PolyX Breaker Technology With their PolyX Breaker, Continental bring PKW know-how to the bike tyre arena – Polyester has been used successfully for years in car tyres and been tried and tested many times. The extremely resistant polyester fibre is woven tightly crosswire making a very high fabric density which not only makes the Breaker more resistant to foreign objects, but is also resistant to punctures. The rolling resistance is not effected either by the PolyX Breaker. BlackChili Compound Continental refine newly developed synthetic rubbers with natural rubber with the proven high-performance tread compound. They use these rubbers with special nanometric carbon soot particles, which are optimized in shape and surface properties for best uses for the intended tyre. BlackChili Compound reaches an unprecedented of performance. Tyres with BlackChili Compound reach an unprecedented level of performance. Compared to the previous best Activated Silica Compound, BlackChili tyres have 26% less rolling resistance, a 30 % higher friction value (grip) and a 5 % increase in mileage. 650c Wheel Sizing Be aware that when purchasing a 650c inner tube, tyre, or wheel from the Wiggle site that what you are buying is smaller than a more conventional road 700c inner tube, tyre, or wheel. Most road bikes nowadays come fitted, as standard, with 700c wheels (including inner tubes and tyres) and not 650c. A 650c inner tube or tyre WILL NOT fit a 700c wheel. Please read the 650c Wheel Sizing guide explaining the difference between 650c and 700c wheels. Based on ETRTO (European Tyre and Rim Technical Organisation) dimensions, 650c wheels are smaller than 700c wheels by about eight percent. Please, when on this page make sure you are buying the correct tyre size for you wheel. Check the sizing on your tyre before purchasing from this page. Tyre sizes tend to be printed on the sidewalls so please check before making a purchase….
– Continental Grand Prix Road 650C Tyre Road Race Tyres – £29.95 (RRP – £)
