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miro_o
I would like to join some CX races that I kept missing time for in the last few years, that is probably the main and only reason for staying fairly narrow.
Leaving the knobby questions for now, do you think for tarmac and maybe occasional gravel (considering having a second wheelset for harder terrain) I should go for 650Bx42-48 or 700x28-32c? My 700c rims are 20 mm inner width so won't go any narrower than 28c.