Skip to content
BikeTwins
How it works

Giant Propel Advanced / Advanced SL

Aero road · 6 sizes

Sign in and add the bike you ride, and this table will say what each size needs for your position. Sign in This is the bike I ride
Bike
Giant Propel Advanced / Advanced SL · Aero 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 517 376 71 74.5 120 405 976 722
S 528 383 72.3 74 130 405 977 753
M 545 388 73 73.5 145 405 980 770
ML 562 393 73 73 165 405 991 794
L 581 402 73 73 185 405 1006 821
XL 596 412 73 72.5 200 405 1020 834

The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.

Seat tube 545 mmHead tube 165 mmTop tube 565 mmDown tubeChainstay 405 mmSeat stayFork 991 mm stack 562reach 393Head tube top 393 / 562BB 0 / 0

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 110 x 420, L 110 x 440, XL 120 x 440 (stem length x bar width, mm)

In the maker's words

Kept whole, as I read it off giant-bicycles.com.
Propel Advanced 1 (2025): stock bar Giant Contact SLR Aero bar with the Contact SLR Aero stem (widths 400/400/420/420/440/440 mm and stem lengths 80/90/100/110/110/120 mm per size from the geometry table rows N and O); the Advanced SL builds use the Contact SLR Aerolight one-piece bar/stem in the same size schedule.
Cockpit and seatpost, in the maker's words · 66 words
Propel Advanced 1 (2025): stock bar Giant Contact SLR Aero bar with the Contact SLR Aero stem (widths 400/400/420/420/440/440 mm and stem lengths 80/90/100/110/110/120 mm per size from the geometry table rows N and O); the Advanced SL builds use the Contact SLR Aerolight one-piece bar/stem in the same size schedule. Giant does not publish stem angle, spacer heights or top-cover height on the bike page.
OFFICIAL SOURCE: Giant UK page for the Propel Advanced 1 (2025), the current-generation Propel (launched 2022 as MY2023). 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 Advanced (post) seat tube values are stored here. 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)