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Ridley Helium Disc

Road · 6 sizes

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Bike
Ridley Helium Disc · Road · 6 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
XXS 507 379 71.8 75 110 405 970
XS 527 374 72 74 130 405 970
S 542 384 73 73.5 145 405 977
M 573 390 73.5 73 175 405 987
L 599 396 73.5 72.5 205 408 1005
XL 624 403 74 72.5 230 408 1014

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

Seat tube 540 mmHead tube 175 mmTop tube 565 mmDown tubeChainstay 405 mmSeat stayFork 987 mm stack 573reach 390Head tube top 390 / 573BB 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.
Two-piece: "DEDA Zero2, 420mm (cc), Black-on-Black" handlebar and "Deda Super Box, 110 mm, Polish On Black" stem on this build.
Cockpit and seatpost, in the maker's words · 20 words
Two-piece: "DEDA Zero2, 420mm (cc), Black-on-Black" handlebar and "Deda Super Box, 110 mm, Polish On Black" stem on this build.
OFFICIAL SOURCE: Ridley (Belgium) product page for the Helium Disc 105 2x11 (size M build), six sizes XXS to XL. Source: html table (official Ridley product page "Helium Disc 105 2x11 HED02Bs(M)", lettered geometry table in the page markup; fetched 2026-10-21
How I read the maker's table
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). Reach falls from XXS (379) to XS (374), and XXS and XS share a 970 mm wheelbase, as printed. Model year: not printed (null). Source: html table (official Ridley product page "Helium Disc 105 2x11 HED02Bs(M)", lettered geometry table in the page markup; fetched 2026-10-21, HTTP 200)