They make a sensored version they named XERUN 60A and XERUN 120A those are the most reliable ESC's I've ever seen.
Myself running a 120A version it is the same as speed passion and give a big shot of power. I have run the 3.5t Trinity pulsar and the speed passion 4.0t.
with top speed of 105km/h with 2cell lipo and with the temp cut on(95degr.C), and never reaced the temp cut, this mean they are good.
Price by RC Market is 110.00 USD,fore this price it is worlds best ESC.
Thanks

Ed