M 99 model seems to rev harder than a lot of other people's here. at 100kph it sits on 4000rpm. Seems a little high where some pople with similair models are almost 1000rpm better.
I've got stock gearing and a 170mm rear tyre. It idles at 1000rpm if that makes any difference.
Seen I do a moderate amount of long rides would it be better to change to a less revvy gear ratio?

 

Have you tried changing into 6th gear, if so,your gearing is not standard

 

Yeah I should have added thats top gear.

edit: should add its 4000 not 5000 duh, but still seems a little high for a bike more aimed at roads than racetracks...

 

4000 RPM doesn't sound high to me.

 

mine's about 4k for 100km/hr

 

yeah I've a '94 model here which I believe runs the standard gearing and that sits at around 3,950 for 100kph. I've heard a couple of times that the previous shape CBR1000 (1989 through 1992) did 100kph at around 3750rpm, of which I can only assume is due tohigher stock gearing. As to how much truth there is to that I don't know.

 

You should have 42 teeth on the rear sprocket.

 

Mine also runs 100 km/t at 4000 rpm.

BTW the last time I ordered a new chain and sprocket, there were a difference between the models before and after 1996. As far as I can see now on the internet at my local dealer, the pre 1996 model has a 42 teeth rear sprocket, and the newer than 1996 models have a 41 teeth sprocket.
All of themhave 17 in the front.

I don't know why this is so, but that is the way the local Honda dealer sells'em

 

Hi

Look a this post:

https://cbrforum.com/m_419066/tm.htm

you'll see for the 87-88

Dragon64

 

My old girl was a 92 standard and as you can see by the pic she is doing a little over 4,000

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