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

The trials engine has a shorter stroke and the piston does not reach the top of the bore,

thus lowering the compression raito.