Copertone rigido Continental Cross King - 29x2.20

Cross King 29´´ x 2.20 Rigid MTB Tyre.Size:29´´ / 2.20.Features:- CONTINENTAL tire ´´Cross King´´.- Wire, 180TPI, black.- Fast and with good grip, despite the unmistakable knobs, it rolls extremely smoothly and very quietly.- At the Research & Design department of Continental in Korbach, Germany is a permanent search for the solution to an old problem:- The rolling properties of the rubber of a bicycle tire are mainly determined by three different factors:grip, rolling resistance and service life.The dilemma:- Improving one characteristic often comes at the expense of another.- A tire with a lot of grip wears out faster and rolls slower.- But if the tire has to become faster, or has to last longer, this is at the expense of the grip.- A very good compromise has already been reached with the current, highly advanced silica gel-based technology.- However, the engineers were not yet satisfied.- They broke new ground and achieved a breakthrough in the composition of the mixture:- BlackChil