The first in the uk to have the long awaited challenge limus the new specific mud tyre there is no tyre to compete and this tyre will be perfect for uk races deeper 33mm knobs for increased traction in deep mud speed and max traction all in onedetails use cyclocross size 622700 width 33 weight 340 gr tpi 260 bead aramid carcass super poly bar 2 6 psi 28 87challenge open tubular hand made open tubular differ from traditional clinchers for the construction the tyre is produc