E-STREAM EVO 1 27.5 Diamond

This MTB speed measure favors setups that roll efficiently without sacrificing too much traction. As a result, it aims for an all-round feel more than maximum speed. Key drivers include typical trail-width tires, wheel momentum that helps it carry speed between pedal strokes, mid-size wheels that balance agility and momentum, and a more budget-friendly drivetrain that focuses on value.

Uphill performance score: 8.2/10. Within e-mountain bikes, it sits above average. On climbs, the lowest gear feels very easy. That lowest gear comes out around 17.3 gear inches. On the ‘easier low gear’ scale, it sits around ~81% versus similar bikes. Think of “gear inches” like a difficulty score for your easiest gear: lower = more spin-friendly on climbs. Being an e-bike helps on climbs because the assist adds steady push when you need it. It’s set up so climbs feel controlled rather than a grind. Real-world feel depends on setup and size, and some details aren’t always listed, so this is best seen as a well-informed estimate.

For bump control, it’s 6/10 — “Confident trail control”. That typically means noticeably better bump absorption and more consistent tracking on rougher sections. It’s a hardtail setup: the fork manages impacts up front, while the rear stays rigid and direct. It should feel noticeably calmer through repeated bumps and rough patches. Expect more grip and stability compared with basic bump-control setups. Expect steadier tracking on rougher sections without feeling like a long-travel downhill setup.

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

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.

This scores 6.3/10 for comfort, so it feels nicely smooth out on the road. That’s the reason it lands as Race-Stiff. The posture is neutral (posture 5/10), which keeps it balanced — not overly aggressive, not overly relaxed.

Overall, this feels reasonably priced. 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). Based on the spec estimate, it’s about 12% above the typical level for similar builds. Among comparable bikes, it sits around the middle on price (cheaper than about 48% of listings). Quick reference: €4.304 listed versus about €3.846 for a comparable build. Overall, it sits in the expected range for the category.

This setup is aimed at fast trail riding on less extreme terrain. It has about 120 mm of suspension travel (how much it absorbs bumps), which suits smoother trails. It’s listed as Trail, but the parts point more toward Flow Trails.