Astra Shimano Ultegra 8170 Di2 Disc

On asphalt, it's mainly a question of resistance and efficiency, and that's what the score summarizes. In real riding, it sits toward the faster end for comparable bikes. It ends up here thanks to all-round road tires that balance speed and comfort, an aero-leaning setup that reduces drag at higher speeds, and a solid drivetrain that supports efficient riding.

How it climbs: 2.3/10. Within Road bikes, it sits below average. On longer climbs, the gearing lands on the tall side. That lowest gear comes out around 30.6 gear inches. On the ‘easier low gear’ scale, it sits around ~32% versus similar bikes. Gear inches is basically “how easy is the easiest gear”. Lower numbers help you keep your legs spinning on steep bits. A good middle-ground if you want mixed routes that include some hills. 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.

Category-wise (race-focused), an aero score of 7.2/10 means that with a fairly neutral fit, it’s an all-round aero level so it feels ‘quick enough’ without being a pure aero build. The short version is: it’s a balanced middle ground: some streamlining, but not an extreme aero setup. Its race label helps explain the balance between speed, comfort, and versatility. The fit looks fairly neutral, so aerodynamics depends more on the overall design and components than on an extreme position. That tyre width is common on performance road builds and tends to suit aero goals. Not every brand publishes the same detail, so this leans on the clearest available specs. It’s a middle-ground feel: not the fastest possible in the wind, but not holding you back either.

Sporty fit - a performance-leaning position that encourages speed. That's driven by you get a large drop: roughly 95 mm from saddle to bar, plus about 560 mm of stretch forward (long). You'll likely be near 38 degrees of lean.

What drives the fit flexibility here: Standard cockpit parts make it simpler to fine-tune your position over time - A more service-friendly routing setup makes changes easier. Overall, it falls into Adjustable. In practice, it is about how easy fit changes are with normal parts and service work.

Comfort comes out to 3.2/10, which usually translates to a quite direct ride. That’s why it’s labeled Firm. It’s running about 28 mm tires on 700c wheels, and you feel more of the road texture with narrow tires on chipseal and broken pavement. The posture is neutral (posture 6/10, torso ~38°), which keeps things neutral and easy to live with.

Against comparable bikes, this comes out looking overpriced. 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). On the spec comparison, it sits roughly 54% above what similar builds typically cost. Compared with similar bikes, it trends a little expensive (cheaper than about 33% of listings). To anchor it: price €5.669 versus an estimated €3.684 for a similar build. Put simply: it’s priced more like a premium pick than a value buy.

This bike is best when your rides stay on clean tarmac. Tires around 28 mm usually mean it’s tuned for smooth-road speed. Overall, the setup matches this surface range well.