Just checked my KO and im running the throttle in reverse. So try that if you have calibrated it. I presume your speedo calibrated ok when you changed your tx ???

it works then...but surely thats not right?

It is just the way the ESC see's the throttle input, it don't really matter which way it is set. Just like some servo's work the opposite way. Just remember it if you have to do it again.

Don't think of it as a throttle, it is just a signal you send using the throttle stick.

lol DCM beat me to it :p (honest)

If your getting full throttle and the brakes are working, and it calibrated ok with your tx in reverse then jobs a goodun :)

yes stuart it all seems fine when servo is reversed on transmitter and i run thru the set up ( calibration) bizzare
many thanks again mate for your help and you DCM:)

your welcome, if you need any other advice, just ask.

My Losi Xcelorin needed to have the throttle seversed on my KO radio before it would calibrate. Once reversed it calibrated fine.

Make sure your breake and throtle triming on your tx is a 100%