It took me a while to buy a rice rocket and now I'm kicking myself for having waited so long. Instead of being a big sail this machine cuts through the wind like a knife through butter. In the last 5 days I've ridden 620 fun filled miles and have to rate the experience as being as good as my wedding night. This is an amazing machine. The only downside is the lack of sound. Any pointers on replacement cans for more power and noise?