For Sale 2006 Triumph Rocket III Classic Garrett Turbo cycle trader Wisconsin $6000

The low compression ratio on these engines is perfect for some sort of forced induction, at least that was my first thought when I saw that it was around 8.5 to 1.
Has there ever been any explanation as to why Triumph decided on such a low ratio? It seems to me that they left a lot of power on the table by not going to 10 or 11 to 1.
 
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