Exhaust system VOCA Cross Rookie 50 / 70cc for Sherco 50 SM-R / SE-R models. With European CE e-aproval! VOCA Racing now offers this handwelded upper exhaust equipped with reinforced aluminum silencer and laser engraved logo. Exclusive racing look designed for the most demanding, to be combined with a 50cc or 70cc mid-range preparation. The VOCA Cross Rookie 50/70cc (CE) exhaust is available in two versions, with red or black muffler. Note – For the new Beta 50cc gearbikes there are very few exhausts available in the market. Without a doubt the Cross Rookie 50/70 is one of the best options. Red silencer.