Interesting - they seem to be in the lower pressure camp. I posted this in another thread but maybe I should have posted it here:
Some of the information out there on tire pressures seems to be conflicting.
Here is Roval's recommendation (I run a Roval CLX 64 front wheel)
Here is HED's recommendation (I run a Jet Disc Plus on the rear)
My 23c GP5000 tire measure 26mm at 85 psi on my front wheel. Roval does not say if it's chart is for measured or labeled tire widths, but it would recommend >107psi if labeled, 89 if measured. HED's chart is for labeled width so they recommend 72 psi. Quite a huge difference! What is one to do? They cannot both be right.
On the rear, I've been running a 23C GPTT which actually measures 27.75mm on my HED Jet Disc Plus! I'm re-thinking that tire right now, given the 25mm brake track on that wheel, but the aerocoach testing puts it ahead of the GP5000 on their wheel - need to get the width of that wheel. At least in the back it's shrouded.
From Silca's website, I cannot find a chart with enough data to really select a pressure given tire width and rider weight, but there is this, which seems to suggest even higher pressures than roval, but we do not know rider weight: Here's a chart from Flo (They apparently got it from TomA) which I'm pretty certain refers to measured width and recommends about the same as roval, ~90.
My inclination is to go with the Flo(TomA)/Roval recommendations since they agree, and Tom does a solid job in this testing.
Is there a better source that I am missing?
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Ed O'Malley
www.VeloVetta.com Founder of VeloVetta Cycling Shoes
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