[funknuggets]

From what I see, if you hit something hard enough just about every bike can break, or bend. Ive seen aluminum fail catestrophically, Ive seen carbon bikes shatter, Ive bent steel bikes before... so its all a matter of what you think you are going to do. Bikes have to be pretty durable. If you are going to go jump off curbs and hit things, then honestly... I would look towards a traditional geometry, NON SUPERLIGHT, frame of the steel or titanium variety. Aluminum bikes are light, but likely have ridiculously thin tubing in order to save weight and material.... (have you ever SEEN the cross section of a cannondale frame?).

Wheels are what were said... typically the more spokes... 36, and with a little bit of a aero rim.. .the better... however ksyriums are freaking bulletproof. I know a guy that uses the same set of ksys to race crits and do cyclocross. So, that being said.... get a steel or ti bike with a good set of wheels and you wont hurt it. You stay upright and the bike will be fine.