Tire - Battlecross E50 - Rear - 140/80-18 - 70P Improved off-road traction due to front and rear tread pattern, Castle Block* technology, increased block rigidity, and the additional biting edges of Bridgestone's bunker technology, The E50 is easier to mount at the track or on the trail because we optimized the sidewall rigidity and the profile to improve rim fitting, The E50 is optimized for a broad spectrum of off-road riding, Specifically designed for the hardcore Enduro rider, P-rated for speeds up to 93 mph