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Ridley Astr / Astr RS

Gravel · 5 sizes

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Bike
Ridley Astr / Astr RS · Gravel · 5 sizes
Geometry
ridley-bikes.com, fetched 21 Oct 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
22 October 2026 · 686 bikes, 74 makes, 3,984 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)not published
XS 536 376 71 74.5 115 425 1006
S 550 392 71 74 130 425 1027
M 571 406 71.5 74 150 425 1043
L 595 419 71.5 74 175 425 1064
XL 619 432 71.5 73.5 200 425 1085

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

Seat tube 520 mmHead tube 150 mmTop tube 570 mmDown tubeChainstay 425 mmSeat stayFork 1043 mm stack 571reach 406Head tube top 406 / 571BB 0 / 0

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

not read off the maker's page yet: ridley-bikes.com
Tyre clearance
not recorded yet
Bottom bracket
not recorded yet
Axles and brakes
not recorded yet
UDH
not recorded yet
Seatpost
not recorded yet
Frame weight
not recorded yet

In the maker's words

Kept whole, as I read it off ridley-bikes.com.
Astr RS: Integrated: "Forza Nimbus Pro, 100mm - 360mm (cc shifters) - 400mm (cc drops), Stealth Black" on this build (a one-piece bar and stem; stem length 100mm, width 360 centre to centre at the shifters and 400 in the drops).
Cockpit and seatpost, in the maker's words · 76 words
Astr RS: Integrated: "Forza Nimbus Pro, 100mm - 360mm (cc shifters) - 400mm (cc drops), Stealth Black" on this build (a one-piece bar and stem; stem length 100mm, width 360 centre to centre at the shifters and 400 in the drops). Ridley publishes no separate page or other sizes for it, so no cockpit file was written. Astr: two-piece "4ZA Stratos Pro 400 V1" handlebar and "Forza Stratos Pro, 100 mm, for semi integrated cablerouting" stem.
OFFICIAL SOURCE: Ridley (Belgium) product page for the ASTR RS Force XPLR 1x13 ("combines aero efficiency with a low system weight". Source: html table (official Ridley product page "ASTR RS Force XPLR 1x13 ARS27D3m(M)", lettered geometry table in the page markup; fetched 2026-10-21
How I read the maker's table
size M build), five sizes XS to XL; the Astr page (https://www.ridley-bikes.com/en_GB/bikes/SBIASTRID158, checked 2026-10-21) prints the same table cell for cell. Cells printed as a hyphen, an en dash or empty are recorded as null. Not printed: fork offset, trail, front centre, stock stem and bar per size (null). The J row prints "-" on every size. Model year: not printed (null). Source: html table (official Ridley product page "ASTR RS Force XPLR 1x13 ARS27D3m(M)", lettered geometry table in the page markup; fetched 2026-10-21, HTTP 200)