Yo Wayne,...yep, the magnet ring will be a challenge, with some trial and error. But it's also an opportunity.... please consider to enhance the magnetic field, rather than just matching it. In collaboration with TrailTech here about increasing our stator output, they claim the flywheel magnet is the limiting factor. With today's magnets, it may be reasonable to go even lighter in magnet weight while achieving more output. To have a complete replacement flywheel would be great, and particularly if we can get more stator output at the same time.
I get what you're saying and this is a convo I had already with C27 actually..... I have looked at stronger types but the problem with some of them is the temperature they will repeatadly stand before degradation of strength (typically only 60 degC). I just don't know how hot they get in service. For the moment I am having the flywheels done with stock magnets and, if they prove to be the complete solution with regards reliability, I can look at increasing the magnet strength afterwards. It will be easy to alter the design to accomodate a revised magnet later on.
I figured that most of the guys having flywheel problems will be the racers who are using higher revs more of the time, and they don't tend to have lights on them so could manage with the output we have at the moment.
One thing at a time with any given fix I feel....
Besides, I am getting close to twenty-grand into these 'fixes' already and I only set out to make my own quads completely reliable! It's just that everything is cheaper in quantity, so quantity I have bought! I hope someone else out there will want some of what I have had made or I'll have some very expensive ornaments! It's not that I'm running out of money it's just that it does seem to have run away with itself.... I guess this sort of thing is what sunk C'Dale....
Ah well....