Colnago Y1RS YSBO Disc Frameset

Built to Defy Wind.

Designed to defy the wind, the Colnago Y1Rs is the ultimate expression of aerodynamic efficiency. This bike is built to deliver optimal performance in the fastest races, combining advanced technologies and innovative design for sprinters and breakaway specialists.

With a design that drastically reduces air resistance, stiffness optimised for the most powerful sprints, and surprising comfort for long distances, the Y1Rs offers the perfect balance of performance, efficiency, and control.

Cutting-Edge Aerodynamics

The Y1Rs reduces its frontal area by 19% compared to the V4Rs, thanks to innovations like the CC.Y1 handlebars with WYND technology and the curved downtube. These elements reduce drag and optimise airflow in all wind conditions.

Stiff Where It Matters

The frame structure is designed to provide 3.5% greater stiffness than the previous model. This ensures immediate power transfer during the most intense sprints and unparalleled responsiveness.

CC.Y1 Handlebars with WYND Technology

The handlebars feature a "gull-wing" design that minimises airflow separation and improves stability at high speeds. All this without compromising stiffness, making it ideal for the most powerful riders. Sold separately.

DEFY Seatpost Joint

The dual Y-shaped joint improves aerodynamics in the seatpost area and enhances vibration absorption, increasing comfort without sacrificing stiffness. Perfect for long breakaways and endurance stages.

Wind Tunnel-Verified Results

Tests conducted in real-world configurations show that the Y1Rs requires 20 fewer watts than the V4Rs to maintain a speed of 50 km/h. A significant advantage in fast races and windy conditions.

Modern Compatibility and Integrated Design

The Y1Rs is compatible with the most advanced electronic groupsets and offers a fully integrated design, from custom bottle cages to the aerodynamic seatpost. Every detail has been optimized to reduce weight and enhance aesthetics.

DEFY Seatpost Joint

The dual Y-shaped joint improves aerodynamics in the seatpost area and enhances vibration absorption, increasing comfort without sacrificing stiffness. Perfect for long breakaways and endurance stages. This zone was designed on the basis of the new, more permissive UCI regulations on the development of bike shapes. The seatpost joint area is now a sort of union of two inverted ‘y’s’. The seatpost is misaligned in relation to the seat tube, which also has a different angle of inclination. The seat tube now follows the rear wheel, in pursuit of greater aerodynamic performance in a critical area for airflow. The seatpost, on the other hand, is more inclined than usual, ensuring greater compliance. The effect is a bike that - despite the increased stiffness of the frame - is pleasant to ride over long distances and in longer training sessions.

Wind Tunnel-Verified Results

Tests conducted in real-world configurations show that the Y1Rs requires 20 fewer watts than the V4Rs to maintain a speed of 50 km/h. A significant advantage in fast races and windy conditions.

Modern Compatibility and Integrated Design

The Y1Rs is compatible with the most advanced electronic groupsets and offers a fully integrated design, from custom bottle cages to the aerodynamic seatpost. Every detail has been optimized to reduce weight and enhance aesthetics.

Integrated bottle cages

Standard bottles are not aerodynamic. However, they are the lightest and most practical solution both in races and in training. Colnago designed custom bottle cages to perfectly match the shape of the frame, minimizing the aerodynamic loss due to the bottles. Everything at a competitive weight and within UCI constraints. The downtube bottle cage also features support for a Di2 battery in the downtube, further easing mounting and  maintenance.

Read Riding Stiffness Optimisation 

Y1Rs is conceived to be the fastest Colnago road racing bike, and, consequently, the best choice for sprinters. WorldTour sprinters look for two main performances: aerodynamics and stiffness. Colnago has developed new testing setups and methodologies to measure the frame deformations in different points under multiple loads, to simulate what happens in real riding conditions. The deformations are then summed up in one number that Colnago calls Real Riding Stiffness.

With the same approach adopted as for the V4Rs, the stiffness has been increased to offer what the bicycle has been designed for, maximum responsiveness in the final sprint. RRS-Sprint is a combination of rear triangle stiffness, bottom bracket stiffness (out of plane*), fork stiffness (out of plane*) and handlebar stiffness (vertical and lateral). Loads are settled to simulate a sprint of 1500W with an average rider weight of 75kg, RRS-Climbing is a combination of bottom bracket stiffness (in plane*), fork stiffness (in plane) and handlebar stiffness (vertical) and seatpost (in plane*). Loads are settled to simulate a 60kg rider, climbing in a seated position at 390W.

Specifications

• Series: V Series
• Model: Y1Rs
• Weight: 7.2kg
• Weight Limit: This model has an overall maximum limit (combined weight of bicycle, rider and load) of 120 kg
• Frame (material): Colnago Y1Rs carbon frame
• Fork (material, section notes): Bayonet fork for disc brakes, integrated cables
• Headset: ID:35 OD:47 36/45 CeramicSpeed SLT Treated Bearings
• Seatpost: Carbon seatpost, 0 or 15 offset mm
• Through axles: Diameter: 12 mm. length 100 mm (front) - 142 mm (rear)
• Tyre clearance: 32 mm (nominal width)
• Handlebar: Colnago CC.Y1 integrated Cockpit - regular geometry.
• Stem: CCY1 integrated cockpit
• Handlebar Tape: Colnago Grip Black or Colnago WT23 (for WT24 color scheme only)
• Bottle cage: Colnago x Elite Bottle - custom bottle cages for Y1Rs (2x)