Originally Posted by turboparker
Ordered a couple sets of those last week just to have 'em on-hand. I have always used Boca replacements when doing major overhauls on my RC engines. I used them in the motors, drivelines, and hubs on my RC cars back when I raced on & off-road electrics. I've also never had one fail or even get rough.
I'm going to swap the Bocas in for the stock bearings before even flying it. No sense in messing around with any potential problem of slinging a blade in flight.