Gearing/tire size change calculator

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SS
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Gearing/tire size change calculator

Post by SS »

I'm only a few days from making some wheel/tire/gearing changes to my 82 CBX, I went looking for some calculations that would tell how these changes would effect my bike speed/gearing.

I found this site that is very helpful. :idea:

http://www.sgmotorsports.com/mph.htm#GearSpeed

To use the gear speed calculator, you must have java script enabled, and there is even a test for the java script.

You will need to know your tire width (in MM), the tire aspect ratio, the transmission ratio (I used the primary reduction #'s) and the final reduction, (this is the number I changed to reflect the rear sprocket size from 36-44 teeth).

Since math :oops: wasn't a strong suit for me, I was thrilled to find this, and wanted to share.

This site is easy to use and gave me some numbers to compare.

:D
SS

#5671

Someone who thinks logically provides a nice contrast to the real world.

01 XL1200C 83 CB1100F 82 CBX 80 CBX

so far!!!!!!!!!!
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User avatar
SS
Forum Regular
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Posts: 86
Joined: Wed Mar 05, 2003 4:37 pm
Location: Just south of Graceland
Contact:
Contact SS

Tire size

Post by SS »

Another link I found helpful for estimating speedometer error.

http://www.sgmotorsports.com/tiresize.htm#TireSize
SS

#5671

Someone who thinks logically provides a nice contrast to the real world.

01 XL1200C 83 CB1100F 82 CBX 80 CBX

so far!!!!!!!!!!
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