Routt Big Bore Kit – Triumph T120 Bonneville / TR6 Trophy / 6T Thunderbird

Routt Big Bore Kit for 650cc 9 Stud Models

Kit consists of Big Bore Barrel, 8.9:1 Cast pistons (Complete with rings, gudgeon pins, circlips) and a copper head gasket.
With tappet oil feed as per original barrels

Increases to 745cc (76mm)

Suitable for Triumph T120 Bonneville / TR6 Trophy 6T Thunderbird 1963-74 plus any other Pre Unit 650 when using a 9 stud head.
Please note, when fitting to Pre Unit models, you may need to open the neck of the crankcases slightly in order to fit.

Great for Tritons and Cafe Racers

Barrels Made in England