• TPI/PSI confusion there - TPI = threads per inch, it's a measure of how fine the woven casing material is. Higher TPI supposedly makes for a smoother ride and a lighter tyre.

    Ha, did'nt realise this was the misunderstanding.

    Just noticed the Veloflex corsa are stated to have 320 TPI. I thought they were 290.

    Worth noting that manufactures make there race tyres light and subtle in different ways. TPI is only one factor.

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