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and 34 Watts faster than the nearest competitor
Arch support keeps the socks in place
Shift instantly and confidently whether sprinting
Not just because it’s our most aero
The X-SYNC™2 chainring provides significantly quieter performance
Grand Prix 4-Season Tire brake and 34 Watts faster thanThe Grand Prix 4 Season is a reliable companion for training rides and in competition, come rain or shine, featuring superior durability that's ready for any season. Vectran Breaker is spun from liquid crystal polymer to create a multiple thread thermoplastic yarn. This partially crystalline fabric is more cut resistant than aramid and its tensile strength is five times higher than that of steel. A Vectran Breaker is lighter, more flexible and
