 | 10:39 PM
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Default RE: Optimum RPM's?

Since my new 45T has been in service, I find it hard to stay under 6000rpm's.

I actually like to be around 7000/8000in the woods.........that may seem high but I like to be able to kick it up real fast if needed and if I'm below that rpm it'll take a bit to get up.

I have to get used to the new gearing, but in general I like to be on the high side for dirt and take it real easy on the street. Most of it is by sound and feel too as I usually have my mirrors folded down in the trails so I can't really see the dash. Seems ok for me and my style, I'm pretty new at this, so I could be completely off in what I'm saying and what I actually mean............................

Dave
 
Old Apr 14, 2007 | 11:31 PM
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Default RE: Optimum RPM's?

I felt it really come on around 6k, maybe sooner with the HMF slip on. It was pretty blah under 4k I thought...



On my 450f its 'hold on this can get scary' at any revolution faster than whats acheived by kicking it over.


 
Old Apr 15, 2007 | 03:04 AM
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Default RE: Optimum RPM's?

I find that 6 - 7 thousand is pretty good for the trails. It tends to bog below 4 thousand, and 5 thousand is ok cruising rpm in my opinion.
 
Old Apr 15, 2007 | 12:53 PM
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Default RE: Optimum RPM's?

Minepulls goodfrom 2k rpm, I don't usually go over 8k rpm. I'm running 13 / 45 gearing but engine / exhaust / carbie are stock
 
Old Apr 15, 2007 | 06:04 PM
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Default RE: Optimum RPM's?

I found that for wheeling you have to get the rpms up to about 5000 then let off for a second, and hit it. I usually keep the rpm a little low in town because its sooooooo loud I don't want to draw more attention than necessary. But my average rpm range is 5-7000.
 

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