Interesting though as this site lists the Marathon Greenguard 700x38 , 40-622, as being 40mm measured width. http://www.bicyclerollingresistance.com/specials/schwalbe-marathon-32-37-40-47 http://www.bicyclerollingresistance.com/tour-reviews
Interestingly despite being heavy they offer very good rolling resistance . I look at the lower pressures where @30 or 45psi they are almost the same as Vittoria Hypers ! -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
