Sum Shimano Ultegra Di2 – Atten

For road bikes, the speed score favors setups that waste less energy at higher speeds. A few practical factors stand out: 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. Add it all up and you get a clear tilt toward speed or toward utility.

Climbing rating: 1.8/10. Within Road bikes, it lands near the bottom. On longer climbs, the gearing lands on the tall side. Your easiest gear lands around 32.4 gear inches. Compared with similar bikes, this low gear is easier than about ~18% 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. Expect more grinding on climbs than easy spinning. Different builds can shift the feel a bit, and some manufacturer specs aren’t always publicly listed, so consider this a helpful direction.

In race-focused terms, coming in at 7.6/10 on aero, it leans toward speed once pace rises and it’ll feel quicker on open roads. In everyday language, it’s built with speed in mind, with choices that reduce wind drag once you’re riding faster. The race category also hints at the intent behind the design. 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. 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. That's driven by you get a large drop: roughly 106 mm from saddle to bar, plus about 572 mm of stretch forward (long). Plan for roughly 40 degrees of lean.

In Road, This rating is mainly driven by the parts that affect adjustability: Standard cockpit parts make it simpler to fine-tune your position over time. Another point: Routing is relatively straightforward, which helps when you change cockpit parts. That is why we tag it Moderately Adjustable.

Comfort comes out to 3.0/10, which usually translates to a more responsive than cushy ride. That’s the reason it lands as Firm. It’s running about 28 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 7/10, torso ~40°), which puts more weight forward, so you notice more feedback through the hands and saddle.

For the spec, this is priced well into premium territory. 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 60% above what similar builds typically cost. Compared with similar bikes, it trends a little expensive (cheaper than about 29% of listings). Quick reference: €6.668 listed versus about €4.174 for a comparable build. Put simply: it’s priced more like a premium pick than a value buy.

This setup is focused on speed and efficiency on paved roads. The tire size is around 28 mm, which is typical for fast road setups. Overall, the setup matches this surface range well.