Speed and Gearing Calculator for the EX.... [Archive]

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bmw500hp

07-31-2003, 03:01 PM

This link provides an gearing calculator relating to mph and taking into consideration your tire diameter...It may be old news but just thought to post it for those who might find it interesting.

http://home.earthlink.net/~gellett/400ex.htm

JOEX

07-31-2003, 03:11 PM

Thanks! I was looking for one of those recently. There have been a few posted here but i've never seen that one. The others were generic.

Joe

dannyboy20

07-31-2003, 03:14 PM

cool i didnt know the 400 ex could go over 500mph with a 5 tooth rear sprocket . :p

JD400exrider

08-01-2003, 03:04 AM

Thanks mike. Good useful info.

ZSK

08-01-2003, 01:33 PM

Is there one for a 300ex?

sweet300ex

08-01-2003, 03:13 PM

Originally posted by cleanshave300ex
Is there one for a 300ex?
just change the rev limit and it should be right

JOEX

08-01-2003, 04:51 PM

Originally posted by sweet300ex
just change the rev limit and it should be right
What about the transmission gearing? Doesn't that make a differance or is the ratio the same for the 300 as the 400?

Joe

ZSK

08-02-2003, 05:46 AM

What is the rev limit on a 300ex?

08-02-2003, 06:37 AM

mine will not do 25 mph in 1st gear with my stock gears...wtf?