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Piston pack for Bonneville from Norman Hyde

Following the successful introduction of his replacement pistons for Triumph T150/160 Trident engines, Norman Hyde has commissioned a production run of pistons to fit T120 and T140 model Bonnevilles.

Hyde, who was a development engineer working on both 650cc and 750cc twins at the Triumph factory in Meriden, had the new pistons made to the original drawings, but using modern materials with more precise tolerances for both pistons & rings.

Available in 71mm diameter, for the 650cc T120 Bonneville and TR6 Trophy, and 76mm to fit 750cc T140 and TR7 machines, the pistons are designed for motorcycles running standard compression (9:1 for the 650cc and 8.6:1 for the 750cc models).

For customers whose bikes have been re-bored, Hyde offers +.020" and +.040" sizes.

Each kit contains two pistons, with rings, pins & circlips.  Call 01926 832345 for more information.

This post was posted in Meriden Products and was tagged with norman hyde, triumph motorcycles, boneville t120, bonneville t140