Designed to be fast and agile. The Happy Medium"s knob heights and profiles allow for a seamless transition from the tire center to the edge knobs.A universal design that is applicable to all types of riding and racing; fast rolling center with aggressive outside edge for cornering assuranceDownhill version veatures 2-ply constuction and Stick-E rubber; Cross-country versions feature light-weight single-ply casings and DTC rubberFront and Rear applicationSize:29x2.10TPI:120ETRTO:50-559 COMPOUND:DTCMAX PSI:80BEAD:FoldingWeight:670+-34