RE: Saito 125 engine bearing failure
Paul of rc bearings has my vote on ceramics. Have them on my YS110.One of them had a heads down crash recently- forgot to fix the wing bolts on my Yak-ouch!.Engine survived with bearings intact.I reckon with normal steel bearings, it would have necessitated a change.
In the process of replacing all my 5 saito125s with ceramics. I find corrosion a problem in my setups somehow.