How fast is the fastest ATV in the world?

Answer 1

As of June 2009 In pure stock form, that is right off the showroom floor with NOTHING being added to it, with acceleration and top speed that beats out the best competition, the Polaris Outlaw 525 IRS is the fastest ATV on the market. As far as purpose built machines go : Built by Turbosmart's Puerto Rican Distributor - TurboTech - the "Spiderman" quad uses a turbocharged 1000cc Yamaha RX1 snow mobile engine. Utilising Garrett GT3071R turbo with Turbosmart Ultra-Gate, Race Port BOV, FPR-1200 fuel pressure regulator and an e-Boost2 boost controller, the "Spiderman" quad pumps out 450hp and flies past the 1/8 mile market in just 5.0 seconds! Current Guinness Record holder The highest speed on a quad bike (ATV) is 249.51 km/h (155.04 mph) achieved by Terry Wilmeth (USA) onboard the AlbaAction/Fullbore/Powroll Rocket Raptor version 5.0 at the Madras Airport, Madras, Oregon, USA on 16 June 2007.