Forged piston with undercrown machining to reduce weight.

Piston dome has been designed to maintain compression ratio with reduced dome height, improving combustion quality.

No requirement to twin plug.

Compression ratio expected to be 10.5:1 – 11:1

Piston rings are designed to suit most plated bore types and traditional iron bores.

These are also suitable for the Trials engines

BSA B44 PES 80mm Piston Assembly Forged TE21

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