Sport Rider Photos
In order to create more aural excitement for the MotoGP spectators, most of the racebikes now have open exhausts with no silencers, as exhibited by the tailpipe of the Yamaha YZR-M1. However, some riders, like Rossi, have opted for silencers, saying the loud exhausts make it difficult for them to concentrate.
Yamaha Yzr M1 Exhaust View