I did not know that the 9 speed was just more gears in the middle, thanks for that info, 12-32 7 speed, thats what i have, i believe its a sram 730,If there is a way to change the range on the 7 speed i would do that instead. What would i have to look for? I would also like to change the front and rear derailler for sure. cant put stress on them while changing. thats pretty much my only beef with the bike. The rest is me getting in better shape so i can tackle uphill. I was really flying downhill with no problem at all really beating the bike up! the bike took it like a champ. How about weight? where should i start? Tires?