Onza ibex 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 275 x 24 catagory enddhetrto 61 584casing frc120tpi 120bead kevlarfoldablerubber rc2durometer 65a55aweight 850gsize 29 x 24 catagory amendetrto 61 622casing frc120tpi 120bead ke