Added it to my Boosted Mini X got about a 5 mph increase in speed on all the ride modes love the purchases my mini monster truck.
Great for bumpy roads and cracks. I feel much safer riding on bad roads with these wheels and they turned my Exway Wave into a little tank.
I put them on my WowGo 3x and it completely fixed the issue with the bumpy roads and cracks. Completely worth the switch!