Polygon Strattos S7D - Text Review

The Polygon Strattos 27D (in its closest sibling spec) rides on an ALX alloy frame (or at higher trims, UCI-approved ACX carbon in the Strattos “S” line) with endurance/race blending geometry.
The frame often features internal cable routing, clean lines, and aerodynamic tube profiles to reduce drag.

In riding, the frame feels stiff under power yet retains enough compliance through the rear triangle to absorb moderate road buzz. The geometry strikes a balance more aggressive than a pure touring bike, but a little more forgiving than an all-out race frame. The fit options (XXS to XXL in Strattos S7D spec) cover a broad range of rider heights.

Cable hiding, integrated seat clamp designs (on some models), and tidy aesthetics contribute to a polished look

The drivetrain on Strattos 27D (modeled on 105 R7000) is a Shimano 105 2×11 setup — 50/34T crank and an 11–34 (or sometimes 11–30) cassette.

Shifting is crisp, precise, and dependable, especially when maintained well. At its price tier, 105 is considered a sweet spot for performance vs value.
In practice, gear jumps are smooth. On steep climbs, care with your effort during shifts helps avoid mis-shifts under load (a general caveat on any drivetrain). The gearing spread handles flats and moderate climbs well, though extremely steep grades might demand heavier climbing gear — something to check depending on your region.

Upgrade path: Because the system is standard 2×11, riders may later upgrade wheels, chain, or cassette without overhauling the frame or basic architecture.

Comfort is one of the Strattos’s strengths. The geometry is tuned toward long-effort usability: you’re slightly leaned forward but not aggressively, letting you maintain posture for longer.
Thanks to the frame (and in upper trims, carbon fork), road imperfections are damped well. The 28C tyres serve as a good middle ground enough cushion but still reasonably fast. Many users riding similar Strattos variants comment that the bike handles less-than-perfect tarmac reasonably.

Some caution: on very rough surfaces or heavy vibration zones, the lack of super-wide tyre clearance (beyond 28 mm) may make things a bit harsher compared to bikes built for touring or gravel. Also, comfort is deeply rider-dependent saddle fit, bar setup and padding all matter.

Hydraulic disc brakes are a major plus for the Strattos line. In wet, dusty, or variable conditions, they outperform rim brakes in modulation and stopping force.
The Shimano 105 hydraulic system gives a reliable, linear brake feel.

Steering is precise and predictable. The interface between fork and frame, with a well-designed head tube and integrated headset, gives direct feel without vagueness even in fast descents. The handling tends to lean sporty, so on tighter or twisty roads the bike responds well to input.

One note: since hydraulic discs introduce a little extra weight and complexity compared to rim brakes, maintaining brake lines, rotors and bleed intervals becomes important — but most riders find the tradeoff worth it.

The wheelset on Strattos 27D / S7D variants is typically a double-wall alloy tubeless-ready rim set (e.g. “Entity / XL2 Disc” style) with sealed bearings.
These are durable and serviceable. Riders sometimes upgrade to lighter or higher-end wheelsets for performance gains later.
Tyres are 700×28C performance or endurance style, in line with modern road usage. Some riders run them slightly lower pressure to absorb more vibration without undue risk.
Accessories: Some Strattos frames may support adding fenders or minimal mounts, though they are not as “touring-ready” as dedicated gravel or expedition frames. The focus is more on performance road / endurance. Internal routing and clean lines help with aesthetics and reducing cable clutter.