Sunlite Fatbike 26 x 4.0 Presta TubeThe Sunlite 26 x 4.0 Presta Tube is the perfect replacement tube for any fatbike. The slightly offset threaded presta valve will integrate directly into your extremely wide rims: with the thick rubber used you should have no issues with pinch flats. A removable valve core means that you can fill ‘er up with any sealant on the market to prevent future flats. * If you are so inclined, rigging up a tubeless set up is possible by slicing the tube and laying into the rim bed (you’ll just have to use a compressor, a lot of sealant, and a lot of luck).888571008430