[aqwut]

I think the lehner claims up to 100K with the 19 series... before they had English on their websites, they use to post that the 19 series can do 100000u/min.. I'm guessing that's the same as rpms.. ?
.. ... anyways.. the 1930/6 was my first good brushless motor.. went into stock emaxx... I ran at 12 Cells (around 45-50K).. no problem.. I then ran 18 Cells(70-75K).. although it got hot... it was never damaged...