2012 Touring MPH vs RPM
#31
07-03-2012 | 10:38 PM
Tourer
Joined: Jun 2012
Posts: 374
Likes: 1
From: Bakersfield
Actually I get good gas mileage, but if I'm in 6th gear under 80 mph I can feel the motor bogging down and I generally don't cruise at 75. I'm more concerned with performance over mpg. I tend to ride a little on the aggressive side though. To each their own.
#33
07-03-2012 | 10:56 PM
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Joined: May 2011
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From: nebraska
#34
07-04-2012 | 01:14 AM
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Joined: May 2008
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From: Ashland Ohio
Apparently my bike is different than everyone elses. I routinely cruise in 6th gear around 60 mph at just over 2000 rpm and it does just fine. Sometimes I go even slower... 
If I need to accelerate, I twist the throttle and it accelerates. If I need to accelerate faster I downshift.
If I need to accelerate, I twist the throttle and it accelerates. If I need to accelerate faster I downshift.
I learned the hard way in 09, and bent my crank from .0035 to .008 and I could feel the difference in my hands going numb.
Food for thought is all my brother member.
#36
07-04-2012 | 10:58 AM
Thread Starter
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Road Warrior
Joined: Apr 2011
Posts: 1,443
Likes: 9
From: North Carolina
I think Joe's original reply was good advice to you. I didn't see the need to critisize him. You don't have a tach, so he was suggesting monitoring the speed instead and staying out of 6th gear unless you were hitting 70 mph. You may find your bike is actually happier at 75 in 6th gear, though.
I know how you feel about all the recent lugging posts. My toughest challenge sometimes is trying to maintain 45 mph on some roads (Malibu Canyon in CA. is my daily commute). 3rd gear puts me around 3200 rpm which I feel is racing it a bit in that gear (but perfect in 5th and 6th gear), but 4th gear puts me around 2500 or 2600 which I feel is too low. I'm sure you'll get some real good advice here... good luck!
I know how you feel about all the recent lugging posts. My toughest challenge sometimes is trying to maintain 45 mph on some roads (Malibu Canyon in CA. is my daily commute). 3rd gear puts me around 3200 rpm which I feel is racing it a bit in that gear (but perfect in 5th and 6th gear), but 4th gear puts me around 2500 or 2600 which I feel is too low. I'm sure you'll get some real good advice here... good luck!
What I was hoping for is for someone to go out run down the road in 6th gear and go 60mph, 65mph and 70 mph and report the rpms at each speed. As well as in 5th gear. That way I and the rest of the crowd will know.
#37
07-04-2012 | 10:59 AM
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Road Warrior
Joined: Apr 2011
Posts: 1,443
Likes: 9
From: North Carolina
No it is NOT different. What is different is you are one of the last hold outs from running the engine too slow for conditions. 65 in 6th is fine, to the OP, but 60? That is right about the edge of things to go awry. Sounds cool and all, but in reality, you need to ride more like 2500 than 2000 for a lot of reasons, but mainly because of the crank. Crank receives an unnecessary 'pounding', and there really is about a 1/10,000 chance it could be YOUR crank takes a poop. But... also, the trade in frequency plays into this, too.
I learned the hard way in 09, and bent my crank from .0035 to .008 and I could feel the difference in my hands going numb.
Food for thought is all my brother member.
I learned the hard way in 09, and bent my crank from .0035 to .008 and I could feel the difference in my hands going numb.
Food for thought is all my brother member.
#38
07-04-2012 | 11:41 AM
Road Captain
Joined: Jan 2009
Posts: 739
Likes: 2
From: St. Louis
What no one has mentioned is the state of tune of each individual bike. For those with stock engines, I can understand where it would feel as if it were not pulling well @ lower RPM's (2200 or so) because of the stock lean tune. Whereas those with a Stage 1 may feel comfortable in that lower range. Also, some have gone with different cams which alters the way the bike feels. I have the FM 107 w/555's and my bike starts 'smoothing out' around 2200 RPM's and pulls strongly form 2500 on up. What I'm saying is that there is no 'one answer that fits all' riding conditions.
