Winspace T1550
Aero road · 5 sizes
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- Bike
- Winspace T1550 · Aero road · 5 sizes
- Geometry
- winspace.cc, from the Internet Archive's copy of 2025, fetched 22 Oct 2026, read off the maker's chart, re-checked, no differences
- Seat angle convention
- Calculated from Winspace's table
- Cockpit
- Generic stem and bar, assumed
- Solved with
- cover 10 mm (assumed), max spacers 40 mm (assumed), stem clamp centre 20 mm (assumed), so every verdict carries ±10 mm at the bar
- Sheet
- 22 October 2026 · 879 bikes, 79 makes, 4,979 sizes in the catalogue
Geometry, every size, from the maker's table
The tinted row is the size drawn beside it. Press a size to draw it.The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.
The M drawn to scale from the table, with no build on it. Stack and reach run from the bottom bracket to the top of the head tube; every size is solved from those two. One square is 100 mm.
The maker's cockpit
No stock cockpit I can name, so every size is solved on a generic stem and bar unless you choose one on the sheet.Generic stem and barAssumedNo bar is listed for this frame.
Frame facts
read off the maker's page: winspace.cc, from the Internet Archive's copy of 2025- Tyre clearance
- 28 mm
- Bottom bracket
- BB86
- Axles and brakes
- not published
- UDH
- not published
- Seatpost
- proprietary aero post, included
- Frame weight
- 880 g, size M
- In the box
- frame, fork, seatpost, headset, Di2 cable stoppers, spare derailleur hanger
In the maker's words
Kept whole, as I read it off winspace.cc, from the Internet Archive's copy of 2025.Sold as a frameset (frame, fork, seatpost, headset, Di2 cable stoppers, spare derailleur hanger).
Cockpit and seatpost, in the maker's words · 95 words
Sold as a frameset (frame, fork, seatpost, headset, Di2 cable stoppers, spare derailleur hanger). Head tube "NO.55R 1.5"/ACR/STD (headset included.)": FSA ACR full-internal routing through a 1-1/2 in upper bearing; the 2023 page warned "The Zero Integrated Bar is NOT compatible with T1550", and Winspace later sold the "Winspace Zero SL Integrated Bar and Stem for T1550" (https://www.winspace.cc/products/winspace-zero-sl-integrated-bar-and-stem-for-t1550). No stem length or bar width per size, so stock_stem_length and stock_bar_width are null. Seatpost: "Proprietary Aero Seat Post (Included.)", setback 8 mm on XS to M and 17 mm on L and XL per the table.
OFFICIAL SOURCE, ARCHIVED: Winspace's own Shopify product page for the first T1550 frameset (the page Winspace kept after the T1550 2nd Gen arrived. Source: image_table (Internet Archive snapshot 2025-08-07 of the maker's product page; the table is the image under the page's "Geometry" heading
How I read the maker's table
winspace-t1550-gen2 is that later frame, a different table) as the Internet Archive captured it on 2025-08-07 (https://web.archive.org/web/20250807174827/https://www.winspace.cc/products/t1550-frameset). The frame is no longer on Winspace's live store (product sitemap fetched 22 Oct 2026); the archive holds the Shopify page from Apr to Nov 2025 and the WordPress page https://www.winspace.cc/product/t1550-frameset/ from May 2023, which says "The disc brake version may be shipped in May; While the rim brake version may be shipped at the end of June" (a 2023 launch). model_year 2025 is the year of the capture used. TABLE (one image, a letter drawing over a table, XS/S/M/L/XL): Seat Tube Length A 410/440/470/510/550; Stack B (drawn vertically from the BB centre to the head tube top); Reach C (horizontal to the head tube top); Top Tube Length D (drawn horizontal, recorded as top_tube_effective); Head Tube Length E; Wheelbase F; Chainstay Length G; BB Drop H; BB Height I 274 every size (not in the schema); Seat Tube Angle J (the XL cell prints "73.5" without its degree sign); Head Tube Angle K; Fork Length L 370 every size (not in the schema); Fork Rake M; Trail(28C) N (maker-published for a 28 mm tyre, kept; tyre_width_mm 28); Seatpost Length O 350/350/350/400/400 and Seatpost Setback P 8/8/8/17/17 (the proprietary aero post the frameset ships with, so each size carries posts [its setback]); Standover Height Q. "*All units are mm unless otherwise stated". The page's text gives sizes "XS (410mm), S (440mm), M (470mm), L (510mm), XL (550mm)". STACK on the XS is 502 and the S 507 (5 mm apart, where the other steps are 10 to 30): as printed, and it closes its own top tube (370 + 502 / tan 75.5 = 499.8 against 500). Bike Insights' T1550 2023 (citing the WordPress page) prints the XS stack 505 and standovers 685/705/750/770/785 against this table's 729/745/767/799/828: the 2023 page carried two geometry images (T1550_Geomtery.jpg and T1550_Geomtery_1.jpg) not yet read, because web.archive.org blocked this machine on 22 Oct 2026; a later pass should read them.
Source: image_table (Internet Archive snapshot 2025-08-07 of the maker's product page; the table is the image under the page's "Geometry" heading, https://cdn.shopify.com/s/files/1/0912/6101/0215/files/7_94095e30-f085-41c2-b1a8-a2693c6d3cb2.jpg?v=1753341158, 1161x2048 px, headed "T1550 Geometry"; read by eye, image NOT stored)
