Fastest speed on a tandem motorcycle

Fastest speed on a tandem motorcycle
Who
Erin Hunter and Andy Sills
What
291.98 kilometre(s) per hour
Where
United States (Bonneville Salt Flats)
When

The fastest speed achieved by a motorcycle carrying a rider and pillion is 291.98 kmh (181.426 mph) and was achieved by Erin Hunter and Andy Sills (both USA), riding a BMW S1000RR, at Bonneville Salt Flats, Utah, USA, on 20 September 2011.