Anyone who has been on a kilowatt-hour or Critical Mass bike ride in Vancouver over the past 8 months has probably heard and appreciated the fine high fidelity music and thumping bass coming from amongst the crowd. That's been the productive output of Bruce Lau, who built a performance 100 watt amp to run off his ebike battery pack. Now you too can turn heads and make people on the streets smile with an ebike sound system that rivals that of pimped cars. Bruce has made a few extras and we have them listed on our store site. They are hand-made in Vancouver, and ready to spread joy all over the world.