I'd check what clearances you have on the Serotta before buying CX tyres, which are generally between 32 and 34 mm wide.
How offroad are you going, i.e. gravel paths, singletrack, rock strewn paths with big dropoffs?
@andyp started
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I'd check what clearances you have on the Serotta before buying CX tyres, which are generally between 32 and 34 mm wide.
How offroad are you going, i.e. gravel paths, singletrack, rock strewn paths with big dropoffs?