The world’s loudest bicycle horn - Guinness World Records 2015

Take a peek into our Guinness World Records 2015 book: Subscribe for more: Brace yourself as we come up close to the world’s loudest bicycle horn. Built using a modified freight train horn and powered by a scuba diving tank, as Yannick Read demonstrates, the ‘Hornster’, is able to produce a sound pressure level of 136.2 db(A)! Welcome to the official Guinness World Records YouTube channel! If you’re looking for v