AK105 Carbon Racing Bike 105 R7120

This road speed rating is tuned for paved riding - think steady fast tempo and easier acceleration. What pushes it in this direction is typical road tire sizing assumptions, aerodynamics that likely help it hold speed once you're rolling, and a solid drivetrain that supports efficient riding. As a result, it prioritizes ease of riding over chasing the very fastest splits.

On steep roads, it comes in at 1.1/10. Within Road bikes, it sits near the bottom. The lowest gear is very tall when the road tilts up. That lowest gear comes out around 42.2 gear inches. Most comparable bikes have an easier low gear; this is easier than only about ~2% of them. Gear inches is basically “how easy is the easiest gear”. Lower numbers help you keep your legs spinning on steep bits. Expect more grinding on climbs than easy spinning. Build kits can differ by size and spec level, and not every detail is published by every brand, so use this as a practical guideline.

Looking at it as a race-focused setup, an aero score of 7.5/10 means that aero intent is clearly part of the package especially once speeds rise. The short version is: it’s built with speed in mind, with choices that reduce wind drag once you’re riding faster. Different categories trade aerodynamics against comfort and stability—race is part of that story. Rims around 50mm are more of an all-round choice than a pure aero choice. These wheels lean more toward stability and versatility than pure aero. A more integrated front end usually reduces minor drag points around the cockpit. Specs can vary by market and model year, so the summary follows the strongest published signals. In real riding, it tends to reward holding speed: the faster you go, the more the aero design helps.

Sporty fit - more tuck for efficiency, but still manageable for many riders. Mostly geometry-based, with a small category-based estimate.

Fit flexibility summary: Because the bar and stem are separate, changing reach or bar shape is usually straightforward. At the same time, Less routing complexity makes swaps and adjustments more practical. Overall, it falls into Adjustable. This mainly reflects how easy it is to adjust or swap key fit parts over time.

Comfort comes out to 2.8/10, which usually translates to a more responsive than cushy ride. That’s the reason it lands as Firm. The posture is race-leaning (posture 7/10), which puts more weight forward, so you notice more feedback through the hands and saddle.

This looks like a great buy for the spec on paper. The value score is 1–10. Higher means better value for money; lower means the price is high for what you get. Uses MSRP as a baseline; real-world prices can be lower (discounts can change the value). Based on the parts list, it’s roughly 71% cheaper than what similar builds typically cost. Against similar bikes of the same type and age, it’s usually on the cheaper side, beating about 100% of listings. To anchor it: price €1.799 versus an estimated €6.216 for a similar build. Overall, it looks like a great-value pick in its category.

This bike is best when your rides stay on clean tarmac. Tire size details aren’t available here, so the label follows the overall setup and category cues. The wheel setup (700c) supports that direction.