Fastest speed on a quad bike (ATV)

According to Official Guinness Records,

The highest speed on a quad bike (ATV) is 315.74 km/h (196.19 mph) achieved by Terry Wilmeth (USA) onboard his ALSR Rocket Raptor version 6.0, a modified Yamaha 700 Raptor at the Madras Airport, Madras, Oregon, USA, on 15 June 2008.The ATV was augumented with a hybrid rocket thruster. The speed is the average of 2 runs in opposite directions.

For a complete list of 2008 records, please visit 2008 Guinness Records in United States.

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