Yes. My only mtb right now is a rigid miyata, and I've just got huge tires on it. Well, as huge as will fit, like 2.5 up front and 2 or 2.3 in back. It's pretty great, actually.
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Lemond Zurich, Cinelli Hobootleg Geo, ICan gravel bike, Tifosi Rostra, Specialized vado turbo