Calling Jonboy!

The speedo is driven is off the front wheel on the SV650 so changing sprockets will not affect it and therefore a speedo healer is not needed.

Originally Posted by Valman

The speedo is driven is off the front wheel on the SV650 so changing sprockets will not affect it and therefore a speedo healer is not needed.

thanks. may look into it when changing c&s next.

Originally Posted by paulthewitt

on a K3 where is the speedo readout from?
is it from the front wheel or the gearbox?

and wold it affect the read out if oyu changed the cog size?

Yes it would.

The SV takes the drive from the front wheel as has been stated. Larger rear sprocket means better acceleration. This may cause the front wheel to lose contact with the road surface. Without this traction on the front wheel, it will start to spin slower hence false readings on the speedo.

Originally Posted by BigApe

Yes it would.

The SV takes the drive from the front wheel as has been stated. Larger rear sprocket means better acceleration. This may cause the front wheel to lose contact with the road surface. Without this traction on the front wheel, it will start to spin slower hence false readings on the speedo.

Quite right.

Moving it to the back wheel / gearbox won't help that much either when you actually spin up the rear tire due to the shorter gearing, giving you again a false reading.



So I'd say you'd be better off with 2 or 3 sensors (front & back wheel + gearbox) connected to a computer, which would instantly average them and give a somewhat more precise reading.

Or get a yourself a f'in GPS.

[Viney]

Originally Posted by Flamin_Squirrel

Higher revs resulting in reduced fuel economy and more vibes, obviously.

I used to run a 14t front sprocket. On the motorway it was terrible. The bike revving around 1000rpm more than normal, resulting in higher fuel consumption and a really stessfull motorway journey...however, around town, it was fantastic