Originally Posted by MonkeyFist
Here is a good litmus test before trying things like this. Think of it this way. If a 2 speed trans made a brushless car run faster or better in any way at least ONE manufacture would have released a car with a two speed trans/brushless combo. How many cars are available set up like this? Zero. That to me says it's not all you think it will be, or just flat out woun't work at all.
I believe that's the same argument us nitro folks used to say about electric motors alltogether; that is until the first couple of company's started making electric RTR kits
Again, a 2 speed is not needed but can be done if the person has the know-how and the extra supplies. I personally wouldn't do it for a dirt/bashing setup unless there were some really long straights because you generally aren't doing lots of full speed sections. For on-road, I actually have come to perfer the two speed just cause my local track has several top speed sections. Initially, in order to increase my speed in these top speed sections I would simply increase pinion size. The problem is that during the other 80% of the track, I was creating a lot of heat. In order to increase my top end on the long straights, AS WELL as decrease energy expenditure during the other 80%, I simply switched to an extreme second gear with a smaller first gear. But then again, with today's ESC's, you can almost do the same thing by adjusting the throttle curves and so on.