Hi all, new minicab owner here. I’ve tried the search function but not come up with a solid answer. id like to fit some new wheels to my Truck as the old tyres are bald. I don’t want to lift the truck but would like to go for a 13 inch wheel. Has anyone fitted 13’s without any mods to anything and if so what wheel width and offset did you use. I’m in the uk and I’m struggling to find a wheel suitable. Thanks in advance
So long as the OD of the mounted tire is the same or less than the stock ones, and the width doesn’t increase too much you will be fine. The Hijets had 13-inch wheels with a lower profile tire as a stock option.
What is the OD of the stock tire? 5-inches is 127-mm. 130% of that is 165-mm. So, 165sr##13. The ## is the aspect ratio, of how tall the sidewall is compared to the width. To find the ## you need to know what OD you need. A 165 sr78-13 would have a side wall height of 78% of the 165-mm, or or 128-mm, or 5-inches. You double that for 10-inches, and add it to the 13 for an OD, of 23-inches If your stock tires are 22-inches OD: You subtract the 13 from the 22, to get 9-inches, and divide it by 2, to get the tire height of 4.5-inches, or 114.3-mm. Dividing that by the tread width of 165-mm, gives you an aspect ratio of 69.27%. So, use 70%, and a 165SR70-13 tire.
The backspacing is what really matters. This is a good primer on what it means, and how to measure it for your truck..
