Bigger is better. This is especially true if you want to ride in deep snow or loose sand. The Jumbo Jim is designed to to thrive in these conditions with it's large volume casing combined with extremely low air pressures.
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Product description
THE FAT BIKE TIRE. Extremely light. The large volume can be ridden with extremely low air pressure. Ideal on soft ground, rough and very loose terrain. Available in widths of 100, 110 or 120 millimetres.
Open tread with medium stud height for excellent rolling resistance and low weight.
