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Today it happend again at the end of a 2 hour ride. Again on the gravel path doing around 20km/h. Only happened a few times and I’m not sure I can replicate it at will. it is weird

Thanks again for your input. I tried using the bike for commuting to work yesterday (17km) and it was back to normal. Smooth cut off and no speed readings all over the place. I didn’t do anything, but it seems to work ok now. Very weird

Thanks for the detailed reply. It’s a 25 km/h limit on the bike. A Rail 9.8 Yes, That’s why the cut off Is so abrupt when it suddenly reads 28

Hi Thanks for your reply. I did have a look, but can’t find anything that looks out of place. The magnet is attached with 2 screws and look ok. Same with sensor

After breaking my rear derailleur and changing it, my Purion reads the wrong speed when it hits about 20km/h. Suddenly it jumps between 28-14 and that makes my motor cut of very abruptly. No hacks or trimming involved. It behaves normal when on the trail, seems to only happen on flat gravel...