Ah if its just a G cast in the side its probably just an S3 cylinder. I was getting excited that it could have been one of the ones we saw in 2012 pics that actually ran a completely different lhs powervalve cover (if any). My memory isn't 100%.
Simmo, when you get your 2013 250R you can always send your cyl down to Dave at TSP at the first top end. He's got specs and data from a couple different cylinders including mine (with the S3 on the side).
Hmm.. Externally casting is a bit different too. Maybe they're not S3.
