This vid shows what you guys are talking about. (Skip toward the middle to see the higher speeds with the 3s 5K pack.)
Even with weight strapped to the front end, it would still lift off the ground at high speeds. It even flipped on its back around 60 mph.
snellemin is on the right track with the downforce idea. I kinda quit on it once I hit 68.7 in my pede. I bet if I figured it out, I could finally break 70.
On the rustler/pede you need to mount an RPM wide bumper upside down This creates good downforce on the front eliminating front lift.
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