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Old 06-24-20, 09:52 PM
Lapped 3x
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Someone had also run a Crr test for various tubular set ups that included different glues. For the fastest wheel, it was found to be a 19mm tubular glued up with shellac. Shellac was a fair bit better than Minnesota Mining and Manufacturing's Fast Tack, and even more so than Mastic type glues. In my opinion, this most likely had to do with the fact that Mastic glues allow the tire to "squirm" a bit on the rim, deforming not just on the sidewall, but across the whole carcass's cross section at the contact patch. 3M Fast Tack is more rigid (because you need less of it, so not as thick), and Shellac won't move at all where it's adhered.
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