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Tyre height (frame clearance)

mpiempie Posts: 81
edited August 2015 in Road buying advice
Short question:
Does putting the same tyre on a wider rim increase the tyre height?

Longer question:
I'm currently running 25mm GP4000s (80/90psi) on aging RS10s and have only just enough clearance to the downtube on my SuperSix. Looking at new wide rimmed wheel as a replacement, but concerned that above tyres on wider rim may reduce clearance to an unacceptable degree.



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