1950 Triumph Other

6T 290NA

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Superbly Restored! 1950 Triumph 650cc Thunderbird Frame Number: 290 NA Engine Number: 6T 290NA Triumph boss Edward Turner knew the value of a good headline. When demands for more power emanating from both American riders and British sidecarists grew too loud to ignore, he followed up the blockbuster 500cc Speed Twin with the 6T Thunderbird, announced in September of 1949. But a simple press release wouldn't do for Triumph's first 650. A spectacular launch stunt saw three Thunderbirds lap the banked concrete Montlhéry circuit in France at over 90mph for 500 miles, after which they each achieved a flying lap of 100-plus mph and were then ridden back the 400 miles to Coventry. Message delivered to customers and competition alike. Moto-journalist Frank Melling: "The Thunderbird is one the most pleasant, rideable and thoroughly charming classic bikes available," he wrote. "The engine spins into life with a single, easy kick and then the bike will do everything from potter around a bike rally at 5mph to genuine, reliable 70mph cruising on the Interstate." The first bikes were painted Thunder Blue, which was more appropriate for battleships than motorcycles. This was soon supplanted by the more pleasing Polychromatic Blue, a metallic color that became the Thunderbird's trademark hue. Manufactured in late 1950, the example offered here was subject to a comprehensive, though not ground up restoration. A matching numbers bike, the engine was overhauled with a fresh top end with new valves, guides, springs, pistons, and a honed barrel. The bottom end was deemed in good enough condition to not need a rebuild. A new Amal 376 carb was fitted along with a host of ancillary parts, including 6V battery, primary and drive train, complete wiring harness, solid state regulator (inside original Lucas box), new Devon English chrome rims with stainless spokes shod with new tires and all new rubber parts. This is an older restoration, which has held up well. Paint and brightwork remain in very good condition, as are all finishes and correct hardware. The bike was hand pinstriped in the correct color and style. Fresh from a service, the bike is great fun to ride. The bike starts easily, idles smoothly and rides as good as it looks. It shifts well through a good clutch. Brakes and suspension match the power and smoothness of the bike. Everything works as it should. Thunderbirds in this cosmetic and mechanical condition are becoming increasingly harder to find and this one will not disappoint.