Zipp Tangente Course PRB 700C X 28 Road Tire

Conventional wisdom on bicycle tires was that smaller was better.. The smaller tires were meant to be lighter, more aerodynamic and have lower rolling resistance.. Then came science. Research has shown that a larger tyre can reduce rolling resistance, making you faster than a traditional 23c racing tyre.. And of course, the larger tire provides improved grip in dry and wet conditions.. In some cases, when using the right rim, a larger tire can also improve aerodynamics.. Let's not forget that comfort also gets a big improvement. The Zipp Tangente Course R28 and R30 tires give riders a high-performance clincher in a width that's suitable for less-than-ideal conditions - rough roads, wet roads. The coming disc brake revolution will mean you can run tyres significantly larger than the 25mm limit on many bikes. The Tangente Course R28 and R30 are tires that take advantage of disc brakes to increase tire width and multiply it with faster rolling, better grip and improved aerodynamics. Peculiarities: - Nylon puncture protection layer under the tread - High performance sports and training tyre - New tread pattern with sipes for water drainage - Comfort in difficult conditions Specifications: - Width 28 mm (R28) and 30 mm (R30) - Nylon frame 120tpi - 260 grams (R28), 306 grams (R30) - Rolling resistance 33.15 W at 40 km/h (with Zipp butyl chamber) - Rubber with a hardness of 70 ShA (Shore A) 28mm PSI BAR Minimum 70 4.8 Max 100 6.9