Not all rims are suitable for the fenders of your VW, which many people aspire to. To change this, you can buy wider rims, or opt for the use of track wideners (wheel spacers). A track widener is mounted between the brake drum or disc and the wheel so that the wheel comes out further.
Note: Some wheel spacers come with bolts, please check the dimensions carefully before mounting the rims. If no bolts are supplied, this does not mean that longer bolts are not necessary. Check the length of your existing bolts, add the thickness of the wheel spacers and see if there is enough thread left. If not, order additional bolts.
Note: The use of wheel spacers is not permitted in all countries, consult your local control authority.
Useful information from Paruzzi magazine and from our YouTube channel :
Look for more technical articles on the page Paruzzi Magazine