Part endurance racer part rowdy trail bikemdashthe juliana joplin cc x01 29er womens mountain bike 2017 is ridiculously fun the original model redefined what people thought a 29er could be this latest version breaks the mold all over again conventional wisdom always held that a big wheel bike like this was good for one thingmdashcovering lots of ground quickly yes the joplin is a fine cross countryendurance machine with its light yet stiff carbon frame efficient vpp rear suspension