For some time now, a creeping air loss in the rear wheel annoys me. At the last check it was over 1bar in 3 weeks and also at shorter intervals I often have to fill up some air. For the ride/tour the tire then holds the air so this loss is only after several days of service life to notice. Is there a simple way to locate the possibly leaking spot without expanding the rear wheel? Is the probability higher that it is on the tyre or valve li The tires were assembled in early 2022 with new angle valves by a tyre dealer, where I had delivered the tires. Running performance of the tires is now about 8000 – 9000km at approx. 4mm profile residual depth. No, that’s no joke. 2022 a tour with tent and pack through Sweden and this year a tour into the Harz and one to North Hesse. Otherwise, the whole afternoon rounds and Sunday rides and so on. I’m a little unwise now what I should do. Air loss is annoying, because I often have to replenish air, but manageable. From the profile depth, the tyres would certainly last another season. If the air loss is due to a leaky valve, the wheel has to be removed anyway and the tire is pulled off the rim. In that case, I will consider whether I should have a new tyre pulled up immediately. Or I will replenish this season with regular air and get myself for the next season. on just new tires. Suggestions on your part?