Bridgestone Battlecross X20 Rear Motorcycle Tire 120/80-19 63M

The Bridgestone Battlecross X20 Rear Motorcycle Tire 120/80-19 63M is a bias-construction rear motocross tire built in Japan for soft-terrain riding, from muddy tracks and slippery sand to a broader range of ground conditions. Bridgestone developed it alongside professional riders in top-level motocross competition, carrying forward the reputation of the X30 and X40 while targeting soft terrain specifically. It introduces Castle Block technology and a redesigned block pattern with greater stiffness and edge structure, aimed at improving traction and cornering grip for everyone from championship competitors to young beginners.

The size code 120/80-19 tells you the tire has a 120 mm section width, an aspect ratio of 80 percent of that width, and fits a 19-inch rim. That rim diameter must match your wheel exactly, and the full size code should match the code printed on the sidewall of the tire you are replacing. This tire carries a load index of 63 and a speed rating of M, which covers speeds up to 81 mph (130 km/h). Your machine's specification determines whether this load index and speed rating are correct for your use.

Specifications