Gravel Bike GRVL 520 Sram Apex

When the riding is smooth, speed comes down to resistance and weight, and that's what this rating emphasizes. It ends up here thanks to a heavier build, a mass profile that isn't optimized for punchy acceleration, very wide tires that create extra drag, and a more budget-friendly drivetrain that focuses on value. Taken together, those choices reduce wasted energy when you're trying to go fast.

Overall on climbs: 9.9/10. Within Road bikes, it sits near the top. When it gets steep, the gearing feels very easy. The easiest gear works out to about 16.1 gear inches. It’s about as easy as it gets in its peer group — easier than roughly ~100% of similar bikes. We use “gear inches” as a shortcut for climbing gearing. Lower numbers mean you can spin more easily when it gets steep. With roughly 10.9 kg to move uphill, you’ll feel it more as climbs get longer. You’ll be able to keep a steady spin even when it gets steep. Build kits can differ by size and spec level, and not every detail is published by every brand, so use this as a practical guideline.

As a gravel bike, on 47mm-ish tyres, rated 4.4/10 for aero, it leans toward real-world stability first so it’s happier when the route gets rough than when it gets windy. Put simply, it’s more about stability and everyday comfort than cutting through the wind. Wider tyres like this tend to trade a bit of aero efficiency for comfort and confidence. In real riding, it usually feels steady and comfortable, with less advantage on open flats or into a headwind.

Comfort fit - less tuck and easier on neck and shoulders. This is an estimate; exact fit varies by spacers and rider setup.

Why this fit flexibility rating: Because the bar and stem are separate, changing reach or bar shape is usually straightforward. Plus, The front-end is easier to work on, supporting fit tweaks over time. Net result: Adjustable.

Ride comfort is 6.5/10 — on a real ride it feels comfortable. So it’s tagged Balanced overall. It’s running about 47 mm tires on 650b wheels, and extra tire volume helps mute vibration and small bumps on rough lanes and gravel patches. The posture is neutral (posture 5/10), which balances comfort and responsiveness pretty well.

For what you get, the price looks very hard to beat. 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). Based on the spec estimate, it comes in about 21% under the typical level for similar builds. In its peer group, it tends to be better-priced than many, beating about 85% of listings. Quick reference: €1.338 listed versus about €1.692 for a comparable build. Overall, it looks like a great-value pick in its category.

This bike is aimed at exploring off the main roads on tougher mixed terrain. The tire size is around 47 mm, which supports comfort and control on rougher ground. The wheel setup (650b) supports that direction.