I am about to buy a bag for my Canon 500D, ef 100-400 zoom, 100mm macro, the 2 kit lenses, 430 EX flash and a 1.4 teleconverter. I've pretty much decided on a Lowepro 400AW (although maybe this is overkill?). I live in the bush and mostly do bird or macro photography and I'm wondering how this gear would go travelling on my bike on a mountain bike down the dirt roads of my neighbourhood (potholed, corrugated but not extreme off road conditions). Is this kind of gear up to the bounces? Does this type of pack provide enough protection? Should I just stay in my car for my local photo expeditions?
Any thoughts greatly appreciated.