Models · Polygon · Strattos

Polygon Strattos S Alx (2027)

road · aluminium · sizes S–XL Manufacturer’s website

Geometry ?

Polygon Strattos S Alx 2027 geometry in sizes S–XL: stack 510.3–583.4 mm, reach 383.5–391.6 mm, head angle 72.5–73°.

	S	M	L	XL
Stack	510.3 mm	533.3 mm	557.2 mm	583.4 mm
Reach	383.5 mm	387.1 mm	390 mm	391.6 mm
Head angle	72.5°	73°	73°	73°
Seat angle	74.5°	74°	73.5°	73°
Seat tube (?)	470 mm	500 mm	520 mm	550 mm
Head tube	105 mm	130 mm	155 mm	185 mm
Top tube (effective)	525 mm	540 mm	555 mm	570 mm
BB drop	72.5 mm	70 mm	70 mm	67.5 mm
Chainstay	415 mm	415 mm	415 mm	415 mm
Wheelbase	977.3 mm	984.8 mm	995 mm	1005.9 mm
Standover	715.7 mm	746.5 mm	767.1 mm	797 mm
Stock build by size
Stem	90 mm	100 mm	100 mm	110 mm
Stem angle	−7°	−7°	−7°	−7°
Bar width	400 mm	400 mm	420 mm	420 mm

(?) by the seat tube length: the manufacturer doesn’t say whether it’s measured centre to centre (c-c) or centre to top (c-t).

Source: polygonbikes.com, checked 12 Nov 2026 · bar position: worked out from published data

Stock build

Strattos S2 / Strattos S3 / Strattos S4

Source: polygonbikes.com, checked 12 Nov 2026

Frames with similar geometry

Stack and reach within 12 mm of size L (stack 557.2 / reach 390 mm).

Polygon Strattos S Alx (2024)size L · stack 557 / reach 390 mm Ceepo Stinger (2026)size L · stack 557 / reach 390 mm Colnago V5Rs (2026)size 510 · stack 557 / reach 390 mm De Rosa Idol (2026)size 507 · stack 557 / reach 390 mm Polygon Strattos S Carbon (S6D/S7D) (2026)size L · stack 558 / reach 390 mm Ari Veyo (2026)size M · stack 557 / reach 391 mm

Spotted a mistake or a missing build? Let me know.