Well,

Mass produced what exactly do you mean by mass produced? You mean those mass Produced tuned 300 motors? Because you and I both know that those motors are not exactly "mass produced."

The 280 motor that I use is mass produced as is the 300. Like Grafix and others, I then modify these motors so they may yield their best results.

I could perform a custom job on a 300 motor just as I have the 280 but it simply will not last.

My comment regarding the 1/10 drivers was obviously pertaining to closed endbell 540 motors.

As far as replacing the brushes, this is a simple task. Purchase the brushes for $2.99 and solder the shunt on to the post. No more maintenance is necessary unless you always want to keep your motor in tip top shape.

One set of brushes will last as long or longer than a tuned 300. So really the maintenance does not even come close to the cost of replacing these motors after every 15-20 battery packs.

The 280 motors such as the ACRO 280BB and other relabeled editions of this motor are simply put a better platform and a higher caliber motor. Both my short can and long can 280 motors are now my motors of choice for 1/18 scale racing.

For the serious racer, there is no comparison. The avid basher however will be extremely impressed with the speed and will definitely blow their friends away .