Maxxis Rekon Race Tire - 29 x 2.4, Tubeless, Folding, Black, MaxxSpeed, EXO, Wide Trail, E-25This 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. Semi slick XC race tire Item Specifications Color Black Defined Color Black Designed for ebike Yes Flat Protection Sidewall ISO Diameter 622 Road 29" ISO Width (mm) 61 Labeled Size 29 x 2. 40 PSI 50 Tire Bead Folding Tire