MAXXIS IGNITOR 29" x 2.1 - The Ignitor tread pattern was designed for the most discerning professional racers and already has laid claim to multiple World Cup victories. The well-spaced tread pattern fills in nicely to provide low rolling resistance in the straights, while the ramped pentagonal knobs provide excellent traction in the corners and in medium soil. Tire Size Tyre Size 29 x 2.10. TPI 60. Bead: Foldable. Max PSI 65: Weight: 705g. Durometer: 70a