Designed to work in hard terrain, the 504, 505, and 523 offers exceptional traction, braking, stability, and control.
Features:

• Featuring high carbon compound tread designs
• Maximizing tread wear and minimize tread knob tear/wear
• Offering great traction, braking and overall stability for enhanced control
• Reinforced knobs resist tearing and chucking while providing consistent grip
• 504/505 Mobber versions (87-4790 & 87-4791) are DOT Approved
• NHS (Not for Highway Service)