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rpm--mph

  • Thread starter Thread starter shepgs850
  • Start date Start date
S

shepgs850

Guest
hit a bird today which smashed my speedo on my gs850
can any one tell me the rpm i need to be doing for the following speeds
30mph,50mph,60mph and 70mph
i'll use this as a guide til i sort a new speedo out
thanks all
 
shepgs850 said:
hit a bird today which smashed my speedo on my gs850
can any one tell me the rpm i need to be doing for the following speeds
30mph,50mph,60mph and 70mph
i'll use this as a guide til i sort a new speedo out
thanks all
Click to expand...

May be of some use: (gs 650)

In 5th gear as follows:
30=2500RPM
50=4000RPM
60=4600RPM
70=6000RPM
 
A good rule of thumb for 750's & up, from that era. 1000rpm = appx 15mph. 2000 = 30, 3000 = 45, 4000 = 60, etc. It will be very close.
 
rphillips said:
A good rule of thumb for 750's & up, from that era. 1000rpm = appx 15mph. 2000 = 30, 3000 = 45, 4000 = 60, etc. It will be very close.
Click to expand...
Yup, rather close. Don't know if the G and GL models are geared any different, but my (wife's) '82 GL does 14mph/1000rpm.
That is according to GPS, which is conveniently close to what the speedo reads, too. \\:D/

Therefore:
3000 rpm = 42 mph
4000 rpm = 56 mph
5000 rpm = 70 mph


.
 
7,200 105 ish, (had to do it once you know, damn 85 mph speedo)
 
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