Colnago V4 Shimano Ultegra Di2 2025: Review, Test, Pros, Cons, Problems, Performance, Opinions, and Everything You (Really) Need to Know

Colnago V4 Shimano Ultegra Di2 2025: A Full Review

This article provides a comprehensive review of the Colnago V4 Shimano Ultegra Di2 2025 road bike, covering everything you need to know about its performance, features, and potential drawbacks.

Build Quality

The Colnago V4 Shimano Ultegra Di2 2025 has a relatively high price tag, but its build quality justifies the cost. It is very well-made and, in many ways, superior to its direct competitors. The attention to detail on the frame's finish and the overall quality of the components are impressive. While expensive, the bike's price is competitive within its class.

Frame

The frame of the Colnago V4 Shimano Ultegra Di2 2025 is a completely new design, though it shares many similarities with the V4Rs. The key difference lies in the type of carbon used. The frame is aerodynamic and stiff, making it highly competitive. It also offers a great range of colors and customization options, along with a good selection of sizes.

However, the bike isn't exceptionally light. At 8.0 kg, the weight might be a drawback for a bike in the €7,000 price range, especially for serious climbers.

Componentry

The various build options available for this bike are all quite costly, but this is a given for even the "entry-level" models in the Colnago lineup. Despite being considered an affordable version within the brand, it remains a well-made, high-quality bicycle.

Comfort

Despite its race-oriented design, the bike's riding comfort is good, though not exceptional. It's comfortable enough for long distances without causing back pain, and it even offers a better ride than the V4Rs. While it's not as comfortable as a bike like the C68, it holds its own against other similar frames in terms of purpose, weight, and price range. Among mid-range road bikes, it ranks near the top for comfort, proving to be a solid performer.

Handling

The Colnago V4 is an incredibly intuitive bike to ride. It's agile without ever feeling twitchy or imprecise. It’s easy to control at high speeds and on descents. It handles perfectly on rough asphalt, always feeling secure and easy to manage. It's not very sensitive to crosswinds, offering excellent stability.

The geometry is well-suited for both flat roads and climbs, where it handles tight hairpins with ease, allowing you to maintain the best line. The stability and braking performance are excellent, providing great stopping power. The bike’s safe and easy handling is also noticeable at a leisurely pace.

Performance

The Colnago V4 Shimano Ultegra Di2 2025 offers a very competitive performance on all types of terrain for its price. It's a true all-around bike that's fast and competitive on flats, climbs, and descents. It's not the lightest bike, so it might not be the best choice for a pure climber. However, it's perfect for riders who can put out high watts and take full advantage of the frame's stiffness. Its performance is competitive on flat and hilly terrain, and it performs excellently on climbs and descents. For a strong rider, this bike can outperform many others on the market. The price-to-performance ratio is good; it's not a bargain, but the bike is very competitive and a winner on many courses.

Strengths and Weaknesses

The Colnago V4 Shimano Ultegra Di2 2025 is a high-performance road bike that can compete with the best in its price range. While it's not cheap, it has excellent build quality. It may not be the lightest, but it offers an excellent stiffness-to-weight ratio. The handling is precise, and it provides great stability at high speeds. The high price is ultimately in line with its competitors. Overall, it's a very capable and competitive all-around bike.

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NDR: the photo does not refer to the specific bike being tested