Jumbo Jim TLR Fat Tire pro pump This allows the main air

This allows the main air spring ramp-up to be tuned to the rider weight

In varying widths from 23mm to 32mm it can be used on the way to work as well as training for road races or for sportives and audax

Fleece-lined removable inner bootie with 200g 3M Thinsulate insulation

The Rookie lever & brake is made from Cast 6061 alloy

Jumbo Jim TLR Fat Tire pro pump This allows the main airBigger is better. This is especially true if you want to cycle in deep snow or loose sand. In these conditions only large volume combined with extremely low air pressure can help. Schwalbes Jumbo Jim is an extremely light bike Fat Tire. Available in extra wide 4. 80 inches. 120 559 (26 x 4. 80) snakeSkin PaceStar Black Size: ETRTO 100 559 (26 x 4. 00 Inch) Type: Folding Compound: PaceStar Execution: LiteSkin Color: Black Weight: 990 g (35 oz)