Exact speed





PaNDeM1C

Your Disease.....
Donating Member
Registered
#1
I am running a 43 rear sprocket with no speedohealer... and if I'm going 90mph indicated what would the actual speed probably be? Curious.

Thanks.
 

Professor

Hayabusa Immortal
Staff member
Administrator
Registered
#4
7.5% difference in gearing..... ~5-7% speedo error. Figuring 5% speedo error 79mph Figuring 7% speedo error 77.5mph
 

Warputer

Father of 4=Madness
Donating Member
Registered
#5
Reminds me of my old Jeep . Between extreme tire size changes and gear swaps , I didn't have a clue as to what speed I was running .
 
#11
I've made no modifications to my bike, but the speedo is off by a good margin. I determined this by using a GPS to get my actual speed. At 90 indicated, I'm running about 84. If you have someone who has a handheld GPS, you can check it that way.
 

delboy

God save the Queen.......
Donating Member
Registered
#13
I've made no modifications to my bike, but the speedo is off by a good margin. I determined this by using a GPS to get my actual speed. At 90 indicated, I'm running about 84. If you have someone who has a handheld GPS, you can check it that way.[/Quote]

If thats the case, the true speed with a 43 cog Pan would be:

(40/43) x 84 = 78mph OK me old mucker
beerchug.gif
 

Similar threads




Top