On 06/10/2014 06:52 PM, Anne Paulson wrote:
If you order some of Jan Heine's tires, be aware of a size discrepancy.
I just got a couple of his Grand Bois tires, which are sold as 700 x
32mm. I knew they were made by Panaracer, and I have used the
Panaracer Pasela 32mm and the Jack Brown 33mm tires, so I figured I
knew what to expect. When the tires arrived, they looked narrower than
I expected. Then, when I opened them up, they were labelled 700 x 30.
Then, when I mounted them on my Mavic Open Pro rims, they measured
30mm wide.
When I asked Jan, he explained that he has a different system of
measurement, and according to his measurement system (mounting them on
some rim or other) they measure 32mm.
So, expect the Grand Bois tires to be narrower than other tires sold
with the same width.
Curiously, on my bike the 700x30 Grand Bois Cypres is about 1.5% larger
than the new-style 700x32 Pasela. (The old-style raised-rib Pasela 32mm
is narrower than a Parigi-Roubaix 27mm on the same rim.)
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