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The T140W TSS was the last motorcycle model made by Triumph Engineering at their Meriden factory. == Development history == Designed to appeal to the US market, the TSS had an eight valve Weslake Engineering cylinder head developed by Triumph's Brian Jones from a 1978/9 design originally commissioned from Nourish Racing of Rutland〔''A Final Bid To Triumph'' Classic Bike (April 2012(〕 following 1960s designs for the 650cc twins by the Rickman Brothers. The crank was a fully machined single forging with increased big end diameter making it much stiffer and better-balanced and producing one of the smoothest running motorcycles in the Triumph range.〔''A Final Bid To Triumph'' Classic Bike (April 2012)〕 The head had smaller valves set at a steeper angle (30°). Recesses in the pistons allowed a 10:1 compression ratio. UK models had a pair of 34 mm Amal MkII carburetors while the export models had Bing constant velocity carburetors. Other changes from the standard T140E included offset connecting rods, steel-linered alloy barrels,〔''A Final Bid To Triumph'' Classic Bike (April 2012)〕 a strengthened swinging arm, and a high output three-phase alternator. A modified TSS raced by Jon Minonno for Texan Jack Wilson's Big D Triumph dealership achieved outstanding results in the Battle Of The Twins races for 1981–1982.〔''The Empire Strikes Back''(Bike 8/82)〕 According to the Triumph build books, held by the Vintage Motor Cycle Club, the first TSS was built on 27 October 1981 for the North American market. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Triumph T140W TSS」の詳細全文を読む スポンサード リンク
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