Beautiful design, easy to read display - however, installation and commissioning may with obstacles

The device is well done, the description is not available in English only. I'm not a freak in reading instruction manual but when first setting requires you then nevertheless times. With bumpy school English I then got stuck when setting the wheel size. My bike was no's. Ultimately helped here the homepage "radforum.de" with a Radumfangstabelle. About my tire labeling gave this a wheel circumference (CIRC) of 2280 mm. While the table of the manual "tire size" goes so far not, but I could see the determined CIRC - and I need only ultimately - enter.
Made in China was now not as the big surprise but somehow with the Chinese much less ?! So I realized that my spokes are too thick for the mounting of the sensor magnet. After enlargement of the column with a precision mechanic round file but also that was done.
In short, too big wheel, spoke too thick ... with patient and skillful "muddling through" in installation and adjustment (1 star deduction) a good price / performance ratio.