I broke the magnet in 5 pieces (bearing puller) and thought that's the end. Superglue und some epoxy resin helped. There is no difference in the behaviour of the sensors. The magnet ring is just a 4 segment magnet, 2 segments magnetic and two not. It's no part of the torque sensor, just for...
My name is Stephan. I'm riding EMTB since 2010. I build one myself and used it for 20 k km without any problems. Now I own a BMC Fully Steps 8000 that makes lot of trouble. Errors, worn bearings,... That's why I'm here. Cheers Stephan