So what front bearing does the NitroTec come with and how can you tell the difference?

I had about 2-3 gallons on mine I would guess.I think a repinch and a set of bearings will buy me another 2-3 gallons its my second one this year that started acting up within about the same amount of time.Engine runs cool compared to my Orion engines.I don't think it has seen over 235 f. Super smooth,great fuel milage and plenty of power for the buggy.

If you were going to put new bearings in a Nitrotec what ones would you use?

Also running Byrons 25% / 11%. I did find very slight signs of rust/corrosion on the crank and rear bearing.I was running it out of fuel at idle after dumping the tank at the end of every race day.