I'm right here JJ, the fucker will weigh a ton. I had a Sony Xplode 12 on my Mongoose BMX, along with a car battery, two amps, a Jensen 200rms and a Kenwood 50x4rms, a head unit, mids and highs. Thing was hideous, but at the time, at fifteen, that shit slammed. I don't recommend a bike, it's HIGH maintenance, having no charging system and all. The wires are a big hazard, and I was lucky to have never been caught in the rain. You WILL NOT get usable bass from your setup. It will be glorified midbass at that; open air (no room or cabin) on a low power ghetto system doesn't produce favorable results. It was a magnificent learning experience, how various things work and such though. If you're hardheaded like me, then make sure to do the following: Leave NO exposed wires. Do NOT ground to the frame, do direct runs. Use high efficiency, small footprint amps and very efficient speakers. The Soundigital 250.2 might interest you. it's about the size of your wallet and does 2x125@4ohm. Adding thirty pounds would surprise you as far as the effort require to haul it around. double or triple that and well, think about it. *note* Be respectful. My neighbors all think I am an asshole, I rode around banging Oxycotton and Hollywood Driveby for the little kids to hear, don't play things that will upset others, especially when it's early/late or lots of people are around. I understand showing off is fun, but be considerate of others. You ARE able to get a sound ticket on a bike, I got one