As for the OP, here's a list of MPH vs. RPM's using the final drive ratio of 2.875 (which your bike has) a 1:1 6th gear ratio and a tire heigth of 25.8. This chart doesn't take into account speedometer inaccuracy or other than stock tire sizes. My tire info came from the Michelin website using what they refer to as an 'in use' tire dimension. (mounted and inflated) The info can be found here, on page 10. http://www.michelinmotorcycle.com/pubs/fitment2012.pdf
The formula used to get these numbers came from here: http://www.wallaceracing.com/gear-speed.php
They have numerous formulas for all types of calculations. Hope this has been of some assistance in answering your original question.
6th gear
6500 RPM 173.53 MPH
6000 RPM 160.18 MPH
5500 RPM 146.84 MPH
5000 RPM 133.49 MPH
4500 RPM 120.14 MPH
4000 RPM 106.79 MPH
3500 RPM 93.44 MPH
3000 RPM 80.09 MPH
2500 RPM 66.74 MPH
2000 RPM 53.39 MPH
1500 RPM 40.05 MPH
1000 RPM 26.70 MPH
5th gear
3500 RPM 79.19 MPH
3000 RPM 67.87 MPH
2500 RPM 56.56 MPH
2000 RPM 45.25 MPH
As for the OP, here's a list of MPH vs. RPM's using the final drive ratio of 2.875 (which your bike has) a 1:1 6th gear ratio and a tire heigth of 25.8. This chart doesn't take into account speedometer inaccuracy or other than stock tire sizes. My tire info came from the Michelin website using what they refer to as an 'in use' tire dimension. (mounted and inflated) The info can be found here, on page 10. http://www.michelinmotorcycle.com/pubs/fitment2012.pdf
The formula used to get these numbers came from here: http://www.wallaceracing.com/gear-speed.php
They have numerous formulas for all types of calculations. Hope this has been of some assistance in answering your original question.
6th gear
6500 RPM 173.53 MPH
6000 RPM 160.18 MPH
5500 RPM 146.84 MPH
5000 RPM 133.49 MPH
4500 RPM 120.14 MPH
4000 RPM 106.79 MPH
3500 RPM 93.44 MPH
3000 RPM 80.09 MPH
2500 RPM 66.74 MPH
2000 RPM 53.39 MPH
1500 RPM 40.05 MPH
1000 RPM 26.70 MPH
5th gear
3500 RPM 79.19 MPH
3000 RPM 67.87 MPH
2500 RPM 56.56 MPH
2000 RPM 45.25 MPH
Last edited by Gearhead3; 07-04-2012 at 12:04 PM.
#39
07-04-2012 | 12:00 PM
Ultimate HDF Member
Joined: Oct 2006
Posts: 5,977
Likes: 78
From: Nevada
Didn't mean to criticize him, Just a comprehension problem between us. All I was looking for was a speed reference to rpm.
What I was hoping for is for someone to go out run down the road in 6th gear and go 60mph, 65mph and 70 mph and report the rpms at each speed. As well as in 5th gear. That way I and the rest of the crowd will know.
What I was hoping for is for someone to go out run down the road in 6th gear and go 60mph, 65mph and 70 mph and report the rpms at each speed. As well as in 5th gear. That way I and the rest of the crowd will know.
http://www.andrewsproducts.com/PDF_f...osMPG-pg28.pdf
#40
07-04-2012 | 12:08 PM
Ultimate HDF Member
Joined: Oct 2006
Posts: 5,977
Likes: 78
From: Nevada
No it is NOT different. What is different is you are one of the last hold outs from running the engine too slow for conditions. 65 in 6th is fine, to the OP, but 60? That is right about the edge of things to go awry. Sounds cool and all, but in reality, you need to ride more like 2500 than 2000 for a lot of reasons, but mainly because of the crank. Crank receives an unnecessary 'pounding', and there really is about a 1/10,000 chance it could be YOUR crank takes a poop. But... also, the trade in frequency plays into this, too.
I learned the hard way in 09, and bent my crank from .0035 to .008 and I could feel the difference in my hands going numb.
Food for thought is all my brother member.
I learned the hard way in 09, and bent my crank from .0035 to .008 and I could feel the difference in my hands going numb.
Food for thought is all my brother member.