BUB Seven Streamliner

BUB Seven Streamliner is an American-built streamliner motorcycle that held the motorcycle land-speed record from 2006 to 2008 and again from 2009 to 2010.^[6] BUB Seven and two other streamliners traded the title of "world's fastest motorcycle" during official speed runs at Bonneville Speedway in the summer of 2006.^[7][8] The other two competitors were Ack Attack and the EZ-Hook streamliner.^[9] In 2017, Valerie Thompson rode BUB Seven for more record attempts at Bonneville.^[10]

BUB Seven

Manufacturer	Denis Manning/BUB Enterprises
Also called	Lucky 7
Class	Streamliner
Engine	2,997 cc 16-valve turbocharged V-4
Bore / stroke	4.125 in x 3 in
Compression ratio	9.5 : 1
Top speed	367.382 mph (591.244 km/h)[1]
Power	500 brake horsepower (370 kW) @ 8500 RPM[2]
Torque	400 pound force-feet (540 N⋅m) @ 8500 RPM[2]
Transmission	Four speed, dry clutch[2] Water-cooled chain drive[3]
Frame type	Carbon fiber/kevlar/aluminum honeycomb composite monocoque[4][5]
Dimensions	L: 21 ft (6.4 m)[4] W: 22 in (0.56 m)[4] H: 32 in (0.81 m)[4]
Weight	1,600 lb (730 kg)[4] (dry)

Design

Design for the streamliner is attributed to Motorcycle Hall of Fame inductee Denis Manning,^[11] who is also the owner, although it was listed for sale in 2010.^[12][13] Additional design work for the purpose-built V-4 engine was provided by Joe Harralson of Sierra Design Engineering.^[5] According to Harralson, the only off the shelf component in the engine is the oil filter.^[14] Manning has stated that the aerodynamic shape was inspired by the Coho salmon, who he observed swimming 50 miles per hour (80 km/h) in the Columbia River.^[3][15]

Manning had previously built Cal Rayborn's 1970 world speed record motorcycle, using a similar streamlined fairing built from a surplus jet drop tank.^[15][16]

Specifications

• Weight: 1,600 lb (730 kg)^[4]
• Length : 21 ft (6.4 m)^[4]
• Height: 32 in (0.81 m)^[4]
• Width: 22 in (0.56 m)^[4]
• Coefficient of drag: 0.08^[4] or 0.09^[17]