Giant Defy Advanced SL / Advanced Pro / Advanced
Endurance road · 6 sizes
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- Bike
- Giant Defy Advanced SL / Advanced Pro / Advanced · Endurance road · 6 sizes · integrated cockpit
- Geometry
- giant-bicycles.com, fetched 29 Aug 2026, re-checked, no differences
- Cockpit
- Generic stem and bar, assumed
- Solved with
- cover 15 mm (assumed), max spacers 40 mm (assumed), stem clamp centre 20 mm (assumed), so every verdict carries ±10 mm at the bar
- Sheet
- 6 September 2026 · 210 bikes, 43 makes, 1,262 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.| Size | Stack (mm) | Reach (mm) | Head angle (deg) | Seat angle (deg) | Head tube (mm) | Chainstay (mm) | Wheelbase (mm) | Standover (mm) |
|---|---|---|---|---|---|---|---|---|
| XS | 527 | 369 | 70.5 | 74.5 | 125 | 420 | 995 | 705 |
| S | 541 | 375 | 71.8 | 74 | 135 | 420 | 994 | 733 |
| M | 558 | 380 | 72.5 | 73.5 | 150 | 420 | 998 | 762 |
| ML | 577 | 384 | 72.5 | 73 | 175 | 420 | 1010 | 796 |
| L | 596 | 393 | 72.5 | 73 | 195 | 420 | 1025 | 814 |
| XL | 615 | 402 | 72.5 | 73 | 215 | 420 | 1040 | 841 |
The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.
The ML 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.
Stock stem and bar per sizeXS 80 x 400, S 90 x 400, M 100 x 420, ML 100 x 420, L 110 x 440, XL 110 x 440 (stem length x bar width, mm)
In the maker's words
Kept whole, as I read it off giant-bicycles.com.Defy Advanced SL 0 (2025): Giant Contact SLR Aerolight one-piece bar/stem (widths 400/400/420/420/440/440 mm, lengths 80/90/100/100/110/110 mm per size, rows N and O); the Advanced Pro and Advanced builds use the Contact SLR / Contact SL stem and bar in the same schedule.
Cockpit and seatpost, in the maker's words · 55 words
Defy Advanced SL 0 (2025): Giant Contact SLR Aerolight one-piece bar/stem (widths 400/400/420/420/440/440 mm, lengths 80/90/100/100/110/110 mm per size, rows N and O); the Advanced Pro and Advanced builds use the Contact SLR / Contact SL stem and bar in the same schedule. Stem angle, spacers and top-cover height not published on the bike page.
OFFICIAL SOURCE: Giant UK page for the Defy Advanced SL 0 (2025). Source: html table (official Giant UK product page, "Sizing Guide and Geometry" section, HTML table with mm and inch spans; the mm values were taken; fetched 2026-08-29
How I read the maker's table
the Defy Advanced Pro 0 (2025) and Defy Advanced 1 (2025) pages (fetched, https://www.giant-bicycles.com/gb/defy-advanced-pro-0-2025 and /gb/defy-advanced-1-2025) print identical tables in every row including the seat tube, so this is the platform table for all three tiers of the current Defy (launched 2023 as MY2024). The URL /gb/defy-advanced-pro-0-2023 redirects to the 2025 page, so Giant UK no longer serves the previous Defy generation. Model year 2025 (page title). Angles are printed to one decimal.
Source: html table (official Giant UK product page, "Sizing Guide and Geometry" section, HTML table with mm and inch spans; the mm values were taken; fetched 2026-08-29, HTTP 200)