neptronix: What controller are you using?
Im using a kelly and didnt get the high speed option on it, myself and kelly girl are both pretty sure thats the problem. Its a bit confusing, when i ordered the controller the kelly says "supports up to 40000eRPM. I didnt see the E, and thought it meant RPM. Im not sure of the formula to convert, but Fany at Kelly says thats the problem. So ill ship that one back for them to modify. Then this motor will go on one of our other ev's we build.
As for the bike, ah, after reading several threads (yours included) i realized im not going to have the performance i expect without going big. So I ordered the Golden motor 5000 watt brushless. I was torn between that and the brushed/brushless etek's, but what it came down to is size, as the golden is just a tiny bit smaller and will fit in my frame design better. From the videos ive seen looks like the golden makes a TON of power, should work well. Went with the air cooled unit as I cant see overheating this monster on my 100lb bike. Makes me wonder though, does the water cooled unit have a impeller built into the motor to pump the water or do you need an external pump?
--John