Jared,
I just finished my conditional inspection on my model four.
This inspection showed a very rough, very noisy bearing. During disassembly of the wheel to replace tire and tube, I messed up a wheel bolt. Ended up just ordering a brand new nose wheel from Aircraft Spruce for $36.00 which includes new bolts and new sealed bearings. My axel sustained no damage from the bad bearing so was lucky there.
I think I will from now on disassemble the nose gear each year for bearing check, clean and relube bellville washer set and reset tension to prevent shimmy.
It is not a difficult job.
FYI, the original bearings made 900 hours so are pretty durable. This was my third nose gear tire and tube since the Kitfox was new in 2003.