Lot 027: 1963 TRIUMPH THRUXTON EVOCATION

Triumph were the dominant manufacturer in production racing throughout the sixties utilising tuned versions of their already potent Bonneville model to good affect. A "Thruxton" Bonneville had been marketed between 1964 and 1965 incorporating a large number of the optional performance parts as standard. In theory these parts were available to anyone wishing to uprate their machine to "Thruxton" specification; however, the availability was often disputed. Original "Thruxton" Bonneville's are now highly prized collectors items but the components required to convert a standard "Bonnie" to Thruxton specification are arguably more easily acquired today than they were in the sixties. The example offered started life as a 1963 Police specification 6T. It was rebuilt using 1968 specification forks with all new components and damping as used on the 1968 to 1971 works machines, a 1968 rear subframe and swinging arm and Falcon shock absorbers. 19" wheel rims are fitted, the rear being laced to a quickly detachable BSA Spitfire rear hub which enables a choice of sprockets. The tool box, which compliments the works type oil tank with cutaway, has been made oil tight with breathers and now performs the role of "catch tank". A works replica alloy seat and tank are fitted as is the correct style of Avon fairing with a detachable nose to accommodate the headlight. Original new matched speedometer and tachometer provide information for the rider. The engine was rebuilt by Andy Alexander and utilises a new drive side crankcase, new bearings throughout, stronger connecting rods, and 10:1 compression ratio pistons with modified skirts. The head has new valve guides with modern valve springs and has been "nicely flowed" whilst "R" type Thruxton camshafts with 3 inch radius followers look after the timing. The transmission features a close ratio four speed gearbox and an alloy clutch drum. It is attractively presented in the traditional blue and white livery and is described by the vendor as being in excellent condition throughout.