Agree about the on/off switch. Most people bypass them. I just wanted to know anyone's experience with these motors at high speeds and if it's been been done before. So far only ran 17/46 and 20/46 on this setup.wanted to see what kind of speeds I can get with different gearing. I don't abuse my rigs. Anytime I've tried to do a speed run I let the motor cool before even thinking about running it again. Have some cut outs for airflow. Things are torque monster. I only really run on dirt in my backyard. I built a little track and a nice jump. Has been the most durable rc car I've ever owned. I launch this thing 6-7 feet in the air and have only broke a dog bone plastic piece on the bottom of the shock. For the life of me can't think of what it's called lol rear diff had to be rebuilt but was because it was DRY from previous owner. (I got it on trade as a roller) thanks for the info and any more input from anyone on this. Sorry I was a little off topic. Getting back into the hobby after quite awhile now. Any advice is appreciated. Thanks