Thursday, September 27, 2012

1950 Triumph Thunderbird - The First 650cc (40 cu. in. ) Vertical Twin

Triumph Firsts: 1913 - 1st motorcycle to successfully use a counter shaft transmission; 1937 - 1st Vertical Twin; 1937 - 1st to use high duty aluminum alloy connecting rods; 1946 - 1st and only motorcycle to have a spring hub. 1950 Triumph Thunderbird - The First 650cc (40 cu. in. ) Vertical Twin Ad available at www.DadsVintageAds.com CLICK THE PICTURE TO "BUY IT NOW"

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