Schwalbe nobby nic performance dd mtb tyretouring and all mountain riders love the schwalbe nobby nic performance dd mtb tyre no tyre is better suited for e mtbs particularly because this performance double defense version has reinforced sidewalls features bead folding compound dual casing double defence pressure 23 to 50psitechnologies performance lineschwalbe performance line tyres are excellent quality for intensive use they are the best value for money tyres in schwalbes range d