I bit the bullet and bought the new Max5 and 56113 800kv combo today. It's the new Max5 with the temp sensor
I bought it for my new Xmaxx roller I bought on ebay because it's light(ish) but I'll put the motor to the test in my 5iveB brushless conversion. I'll soon know if it is only 5800w as it will overheat for sure
Fingers crossed it doesn't break a sweat, but I'll post back with my findings