[Dyna Ryda]

Last 107" I built has 10.5:1 static cr and runs really cool. The hottest the owner could get it was 210, and that's in traffic with 400+ pounds on the bike. He had me install an oil cooler, now I couldn't get over 190 degrees. The bike was street tuned by me with a t-max. A good dyno tune would be even better, but we don't have that option here.

Tutt is right, once you bore to 107, that's it. I wouldn't go any bigger.