Percy Tait’s Triumph 500 GP Racer

Local Hero

By Alan Cathcart
Published on February 13, 2018
article image
by Kyoichi Nakamura
Percy Tait’s 1969 Triumph 500 GP.

1969 Triumph 500 GP

Engine: 499cc air-cooled OHV parallel twin, 69mm x 65.5mm bore and stroke, 11.5:1 [10.3:1], 52hp @ 8,700rpm (at gearbox)
Top speed: 139mph at MIRA speed oval
Carburetion: Two 1-3/16in (30mm) Amal TT w/single central remote float
Transmission: 4-speed, chain final drive
Electrics: Lucas energy transfer with remote contact breaker assembly

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