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Triumph T120 Bonneville / TR6 Trophy Big Bore Kit
Triumph T120 Bonneville / TR6 Trophy / 6T thunderbird Big Bore Kit (You might need to open the neck of the crankcases to fit to the pre unit)
Increases to 745cc (76mm)
Kit includes:
Big bore barrel, 8.9:1 cast. With rings, guedgeon pins, circlips and copper head gasket.
With tappet oil feed as per original barrels
Made in England,