Hello, I would like to bring a recently purchased caravan over the Tüv and need accordingly new tires. The WW is from 1967 and in the letter it says it is a “King II” of the company Nieper. However, no information about what I can do for rims and mature on it, or anything else. I generally find no information about the trailer on the Internet. I would like to provide the current rims simply with new tires – that’s 145 R 12. However, the quite rusty ones are from outside, since The question is now, what can I do about it, so that it comes over tüv? And what is the most cost-effective solution? The WW weighs only 590kg maximum and will not be drawn faster than 80kmh. I thank you for your advice!