1956 tribsa 500 special superb
1958 tribsa 750 pre unit scrambler
the engine is a pre unit triumph t110 with 750 barrels. the crankshaft is a later triumph type with billet conrods fitted to cope with extra power. the cylinder head has been converted to run on unleaded fuel. this bike also has an electronic ignition which is a pvl system generated off the crankshaft. the clutch is a yamaha rd350 so no more clutch slipping. the front forks are norton held with slap alloy yokes. the rear shocks are specially adapted ohlins. wheels are matchless on front and bsa crinkle on rear with an alloy hub that is half the weight of its steel brother. frame is a replica a10 made from stronger gauge material and also benefiting from oil in the frame. fuel tank is a standard bsa victor scrambles tank. mudguards are alloy and tyres are both brand new michelins.
1960 tribsa 500 twin
1971 tribsa 500
B25 engine, B50MX tank, cerini forks and hub.
Image kindly provided by Andy Westlake.