Spezia Ultegra Di2 12 Speed

It's quick enough for most rides, but not a pure fastest-possible build. This road-focused speed score is primarily about smooth-surface momentum and top-end efficiency. 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.

Climbing rating: 2.3/10. Within Road bikes, this comes out below average. On longer climbs, the gearing lands on the tall side. Your easiest gear lands around 30.6 gear inches. In its peer group, it lands around the easier ~32% for low-gear climbing. “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. It can climb, but you’ll likely prefer smoother pacing on longer hills. Different builds can shift the feel a bit, and some manufacturer specs aren’t always publicly listed, so consider this a helpful direction.

Looking at it as a race-focused setup, with a 7.1/10 aero score, it keeps decent wind efficiency without becoming a specialist 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. Tyres around 30mm are a practical middle ground, with a small aero trade-off compared with narrower race tyres. It’s a middle-ground feel: not the fastest possible in the wind, but not holding you back either.

Sporty fit - more tuck for efficiency, but still manageable for many riders. Based on full geometry data.

So we classify it as Adjustable. Separate bar and stem components keep fit changes practical - A more service-friendly routing setup makes changes easier.

This scores 3.5/10 for comfort, so it feels quite direct out on the road. So it’s tagged Firm overall. It’s running about 30 mm tires on 700c wheels, and it softens the edges a little, without feeling plush on chipseal and broken pavement. The posture is race-leaning (posture 7/10), which tends to feel more direct, especially over rougher sections.

This bike is built for smooth pavement and fast road riding. Tires around 30 mm usually mean it’s tuned for smooth-road speed. Overall, the setup matches this surface range well.