Athena big bore compression ratio?

What is the C/R of the 98mm big bore it? Is it 12.5 or 13.5?

Anybody?

What is the C/R of the 98mm big bore it? Is it 12.5 or 13.5?

The standard kit is 12.5 there are other pistons that can be used with a higher comp ratio however!

thanx.been out of counrty

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