Onza ibex fr mtb tyrean ibex is a fast smooth and safe animal in the mountains so is this tire thanks to the wide open profile it makes no compromises on rough gravel and in wet conditions no trail is too steep no section to narrow and no roots too slippery for this all round tire featuressize 26 x 225 catagory amfretrto 57 559casing frctpi 60bead steelwirerubber rc 55adurometer 55aweight 820g size 26 x 225 catagory amfretrto 57 559casing frc120tpi 120bead kevlarfol