The R-14D is the ideal intermediate between a beginner bike and a top tier performance racer. The DP-780 racing frame has the 14 speed integrated shifters to allow more of a racing vibe. It climbs with ease and provides stability through less than ideal roads. The use of the innovative DP-780 tubing allows for more strength and durability. This great performance bike will last you for years to come. This is a 55cm bike.