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Tire size


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I have a 2018 Giant TCR Advanced 2 Disc with a Giant PR-2 disc wheelset. I currently have 700x25C tires fitted. Is it possible to put 700x28C tires on? It looks like there is enough space on the frame but can the wheels handle these tires? 

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you shouldn't have any issue going from 25 to 28, however if you want some reassurance measure the inside width of the rim - it should be 19/20mm or up. The older standards were around 14/15mm, and then the tyre tends to bulge out a bit. I've never seen that cause an issue, but it doesn't give you much or an aero profile. 

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It will be fine, 28mm wont fit as flush against the rim edge as the 25mm or 26mm tyres but this won’t slow you down or cause any issues as long as the tyres are inflated to an appropriate pressure to prevent snake bites

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