Motorcycle News - The supercharged Thruxton leading the Sultans of Sprint
The German workshop Mellow builds ‘machines to escape from madness’—and they have a particular affinity for drag bikes. Last year, they won the Sultans of Sprint series with their ‘Frankenstein’ Ducati. And this year, they’re back with an even more outrageous racer—a supercharged Triumph Thruxton R called ‘Phantom Blaze.’
Some of that history is obviously flooding through the veins of the chaps at Mellow, and news of their abilities has spread across the English Channel.
The regulations call for two cylinders and water-cooling, so Mellow started scanning Triumph’s Modern Classics catalog.
Triumph wanted to celebrate their ‘Spirit of 59’ campaign, which harks back to the launch of the Triumph Bonneville series. So Mellow decided to mix high tech supercharger engineering with an old school fairing.
The supercharger is a Rotrex C15-60, a compact model that supplies 0.6 bar (9-10 psi) of boost. Bigger injectors were also added to the engine to increase fuel flow, plus forged pistons to stop the internals imploding. An extra oil cooler keeps temperatures down.
A custom ECU ties all the mods together, and after a spot of fine-tuning on the dyno, the Thruxton was sending a solid 147 horsepower to the back wheel, up from 96 on the stock bike.
Grip is now supplied via a set of 17-inch Racetec Supermoto slicks from Metzeler, and there’s a reinforced clutch to soak up the punishment.
A Low Handlebar Kit was also lifted from the accessories catalog, and then the metalworking commenced. The new fairing is matched to a racy seat and tail unit, upholstered by Tailor Leathers—a moto specialist from southern Germany.
The next round is at the Biker Classics, held at Spa at the end of this month. If you’re lucky enough to be attending this amazing event, keep your ears open for the sound of a supercharger—and a blue machine streaking down the strip.
via Bike EXIF http://www.bikeexif.com
June 6, 2018 at 12:06PM