Halo skin sidewall twin rail mtb tyreutilises 2 central rails ridges for reduced buzz on hard surfaces but features drive sleepers between the rails to give traction on loose surfaces halo patented also features overlapping low profile studs to avoid lateral flex during hard cornering and so provide positive steering multi use pressures allow this one tyre to perform in almost all conditions both on road and off road built in puncture protection system reduces flats featuresdirect