Insert your existing wheel and tyre specs, and the desired size, and the outcome is shown on the diagram.

Your existing setup

Existing Tyre
Existing Wheel

Your new setup

New Tyre
New Wheel
Your Results

Existing

New

Diameter
595.5mm
637.2mm
Circumference
1870.8mm
2001.8mm
Poke
38.2mm
97mm
Inset
114.2mm
157mm
Speedo error
0%
-6.54%
Reading at 30mph
30mph
28.04mph
Reading at 60mph
60mph
56.07mph
Ride height gain
0mm
20.85mm
Arch gap loss
0mm
20.85mm
Wheel Fitment Guide

Compared to your existing wheel, this new wheel will have an inner rim which is 42.8mm closer to the suspension strut. The outer rim will poke out 58.8mm more than before.

The strut shown in the diagram is for show only. Don't worry if the wheel looks like it fouls!

Bear in mind most tyre manufacturers vary slighty from the specs, and that it could be dangerous to run tyres on wheels they aren't designed to fit.