Who loves 28c on their fast bikes?


I have enjoyed 25 c for a while. Would 28 c clear a giant tcr advanced frame ok? Worth doing or stick to 25 c ??

Gravity Aided

Legendary Member
Land of Lincoln
I use 28c on my fast bike, a Trek 600 sport/tourer. Pretty much as large a tire as it takes. I see little difference from 700x23, in terms of speed and handling. I'm a bit big for 700x23, and found 700x28 the smallest recommended for my size/weight. You may find the larger tire faster.


Über Member
I dont think a gp4000 would fit...the 25mm is tight enough...depends on the brand but then if the 25mm ones you are using are gp4000s...you are allmost at 28mm anyway
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