Why are road bike tires so thin?



  1. 0 Votes

    Road bike tires are optimized for high speeds on smooth surfaces. A thin tire inflated to a pressure of 100-120 psi results in less contact with the road, which also means less friction. More of the rider’s energy is therefore transferred into the forward motion of the bike. Wider tires, as in mountain bikes, require more energy to overcome friction with the road.

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