Huge tires necessitate huge tubes, so Surly presents the Toob. Its available in 1mm or 1.3mm wall thickness and is made to fit 3- to 4-inch tires. Its equipped with a removable valve core in case you want to fill it with sealant.
Main Street Bicycles
39 East Main StreetCarpentersville, IL 60110 847-783-0362
Map & Location Info