On my second "un-officially" announced Tonka Summit I'm trying to get as much performance out of the rig based on using the stock power system (motor and ESC). I find I'm running on footpaths and open flats where crawling and slow moving are rare, and more often it's high speed and quick turns I need to be ready for.
So I'm testing with different gear ratios between the pinion and drive gears, and also different tires. Here is the truck after it's first tests with these new smaller tires. While it doesn't look as tough, the turning ability is shocking, going from soggy and dumpy to sharp and tight... almost too tight since now at full speed if I throw the sticks on asphalt it grips so tight the opposite back tire raises up and wants to roll the truck! It is also a fair amount lighter suggesting the truck won't have to work as hard to do what it needs saving battery life. Seems I could loosen up the compression on the springs for these tires.
My goal with this truck would be to also get back to the RC short course and be a bit more of a challenge this time around.