Author |
Message |
Moosestang
| Posted on Friday, December 18, 2009 - 12:36 pm: |
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I'm trying to use this calculator to figure the speed in each gear, but I don't know what the final drive ration should be. http://www.gearingcommander.com/ It wants final drive ration front/rear? |
Froggy
| Posted on Friday, December 18, 2009 - 12:51 pm: |
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It is listed on Buell.com, 2.815:1 Also, use this premade calculator http://www.badweatherbikers.com/buell/messages/290 431/Buell_gearing-421366.xls Only issue is the tire size it comes with is way to large, set it to 24.4 |
Moosestang
| Posted on Friday, December 18, 2009 - 01:24 pm: |
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That doesn't seem to be working right. i put in a speed and only get a 1 for rpm in 1st and 2nd, zero for the other gears. I saw 2.8 listed as secondary drive, but inputing that in the other website gave unrealistic speeds. |
Froggy
| Posted on Friday, December 18, 2009 - 01:55 pm: |
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It is working fine for me (Office 2007). Only change the numbers in the yellow boxes. |
Froggy
| Posted on Friday, December 18, 2009 - 03:00 pm: |
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Out of boredom I modified it and added the XB bikes. http://www.froggypwns.com/Buell%20Gearing.xlsx (Message edited by froggy on December 18, 2009) |
Moosestang
| Posted on Friday, December 18, 2009 - 04:53 pm: |
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I got it working. Had to download it again because some of the numbers weren't right the first time. |
Xtreme6669
| Posted on Friday, December 18, 2009 - 09:15 pm: |
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so what did the top speed in each gear come out to? |
Milleniumx1
| Posted on Friday, December 18, 2009 - 09:34 pm: |
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Froggy, that pre-made calculator is cool - Thanks for sharing. Curious why it would have had a much higher tire size number than the 24.4 you mentioned. Your value looked accurate against what I've seen in my own riding ... Mike |
Froggy
| Posted on Friday, December 18, 2009 - 09:49 pm: |
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quote:so what did the top speed in each gear come out to?
Download that second link and see, I saved it with the settings at redline. Incase if you don't have Excel or Excel Viewer installed:
1125R, | | | Gear, | 1st, | 2nd, | 3rd, | 4th, | 5th, | 6th, | | Engine speed (rpm), | 10500, | | Speed (mph), | 66.1, | 93.0, | 117.9, | 138.6, | 156.2, | 169.5, |
1125CR, | | | Gear, | 1st, | 2nd, | 3rd, | 4th, | 5th, | 6th, | | Engine speed (rpm), | 10500, | | Speed (mph), | 60.9, | 85.7, | 108.6, | 127.7, | 143.9, | 156.2, | No clue how he came up with that number. I installed a race computer with speed sensor on my XB about a year and a half ago. To program it I needed the tire size, so I used a dab of whiteout on the wheel, then rolled it in my driveway, and got roughly 76.6" inches for one full revolution. It was on a Pirelli Scorpion Sync tire with who knows what wear and tire pressure, but whatever it was close enough for my intents. |
Ron_luning
| Posted on Sunday, December 20, 2009 - 01:54 am: |
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Sorry about the 26" tire diameter. I was at work when I made the calculator (!) so I had to use google to find out what the typical diameter would be. Can you believe that something on the internet was not correct? |
Milleniumx1
| Posted on Sunday, December 20, 2009 - 11:03 am: |
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Ron, something on the internet wasn't 100% true?! You've ruined my faith Sir ... I'll still call you a friend since we're both Buell guys, but please don't let it happen again Mike |
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