the side pipe of this bike. man, why can't all bikes with side pipes this compact? the new r1's side pipe is huge!
laws requiring street legal motorcycles to have catalytic converters and maximum noise output. Seeing a bike that is a concept or custom modified bike with nice small pipes is great, but you cant buy that from the manufacturer as a street legal machine...So you get it with a big fat ugly pipe, and you toss it in the garbage after and put on whatever illegal exhaust you like