Original kit :26 WTB rim with Continental SportContact, 6061T NVO stem and Ritchey Riser handle bar, Suntour NEX4500 Front suspension, SDG iBeam saddle, 24 Speed SRAM with Truvativ IsoFlow Crank set, Avid BB5 Disc Brakes, weighing in at 13.9kg.NOW:700C Rim with Schwalbe Front and Rear specific Stelvio, Carbon fiber Stem and Handlebar, Carbon fiber front fork, Velo leather saddle and 24 speed Shimano Alivio with Shimano 105 brakes. Weighing in at just 10kg!!!