When it comes to the phrase “you get what you pay for” it holds very true when it comes to bikes tires. We have probably all used cheap tires only to encounter flats or a ride that is not comfortable all. The Continental Grand Prix 4000 S is a great all around tire and used by many triathletes as their go to tires for training and race day. The new Black Chili Compound used in these tires allows for rolling resistance to be reduced by 26%, grip increased by 30% and mileage is increased by 5%.