SOHC.co.uk Forums > CB500/550

Rev counter

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bobv7:
Can any of the Learned Members tell me what the rev counter should be reading in top gear at a selection of normal road speeds? I'm assuming that my bikes' gearing is standard. Cheers. :)

deltarider:
Depends, CB500 or CB550? For a CB500 it is real simple. Final drive ratio is 2,0. In 5th gear:
  80 km/h = 4000 rpm,
100 km/h = 5000 rpm,
120 km/h = 6000 rpm,
140 km/h = 7000 rpm,
160 km/h = 8000 rpm.
Don't you love the decimal system?  ;)
For a CB550 it's different and the CB550K3 on the European continent is different to the K3 in other markets as it had a 34T rear sprocket where other models had 37T.

bobv7:
Cheers mate, so now I'm wondering where to get a rev counter serviced! :(

SteveD CB500K0:
He does indeed. Even sourced a spare part (from Ash) for mine.

Excellent job.


Sent from my iPhone using Tapatalk

peterengland:
why kmh?
Looked at mine today
30mph = 2500
40mph = 3000
50mph = 4100
didn't go above 50 today....

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