Reifen Hohlkammerprofil 25mm Graupner 96327 This new generation of tyres offers even greater consistency with temperature fluctuations, and builds up even greater grip. The new cross-sectional profile makes the tyres capable of tolerating even higher lateral forces. All tyres feature a moulded-in woven kevlar insert. The common feature of all the new tyres is their long life combined with maximum traction.