What is the correct bearing  I want to get away from the steel or brass ball keeper
Fred Q

   It's an oddball size, unique to OS, but now available from Boca Bearings. I am also sure Randy has some.

     Brett


p.s. https://www.bocabearings.com/products/bearing-applications/rc-engine-bearings?ProductType=2&ItemMakes=OS_ENGINES&ItemModels=VF_ABC_RC&ItemFeatures=40

    I always use the cheapest variety, even the low-end bearings are much better than the stock units (although the stock bearings are generally OK for a very very long time).  But you can certainly get more expensive bearings for it, $90 for a bearing set on a $125 engine - even if it is the best-ever $125 engine - it a bit much for my blood. I am both an engineer and a stunt flier, so I can't really help being cheap...