Turbospoke not only makes a bicycle look like a real motorbike but it also converts plain old pedal power into realistic engine noises using durable plastic motocards and a realistic megaphone exhaust pipe the bicycle exhaust system totally revolutionises the quotcard in the spokesquot concept the bicycle exhaust system can now be fitted to either side of the bike making a greater range of sounds cooler and stronger big bore exhaust pipe and fits to 100 of bikes from 14rdquo 24rdquo i