The Next Generation of Ultimate Off-Road Performance. Designed to offer performance in a wide variety of terrains, the Geomax MX53 excels in hard-packed track conditions while also offering greater versatility in intermediate riding conditions. Block-In-A-Block - Offers more progressive cornering action and additional slide control. Intermediate - Works in a mix of packed and loose soil. Hard - Works in hard packed conditions. Off-Road - Provide grip and handling for off-road performance. The altered Block-In-A-Block shape on the rear tire allows for added flex in the knob to enhance grip while providing stability and slide control. Front and rear tires include tie bars between select knobs to reduce flex at the base of the knobs, improving durability.