The bike I'm planning to mod is the Gravity BaseCamp 29 DLX24 from bikesdirect. It has 29 inch wheels and a 21 inch frame. I've heard conflicting answers from people online about whether a 36 or 44 tooth sprocket (the only options that come with the kit) is gonna be better for my needs. The kit I'm planning on getting is a BT100. Its essentially gonna be purely for fun and fooling around, so I just want to go as fast as I can. I am 6'2 and 185 lbs. Which sprocket should I get if my only goal is fun? Also, what speeds would I be expecting?