iAEROLIGHT PRO 1.9

For road-style bikes, the score is a proxy for how fast the build feels on normal pavement. The strongest influences are all-round road tires that balance speed and comfort and a high-end drivetrain that tends to feel crisp under load. It's the combination that matters: weight, rolling resistance, and (for road) aerodynamics. Under the hood, aero efficiency is a major part of the speed feel here.

How it climbs: 3.3/10. Within e-road bikes, it ranks below average. It has a middle-of-the-road low gear for climbing. That lowest gear comes out around 27.0 gear inches. On the ‘easier low gear’ scale, it sits around ~54% versus similar bikes. “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. The motor support helps you keep rolling when the slope kicks up. It won’t be the absolute best climber, but it won’t hold you back on most climbs either. Different builds can shift the feel a bit, and some manufacturer specs aren’t always publicly listed, so consider this a helpful direction.

Category-wise (aero), at 8.8/10 for aerodynamics, with tidier routing up front, aero is one of the main points of the design so the faster you ride, the more it shows. What that means on the road is: it’s strongly speed-focused, designed to reduce wind drag when you’re riding fast. This tyre size generally plays nicely with aero goals compared with very wide all-road tyres. A tidier cockpit and cable routing can help a little once you’re riding quickly. Different brands share different amounts of detail, so this uses the most consistent cues that are available. The faster you ride, the more this aero focus tends to show up in how it holds speed.

Balanced fit - a middle ground between comfort and speed. Some measurements were missing, so part of this is estimated.

Net result: Moderately Adjustable. This rating is mainly driven by the parts that affect adjustability: This front-end is not locked into a one-piece system, which helps adjustability, With headset routing, adjustments often require more disassembly - System terms found in the spec text include: ACR.

This scores 3.1/10 for comfort, so it feels quite direct out on the road. So it’s tagged Firm overall. 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), which puts more weight forward, so you notice more feedback through the hands and saddle.

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 36% above what similar builds typically cost. In its peer group, it’s one of the pricier listings, beating only about 17% of them. To anchor it: price €13.731 versus an estimated €10.103 for a similar build. Bottom line: the price looks high for what’s included.

This setup is focused on speed and efficiency on paved roads. Tires around 28 mm usually mean it’s tuned for smooth-road speed. Wheel choice (700c) fits the kind of surfaces this bike targets.