Maxxis Rekon Race Tire - 29 x 2.25, Tubeless, Folding, Black/Dark Tan, Dual, EXOThis semi slick tire borrows its tread design from the trail version of the Rekon, but with smaller and shorter knobs. Use it as a rear tire paired with a more aggressive front tread, or front and rear for short track racing. Dual compound rubber offers low rolling resistance and increased cornering grip EXO casing provides protection on sidewalls for extreme cut and abrasion resistance while remaining lightweight and highly flexible Semi slick XC