Does not fit easily on a standard wheelbarrow from hardware stores

My wheelbarrow still from GDR production. I bought it in the late 80`ern at the hardware store. As a tire Pneumant was raised, I believe that was natural rubber, because he has for years defied wind and weather and the sunlight. The wheelbarrow was virtually indestructible, until one day the tires lost air. So I have behaved before each use inflated the tire until my friends gave a new wheelbarrow. The "old" I kept still because I had so taken him to heart ;-)
The joy of new wheelbarrows did not last long, because the China tire was finished after the first winter. The valve had disappeared into the tire, inflating thus impossible. So I continued to use my East German workers, but showed further signs of decay by now were holes and cracks in the rubber. To me it was not possible to raise quality brand tires. I found everywhere only the same China-Ware, the yes not even survive a winter.

Eventually I decided to "rubber" to buy tires. The tires in the construction market, however, cost more than a new wheelbarrow! While rummaging at Amazon I found this yellow tires made of solid material. Based on the description, I was sure that they have to fit in my wheelbarrow and ordered 2 pieces. The delivery took place quickly and easily. The wheel makes a solid impression, to the long-term experience of course I can not say anything yet. The colors are loud and I really like, the wheelbarrow was virtually "pimped".

When assembling then the disillusionment. I understood it that the washer of the axle has 20mm diameter. So at least I have interpreted the image on Amazon. That was wrong, because the diameter referred to the axis. Since not clearly emerged from the description to me that hole in the red rim and thus the Achsaußendurchmesser 20mm is, I was duped and could not mount the wheel, since these openings in standard wheelbarrows are only half as large. In the "new" wheelbarrow I have drilled the holes and then mounted the wheel. It wandered along the axis back and forth, there's so-called collars are required which are not included here but in the. I've ordered the same 4 (redirect = true & ref_ = oh_aui_detailpage_o02_s00) and so again were added good EUR 7.50 including shipping.
As it me reluctant to drill my beloved GDR workers, I ordered an axis with the dimensions 20x102 for 8.70 euros including shipping on ebay ([...]). This axis has the peculiarity that a bolt M10x130 with in a thick axle sleeve infected with 20mm outer diameter. The collars were also the same with this. This completes the installation was very simple. Both wheels are going well and springs also fine. I actually do not get the impression that it is "solid material" because it springs almost like pneumatic tires. I hope that the yellow material is UV-resistant and the sun will harm the wheelbarrow nothing. In any case, the quality impression of the yellow / red Schubkarrenrads is significantly higher than all Baumarkt-China spare wheels, I've found.

Because in my opinion inadequate description regarding the Achsdurchmessers (the image of the axle fits in my opinion, not to do so), the lack of notice that the wheel is not actually intended for "standard wheelbarrows from the hardware store," and because the required collars Extra must be ordered and there is no mention in the description of it, I forgive a star less. It would be nice if that stimulates the seller to improve the description, because who reads all reviews by where it was eventually pointed out.