wow thats pretty rigid. I dont know if I honestly (no offense) could deal with that. My dad listens to me alot, and everything works out great. Anywho about the bike, Its really hard to explain the concept of gears. Like people are like wow 27 gears I dont need that, but really if you think about it you dont use all of them. But I mean I shouldnt get into it because its a whole thing.