3/10/2023 0 Comments Reddit diablo 4![]() The model has remained a top seller for the British motorcycle manufacturer for six years and counting, with discreet upgrades along the way to keep it up at the tip of the modern classic spear. In reviews when it was first released the Triumph Thruxton R seemed to impress everyone, even the hard-nosed superbike types who usually scoff at any motorcycle with fewer than four cylinders or 125 bhp. Unlike the earlier carburetor-fed engines this one has modern multipoint sequential electronic fuel injection and it produces 96 bhp at 6,750 rpm with a hefty 82.6 ft lbs of torque at 4,950 rpm. If you look under the radiator here you’ll see the discreet air-to-air intercooler that helps lower intake charge temperatures back down to more reasonable levels. The displacement is 1200cc with a bore and stroke of 3.84″ x 3.15″ and a compression ratio of 11.0:1. The Thruxton R was fitted with a liquid-cooled single overhead cam parallel twin with a punchy 270º crank angle and four-valves per cylinder. Triumph throughout their history are most famous for their parallel twins, it was Triumph’s Edward Turner who launched the Triumph Speed Twin in 1937 and popularized the engine configuration after all. With the chassis, suspension, and brakes all sounding top shelf the only thing left to talk about is the engine. Twin Brembo monobloc brakes were installed along with a single disc in the rear, and the factory fitted tire was the sticky Pirelli Diablo Rosso Corsa. ![]() ![]() Gold anodized Showa “Big Piston” upside down forks were fitted up front, paired with twin fully adjustable Öhlins shock absorbers in the rear. They developed a stiff new tubular steel duplex cradle frame that uses the engine as a stressed member for improved rigidity. When the engineers at Triumph set out to develop the Thruxton R they essentially started with a blank slate. Here the Rotrex supercharger can be seen bolted on to the timing side of the parallel twin, it sends the intake charge through an intercooler and then into the engine. When the all-new Triumph Thruxton R was released in 2016 it significantly raised the bar in the world of modern classic motorcycles, it won the Motorcycle News (MCN) “Best Retro” award in 2016 and then again every year since. ![]() Sometime later the motorcycle you see here, the only one in private ownership, was taken to Triumph in Portsmouth where it was given an engine oil and filter change, an inspection, new forged pistons, and an engine tuning device that increased the power output to 162 hp at the rear wheel – 51% more than the stock bike.The display of these three bikes at Glemseck 101 proved wildly popular, after the event two of the bikes were taken back to Triumph headquarters to be put on permanent display and the other was sold into private hands.Each of the three special Thruxton Rs were fitted with a Rotrex supercharger, an intercooler, and a custom exhaust system which combined to increase power from 96 bhp to 139 rear wheel horsepower – a 36.5% power increase.In preparation for their display at Germany’s Glemseck 101 Motorcycle Festival, the Triumph factory in Leicestershire, England set about building three very special supercharged versions of their range-topping Triumph Thruxton R model.Fast Facts – A Supercharged Triumph Thruxton R This Triumph Thruxton R is one of just three that were fitted with a Rotrex supercharger by the factory – the other two remain in the possession of Triumph Motorcycles and are on display at their headquarters in England.Īside from the supercharger this Thruxton R also has an air-to-air intercooler, forged pistons, and Power Commander system – as a result it now makes 162 rear wheel horsepower, a significant increase over the 96 bhp of the original. ![]()
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