The MotoSport.com Maxxis Tire Combo includes ONE Front and ONE Rear Maxxis tire with the following features: Maxxis Maxxcross SI: The Maxxcross SI is a go-to tire for GNCC and WORCS pros, and you will be equally impressed by its performance and longevity. Race-proven rubber compound delivers excellent traction in soft / intermediate conditions on the motocross track or off-road. Anti-flex knob bridges on side lugs offer solid straight-line stability and enhance grip for aggressive cornering. Developed in the Grand National Cross Country series. Perfect tire for any intermediate, loamy or muddy terrain. Maxxis Maxxcross IT: A staple in the Maxxcross lineup, the IT is known to be very long lasting: An excellent value for the hardcore pro motocrosser or the grizzled weekend warrior enduro rider.