Based on the Colnago website, the V5Rs is the latest model in the Colnago V Series and is described as the "ultimate all-round racing bike" designed for professional use.

Key features include:

• Lightweight: It is the lightest frame ever produced by Colnago, with an unpainted, ready-to-paint frame weighing 685 grams, a 12.5% reduction in weight from its predecessor.
  
• Aerodynamics: The V5Rs has a frontal area that is 13% less than the previous model, with thinner profiles for enhanced aerodynamic performance. A narrower head tube also helps to reduce air resistance.
  
• Handling and Ride: The bike has a new, lighter, and more precise fork that allows for a wider tire clearance of 32mm for better grip and handling.

Weight and Construction

• Frameset Weight: The V5Rs is the lightest frame Colnago has ever produced. A ready-to-paint size 485 frame weighs 685 grams, and the total frameset (frame and fork) weighs 1,027 grams. This is a 146-gram weight saving compared to its predecessor, the V4Rs.
  
• Carbon Layup: The frame is built with new lamination techniques and a revised carbon fiber layup to achieve weight savings without compromising the "Real Riding Stiffness" of the V4Rs. This ensures explosive power transfer and stability.
  
• Bottom Bracket: It features a BSA threaded bottom bracket, which simplifies maintenance and contributes to the overall lower weight.
  

Aerodynamics

• Drag Reduction: The V5Rs has a 13% smaller frontal area compared to the V4Rs, measuring 250 cm². This, along with refined tube shapes and a narrower head tube, helps reduce air resistance and saves watts.
  
• Power Savings: In wind tunnel tests with a fully-equipped mannequin, the V5Rs requires 9 watts less power to maintain a speed of 50 km/h compared to the V4Rs. The aerodynamic performance is noted to be on par with many WorldTour-level aero bikes.
  

Handling and Geometry

• Fork: The bike is equipped with a new, lighter, and more precise fork.
  
• Tire Clearance: It has a nominal tire clearance of up to 32mm, which allows for wider tires for improved grip, handling, and speed on rougher surfaces.
  
• Geometry: The geometry is a minor update to the V4Rs, with slightly steeper head tube and seat tube angles for a more forward-oriented position. There are two fork rake options (47mm and 43mm) to optimize handling for different frame sizes.
  
• Seatpost: The V5Rs has a new, proprietary aero seatpost that is much slimmer and deeper than on the V4Rs. It is available with a 15mm offset and a 0mm offset (sold separately).