Panaracer gravel king mtb bike tyrefor cyclists who are looking to expand their cycling horizons to roads that may not be suited for normal road tyres panaracers gravel king tyre is the answer it comes in a variety of widths to suit any riders tastes it is a rugged and versatile tyre for gravel dirt or smooth pavement it is constructed from a natural rubber compound and incorporates a puncture protection breaker and a special low rolling resistance casing to make the gravel king a go anyw