Polygon Strattos S3 (2025)

Polygon’s tube shaping leans toward efficiency and a sporty posture — not an aggressive race tuck, but forward-leaning enough for tempo work. Internal cable routing and a tapered headtube tidy the profile and improve front-end stiffness. The geometry is rider-friendly for a broad range of sizes, making it a good choice for enthusiasts and newer road riders who still want a performance feel.

Polygon ships the Strattos S3 with 2×9 Shimano drivetrains in most markets — commonly Sora or Claris depending on region — which gives an 18-speed spread that’s practical for climbs and flats alike. Shifting is dependable for the class: precise enough for training and weekend rides, while offering predictable gearing jumps for mixed terrain. These groupsets also make future upgrades straightforward if you want a crisper, higher-end kit later.

The geometry gives a slightly race-biased stance but remains comfortable over longer outings; you’ll be forward enough for efficient power transfer while still able to sit up for endurance days. The standard 700×25C tyres favor rolling speed; if you ride rougher lanes, moving up to a 28mm tyre (if frame clearance allows) would buy you more cushioning.

The Strattos S3 uses Tektro caliper brakes (R315 on many builds) — a light, low-maintenance option that’s fine in dry conditions and keeps weight down. In wet weather you’ll need a little more lever modulation compared with discs, but for most riders the tradeoff is acceptable, especially at this price point. Steering is direct and predictable thanks to the tapered headtube/carbon fork combo; the bike feels precise when changing pace or cornering.

Polygon fits double-wall alloy rims with standard road hubs and 700×25C tyres — a fast, efficient wheelset that’s also easy to service. The wheels are robust enough for daily riding and occasional spirited efforts; sealed hubs or upgraded bearings are an obvious later upgrade if you’re chasing lower rolling resistance and less maintenance. The stock tyre width favors speed on smooth tarmac — swap to slightly wider rubber if your roads are rougher.