[coolhandcountry]

With the proper gearing the 9xl probably can be run on a 7020. I ran a 7xl on a 7018. It did not last to long but I had the truck over geared as well. I think you be better off on a 9920. I figured it up on the emaxx scale some one had posted. I had my maxx geared for a top speed of 62 mph. It would run with traffic on a 55 mph highway. So yes the 7xl will push the truck to 50 mph. I want to try and push my 9xl some to see what I can get out of it. 20 cells and some gearing. I should be able to see 60 mph again. I really need to stop tire ballooning though.

At the flip at that speed. It is what killed my 7xl. I was blasting it down a field. The front tires looked like a boat across water(just skimming the ground). Air got under it and bam. That parts went to flying. I guy got it on video. I just can't seem to get it from him. I want it to.