Thank you very much Jacob, that’s a great ELI5-level explanation!
So it’s all down to increasing the friction between the knurled bearing and the bearing housing. Some potential options:
- Use an aluminum bearing cap instead, which apparently worked for saskatchewanian;
- Make the inside of the bearing housing knurled too, is that possible?
- Weld a small bit on the bottom of the bearing, drill a hole correspondingly on the bearing cap to lock that bit, so to implement a mechanical stopper like the latest generation. Is this possible?
- Overtighten the bearing cap, to more than the suggested 5-6 Nm. I know this is possibly the worst idea, as the user manual explicitly stated that it will damage the bearing and ruin the warranty - but, just asking scaredly in a whisper, what makes the Schlumpf’s bearing special that it get damaged in such a case? Because I have bearings on normal hubs overtightened to, like 10Nm or so (not actually measured), it only makes the wheel less smooth.
BTW the kind guy who makes the titanium frame offered to lend his own frame to me to have a test before I decide whether or not to order one. What would be the best practise to try to reproduce this issue? Like doing abrupt start and stops on high gear?