IAx Advanced 105 Di2

On paved roads, the rating is mostly about fast cruising and how the setup supports higher speeds. In practice, it sits toward the faster end for comparable bikes. The strongest influences are narrow road tires that keep resistance low, an aero-leaning setup that reduces drag at higher speeds, a solid drivetrain that supports efficient riding, and a relaxed posture that gives up some aero efficiency.

If your rides include hills, it rates 3.3/10 for climbing. Within Road bikes, it lands below average. The low gear is workable, but not super easy on steep ramps. The easiest gear works out to about 27.0 gear inches. In its peer group, it lands around the easier ~58% for low-gear climbing. We use “gear inches” as a shortcut for climbing gearing. Lower numbers mean you can spin more easily when it gets steep. Good for keeping cadence steady on climbs without overcooking it. Different builds can shift the feel a bit, and some manufacturer specs aren’t always publicly listed, so consider this a helpful direction.

As a triathlon bike, coming in at 10.0/10 on aero, it’s a speed-first, wind-focused setup and it’s meant to pay you back at high speed. The short version is: it’s strongly speed-focused, designed to reduce wind drag when you’re riding fast. The triathlon category also hints at the intent behind the design. This setup supports a more race-leaning posture, helping you present less of your body to the wind. With rims around 62mm deep, the wheels clearly lean toward an aero setup. Deeper rims like this can matter on open roads once speeds rise. This tyre size generally plays nicely with aero goals compared with very wide all-road tyres. The faster you ride, the more this aero focus tends to show up in how it holds speed.

Race / Pro fit - an aggressive tuck meant for hard efforts over pure comfort. This is mainly because there's about 150 mm of drop to the bars (very large), with roughly 593 mm of forward stretch to the bar (very long). Plan for roughly 46 degrees of lean.

Fit adjustability is shaped by a few key choices: Standard cockpit parts make it simpler to fine-tune your position over time. Also, Less routing complexity makes swaps and adjustments more practical. So it lands in Moderately Adjustable.

This scores 1.8/10 for comfort, so it feels stiff-feeling out on the road. That’s the reason it lands as Race-Stiff. It’s running about 25 mm tires on 700c wheels, and narrow tires usually mean higher pressure, so more buzz comes through on chipseal and broken pavement. The posture is race-leaning (posture 8/10, torso ~46°), which tends to feel more direct, especially over rougher sections.

Overall, this feels reasonably priced. Value is scored 1–10: higher is better value, lower means you’re paying more than similar bikes. Uses MSRP as a baseline; real-world prices can be lower (discounts can change the value). Based on the spec estimate, it’s about 11% above the typical level for similar builds. Among comparable bikes, it sits around the middle on price (cheaper than about 60% of listings). To anchor it: price €5.774 versus an estimated €5.206 for a similar build. Not every spec detail is consistently published, so think of this as a strong hint rather than the last word. Overall, it sits in the expected range for the category.

This bike is best when your rides stay on clean tarmac. Tires around 25 mm usually mean it’s tuned for smooth-road speed. Wheel choice (700c) fits the kind of surfaces this bike targets.