E thirteen trs mtb rimthe e thirteen trs mtb rim features a new wider outer rim with a 28mm inner to provide a better platform for your favourite trail and enduro tyres e thirteen have also adjusted the profile to be more dent resistant and stiffer than previous versions while still using a tubeless compatible bead featuresmaterial exa aluminium wlex extrusion technology internal rim width 28mm intended use enduro racingtrainingweight 445g 27 5 470g 29 buye thirteen wheels