Hello all.

 

I am in two minds to upgrade my wheels on Roo.

 

They are standard 205/45 16's....

 

I am thinking of going upto 17"

 

The thing is after watching the wheeler dealers episode of the Jeep Grand Wagoneer, where Ant upgraded the speedometer gear because he put bigger wheels on I was concerned that I needed to do something similar when I put bigger wheels on....

 

Some people say the speedometer thing is attached to the gearbox nowadays.... (more accurate reading or something)

 

I don't want a false reading.... I don't want a speeding ticket etc....

 

Just want Roo to have a fresher look next year etc....

 

Thanks in advanced and may you all have a Happy & Merry Christmas & New Year 

 

From

 

Sean.

Your speedo shows now with the factory size / circumference / total diameter tyres on the 16" rims that you are going faster than you are.

 

When you fit the 17" wheels you are going lower profile tyres are you not, or a slight increase in total circumference.

That will keep the speedo the same or make it more accurate.

You are not fitting bigger tyres than are type approved for the car are you, or building a monster truck? 

 

http://briskoda.net/forums/topic/474054-bigger-wheels-for-a-few-days

 

http://briskoda.net/forums/topic/195448-17s-wheels

 

http://briskoda.net/forums/topic/211752-bigger-rims

 

 

 

 

Edited 16 December, 20223 yr by toot

Here is your guide to sizes / comparisons.

http://tiresize.com/tyre-size-calculator