Brushless CRT Questions

[Sower]

Ok guys, I just got my CRT rolling chassis in the mail yesterday so it's go time. But before I start ordering some things I have a couple other questions that I need your help with.

Here's an update . . . I've decided that I'll go with the Neu 1515 instead of the Lehner now - given the latest info on the MM software updates due out very soon to handle the cogging. I will be running two 2s 4900 Trakpowers together for a 4s 4900. Here's my question: which KV Neu 1515 should I get, and what pinion should I put on it with the CRT stock gearing?

As you might remember from the begining, I would like to hit a top speed of 45 mph and run very cool. It gets in the high 90's and low 100's in the summer here.

Thanks guys!!!