The Colnago V4RS Ultegra Di2 – Size 55 Designed for WorldTour pros like Tadej PogaÄar, the Colnago V4RS monocoque carbon frame offers an unmatched stiffness-to-weight ratio with a frame weight of just 798 grams (unpainted, size 485). Aerodynamic tube shapes and internal cable routing minimize air resistance by up to 6% in a full aero setup, ideal for sprints and climbs. In size 55, it fits riders around 1.78 m perfectly with a stack of 593 mm and reach of 403 mm for stable, responsive handling. Advanced Components The Shimano Ultegra Di2 R8170 2×12 groupset delivers wireless, lightning-fast shifting with superior modulation and hydraulic disc brakes for optimal control, even under high load – including 172.5 mm crank length for optimal power delivery. The VELOPRO Speed Pro 50 carbon wheels with DT Swiss 350 hubs, 24 straight-pull spokes, and 24 mm internal rim width (up to 42 mm tires) provide lightweight speed and stability with Continental Grand Prix 5000 S TR tires. The sleek black finish gives a premium, discreet look perfect for high-end race bikes. Why Choose the V4RS? This Colnago V4RS excels on every terrain: stiff for efficient power transfer, comfortable with 32 mm tire clearance, and versatile for long rides or races. Ideal for ambitious amateurs and pros who want a winner’s bike. Key Features Frame: Monocoque carbon, 798 g (unpainted), size 55 – extremely stiff and light Groupset: Shimano Ultegra Di2 R8170 2×12 – wireless shifting, hydraulic disc brakes Wheels: VELOPRO Speed Pro 50 carbon, DT Swiss 350 hubs, 24 mm internal width, up to 42 mm tires Tires: Continental Grand Prix 5000 S TR – optimized grip and rolling resistance Crank Length: 172.5 mm – perfect for powerful pedal strokes Geometry: Stack 593 mm, reach 403 mm – ideal for riders ~1.78 m Aerodynamics: Up to 6% less resistance in full aero setup Clearance: Up to 32 mm tires for comfort and versatility Color: Black – premium, discreet race look
