29 inch bike rim uses mountainbike mtb cross country xc size 29 inches material aluminium weight 380 g size etrto 622 x 20 series dt swiss xr tyres clincher brake mount disc brake hub 32 maximales fahrergewicht 100 kg maximale speichenspannung 1 200 n empfohlene reifenbreite 28 62 mm rim joint welded ventillochgre 65 mm outer rim width 24 mm inner rim width 20 mm rim height 18 mm