Maxxis dh mtb tubeas downhill courses get gnarlier maxxis products evolve with the topography maxxis downhill tubes are 15mm thick to eliminate pinch flats add stability and allow the use of low air pressure the large 26x2 527 size fits the maxxis entire range of downhill tyres featuresweight 430g approx1 5mm thick to eliminate pinch flatsbuymavic wheels tyresfrom chain reaction cycles the worlds largest online bike store