Yeah, I had a 1/10 scale and wanted taller tires for more ground clearence. I was running thru some grass and it made the car run hot and shut down. On that I used HPI 2.2 tires. I had to make the front tires narrow as it was 2 wheel dr. Now I just put a .15 engine on it and new shocks. The car is like 10 years old but still is fun to run. Now I have a Kyosho mp7.5 sport 4, it has a .21 engine. I just got it, used. I want more clearence on it. I like ur tires they are ok. I wanted badlands in series 30, but can't find rims for them. U get the bigger tires and usually they(the 40 series) are way to big. I agree with the idea of using the HPI cuz of the setback. However u could use hub extentions. I use 30mm ones from ofna. Also gives me a wider stance. I got some tires from an exceede madwarrior. I like the tallness, but they are a little fat. I have also never messed with the gearing, but have always wondered if I should. I do have some pic on my profile of my two cars. The 1/8 scale does not have the bigger tires on it. I am going to put them on and take some pic of it and post them. Oh, I have also added heaver oil(60wt) and heaver springs than standard. White and Blue ones.