So just installed 27" tires and will be going to 29 at some point after. Definitely a nice change. These are aggressive tires so outside diameter probably close to the 28 or 29" mark.  I'm looking to change the speedometer so it reads correctly. I know someone here knows how. Can you either pm me or share with me how to do this process? Thanks!

[2015 Z Force 800 53/Trail EPS]

With the key off hold both buttons in while turning the key on and continue holding them until you see a three-digit number displayed at the bottom of the screen. Release the buttons. You then cycle through the numbers with the buttons-one changes the position while the other increases them from 1-9. When done hold both buttons in until the display returns back to normal. This saves the setting...and must be done otherwise it goes back to the previous setting.

The consensus is the larger the tire, the larger the number. I can find no measurement correlation between the number and tire size no matter what measurement I use but I went from 26s to 27s and increased the far left number by 1 and it's pretty close. I could fine-tune it with the other digits but its right with the GPS MPH 95% of the time so...   

Sweet! Thanks NMK!

Sweet! Thanks NMK!

Hello everyone, do you know what the original number is, I changed it by mistake... Zforce 800ex 2017. thanks

[2015 Z Force 800 53/Trail EPS]

Sweet! Thanks NMK!

Hello everyone, do you know what the original number is, I changed it by mistake... Zforce 800ex 2017. thanks

When I am out in the shop today I'll see what it is. I remember I only went up one number on the first digit. Sorry...it's been a few years. 

[2015 Z Force 800 53/Trail EPS]

Sweet! Thanks NMK!

Hello everyone, do you know what the original number is, I changed it by mistake... Zforce 800ex 2017. thanks

When I am out in the shop today I'll see what it is. I remember I only went up one number on the first digit. Sorry...it's been a few years. 

OK, the original setting on mine with the 26" tires was 529. I went to 27s and went to 629 which was close enough so I went no farther.

Does anyone know how to do this on a 2022?

...and how long to you have to hold the two buttons down?  I've held mine for 60 seconds and nothing happened.  No matter what combination of buttons and ignition I do...nothing happens.

[2015 Z Force 800 53/Trail EPS]

...and how long to you have to hold the two buttons down?  I've held mine for 60 seconds and nothing happened.  No matter what combination of buttons and ignition I do...nothing happens.

The holding of the two buttons only works on the pre-2018s. No one that I know of has posted how to do it after that.

https://youtu.be/RtQEwKCkOlA


Try this

[2015 Z Force 800 53/Trail EPS]

Great! Think I'll clean this up and post it in the How Tos.