Allen Millyard is a motorcycle mad scientist and has built some amazing creations in the past, mostly using hand tools and his trusty hacksaw. One of his most iconic machines is his Viper V10-powered motorcycle which he built in his shed in 2009.
In a video posted to his YouTube Channel, Allen does some routine maintenance on the bike in preparation for its yearly MOT inspection. After sitting for a whole year, the bike receives minimal TLC before Allen fills it up with super-unleaded gasoline and rides it to the garage.
Unsurprisingly, the completely hand-made motorcycle receives a pass on its MOT and is ready for another season of riding. While most custom bikes of this caliber are built just for show, Allen’s bikes are built to ride, as shown by the 9,150 miles that he’s amassed on the odometer.
From the video, we can get a sense of what a beast the V10-powered motorcycle must be like to ride. The engine barely turns over 1,500 rpm in regular traffic, and the sheer size of the machine would be daunting for any novice rider.
Read More: This Guy Is Building A Dodge Viper-Powered Mid-Engined Supercar
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The 8.0-liter V10 engine is sourced from a 1995 Dodge Viper GTS and produces around 500 horsepower. The engine itself weighs 340 kg (750 pounds) and makes up most of the weight of the 630kg (1389 pound) motorcycle.
Because the V10 is so large, a conventional frame wasn’t possible. Instead, Allen created two custom subframes that bolted to the front and rear of the engine. The design meant that there’s no room for a conventional transmission, but the V10 provides so much torque that there’s no need to change gear.
A selection of sprockets can be swapped onto the rear wheel to change the bike’s top speed from 160 mph all the way up to 270 mph (257 to 434 km/h). Allen has taken the bike to the Isle Of Man TT course, and completed top speed runs at Bruntingthorpe proving ground where it broke 200 miles per hour (322 km/h) at the hands of motorcycle journalist Bruce Dunn.
For a bit of extra fun, Allen programmed a secondary ECU map that adds extra fuel to the engine on the overrun, producing loud backfiring out the exhaust. As if it didn’t grab enough attention already…
In addition to his latest video, Allen has also cataloged the build of the Viper bike on his YouTube channel, as well as several other of his wild creations.
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