Dirt /trail bikes, somewhere between age 8-10. Grew up on the prairie near pavement, so not much to jump besides the roads. We would burn the knobs off the back tires doing brake stands on the pavement, then we would drag race the bikes down the long flat gravel roads spinning all the way thru 3rd gear. Made those little 80-175cc bikes feel like rockets when you are a kid 😂. From that point on my brothers and I were hooked on blasting the tires off anything and everything....