Jump to content
Yamaha Tenere 700 Forum

Tyre size and speedo reading


Recommended Posts

So I’m looking at buying a rear tyre that is 140 80 r18 instead of 150 70 r18 . Seeing that it is a taller tyre would it affect my speedo  reading  seeing that it is the rear tyre. I’m hoping it would bring the speedo reading closer to a true reading  if the tenere has to travel further for 1 revolution of the tyre, or would it work better if I had a larger front tyre.

Link to comment
Share on other sites

A couple of things to consider:

The theoretical difference in diameter between an 150/70 and e 140/80 is only +-2%. When installing a 140 width tyre on a 150 wide rim the profile of the tyre gets flattened a bit because it is pushed out wider which pulls the circumference in. So in practice the difference in diameter between both is marginal.


all of the above is mute imho, because iirc the speed is read from the front ABS ring.

  • Like 1

Destinationworld.be - Journeys... not just travels | Discoveroverland.eu - Inspiring overland travel meetings

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Our Friends

Tenere across the USA

Tenere 700 Forum. We are just Tenere 700 owners and fans

Tenere700.net is not affiliated with Yamaha Motor Co and any opinions expressed on this website are solely those of ea individual author and do not represent Yamaha Motor Co or Tenere700.net .

  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.