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@umop3pisdn
Super duper boring post here...
Did some tyre width measurements.
Veloflex Record 20c (old logo) measures 21mm on my Hed 3 and 20mm on a Shamal (rim is a couple of mm thinner though).
Conti Supersonic 20c also measures 21mm on the Hed 3 and 20mm on the Shamal.
Vittoria Open Corsa Evo CX 20c measures 21mm on the Shamal, presumably 22mmish on the Hed but not gonna measure is.
So, as the Veloflex and Supersonic are the same measured width on the rim, which is faster? AC's research found the Veloflex Record slower than a Conti 20mm tyre, but his VF record measured 21mm.