SRfive – Ultegra Di2 12 Speed

This road-speed measure focuses on efficient pace on asphalt, where drag and rolling resistance matter most. In comparison with more aero-focused bikes, this build is shaped by 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.

On steep roads, it comes in at 1.8/10. Within Road bikes, it sits near the bottom. On longer climbs, the gearing lands on the tall side. Your easiest gear lands around 32.4 gear inches. On the ‘easier low gear’ scale, it sits around ~18% versus similar bikes. Think of “gear inches” like a difficulty score for your easiest gear: lower = more spin-friendly on climbs. 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.

On the triathlon side of things, aero-wise, at 9.9/10, it’s built to minimize air resistance at pace and it’s built to feel efficient at pace. What that means on the road 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. 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. Specs can vary by market and model year, so the summary follows the strongest published signals. The faster you ride, the more this aero focus tends to show up in how it holds speed.

Balanced fit - a neutral road posture that suits most riders. You get this posture because the cockpit sits 100 mm below the saddle (a large drop), and the cockpit stretches you forward by ~569 mm (long). Plan for roughly 39 degrees of lean. Spacer height is roughly 11 mm.

Net result: Moderately Adjustable. Separate bar and stem components keep fit changes practical, Routing through the headset can make cockpit swaps harder than normal internal routing. Plus, System terms found in the spec text include: ACR. This mainly reflects how easy it is to adjust or swap key fit parts over time.

This scores 3.2/10 for comfort, so it feels quite direct out on the road. 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 neutral (posture 6/10, torso ~39°), which keeps things neutral and easy to live with.

Overall, this looks like solid value for the build. 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 estimate, the price is close to what we’d expect for a comparable build. In its peer group, it tends to be better-priced than many, beating about 79% of listings. Quick reference: €5.229 listed versus about €5.584 for a comparable build. Put simply: it’s competitively priced for what you get.

This bike is built for smooth pavement and fast road riding. Tires around 28 mm usually mean it’s tuned for smooth-road speed. Wheel choice (700c) fits the kind of surfaces this bike targets.