I started riding when I was 7. My Dad bought me and my brother a 1970 Honda QA 50 2 speed no clutch. I spent the first summer winding the crap out of 1st gear LOL. Towards the end of the summer a miracle happened I shifted into 2nd gear and wow a whole new world opened up. Now I was able to go faster than my fear but the excitement was overwhelming I'm 41 as I write this and still get that overwhelming excitement from going faster than my fear. I guess that's what's call adrenaline.