An update
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To beat a dead horse - it’s definitely a thing that tighter tracks will negate much of the advantage of a 125 tag over a 100cc tag (KA/VLR). (in addition to the already mentioned ‘local hot shoe’ video of X30 times that are the same as the fast KA’s around here, I’ve additionally seen video of a top 10 national driver with a Rok GP, on the same track, turning the same times)
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The laps from those drivers were under practice conditions and I’m going to give the benefit of the doubt that if it were race circumstances they could figure out how to eek out some more speed that would probably push the 125cc tags to ever so slightly better the times of the KA/VLR - namely by running it the same way folks run the KA’s around here (spinning them as high as they can go 17k)
In what I hope will be an actual positive thing to come out of this, I’ve realized that under these circumstance my rev-limited Rok GP is seriously handicapped, and so will attempt to convert it to a SuperRok, which can then spin to 17k (vs 15k).