Optimum RPM's?

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Old 04-14-2007, 04:45 AM
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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.



 
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Old 04-14-2007, 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..
 
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Old 04-14-2007, 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.
 
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Old 04-14-2007, 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.

 
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Old 04-14-2007, 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.
 
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Old 04-14-2007, 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
 
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Old 04-14-2007, 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.


 
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Old 04-15-2007, 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.
 
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Old 04-15-2007, 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
 
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Old 04-15-2007, 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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