Supersonica SLR SHIMANO DURA-ACE Di2 R9270 2x12S

For road riding, the score leans toward outright pace rather than comfort-first priorities. Most of the story comes from a fairly average weight, an aero-leaning setup that reduces drag at higher speeds, narrow road tires that keep resistance low, and a high-end drivetrain that tends to feel crisp under load. Over longer efforts, it sits toward the faster end for comparable bikes.

On steep roads, it comes in at 4.7/10. Within Road bikes, it lands around the middle. On steep gradients, you’ll be grinding more than spinning. The easiest gear works out to about 36.0 gear inches. Most comparable bikes have an easier low gear; this is easier than only about ~4% of them. “Gear inches” sounds nerdy, but it’s just a quick way to describe how easy your lowest gear is to turn uphill. Lower usually means easier. At about 9.4 kg, it’s in a normal range, so gearing matters more than weight swings here. Expect more grinding on climbs than easy spinning. Specs can vary by size and build, and some manufacturer details aren’t always published, so treat this as a strong guide rather than a guarantee.

Scoring 9.9/10 on aero, aero is one of the main points of the design where aerodynamics is the main lever. The short version is: it’s strongly speed-focused, designed to reduce wind drag when you’re riding fast. Its triathlon label helps explain the balance between speed, comfort, and versatility. A lower front end can help you tuck in a bit, even if the bike itself isn’t built as an aero specialist. That tyre width is common on performance road builds and tends to suit aero goals. A more integrated front end usually reduces minor drag points around the cockpit. Different brands share different amounts of detail, so this uses the most consistent cues that are available. On fast flats and windy days, it’s built to feel like it wastes less energy pushing air.

Race / Pro fit - an aggressive tuck meant for hard efforts over pure comfort. That's driven by you get a very large drop: roughly 154 mm from saddle to bar, plus about 606 mm of stretch forward (very long). Expect a lean angle around 47 degrees.

Net result: Moderately Adjustable. Main reasons for the fit flexibility result: Separate bar and stem components keep fit changes practical; A more service-friendly routing setup makes changes easier. In practice, it is about how easy fit changes are with normal parts and service work.

Comfort comes out to 2.1/10, which usually translates to a harsh on rough surfaces ride. That’s the reason it lands as Race-Stiff. It’s running about 26 mm tires on 700c wheels, and you feel more of the road texture with narrow tires on chipseal and broken pavement. The posture is race-leaning (posture 9/10, torso ~47°), which puts more weight forward, so you notice more feedback through the hands and saddle.

This looks expensive compared with similar bikes. 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). On the spec comparison, it sits roughly 246% above what similar builds typically cost. In its peer group, it’s one of the pricier listings, beating only about 0% of them. To anchor it: price €21.527 versus an estimated €6.216 for a similar build. Bottom line: the price looks high for what’s included.

This bike is built for smooth pavement and fast road riding. The tire size is around 26 mm, which is typical for fast road setups. Overall, the setup matches this surface range well.