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Dolan GXC

Gravel · 5 sizes

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Bike
Dolan GXC · Gravel · 5 sizes
Geometry
dolan-bikes.com, fetched 20 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)not published Wheelbase (mm)not published Standover (mm)not published
Extra Small 536 366 70.5 74.5 105
Small 556 375 71 74 125
Medium 572 384 71.5 73.5 140
Large 588 393 72 73.5 155
Extra Large 603 402 72 73.5 170

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

Seat tube 520 mmHead tube 140 mmTop tube 553 mmDown tubeChainstay 410 mm (estimated)Seat stay (estimated)Fork (estimated) stack 572reach 384Head tube top 384 / 572BB 0 / 0

The Medium 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. A dashed tube is a number the maker left out (est.).

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: dolan-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 dolan-bikes.com.
Two-piece bar and stem, chosen in the build configurator.
Cockpit and seatpost, in the maker's words · 146 words
Two-piece bar and stem, chosen in the build configurator. The page's sizing guide, written per rider size and separate from the geometry table, reads: "X-Small | 5'2" - 5'5" - 157.5-167.5cm | Crank Length: 170mm | Stem: 8cm | Bar Width: 40cm | Small | 5'4" - 5'8" - 162-172.5cm | Crank Length: 172.5mm | Stem: 9cm | Bar Width: 42cm | Medium | 5'8" - 5'11" - 172.5-180cm | Crank Length: 172.5mm | Stem: 10cm | Bar Width: 44cm | Large | 5'10" - 6'2" - 177.5-187.5cm | Crank Length: 172.5mm | Stem: 11cm | Bar Width: 44cm | X Large | 6'1" - 6'4" - 185-192.5cm | Crank Length: 175mm | Stem: 12cm | Bar Width: 46cm". Because the guide is not a row of the geometry table, stock_stem_length and stock_bar_width are left null rather than paired with the table's sizes by the collector.
OFFICIAL SOURCE: Dolan Bikes (Preston, UK, maker and seller of its own frames) product page, GXC carbon gravel, five sizes Extra Small to Extra Large. Source: html table (official Dolan Bikes product page "GXC", "Sizing & Geometry" table in the page markup; fetched 2026-10-20
How I read the maker's table
the GXC-Road page (https://www.dolan-bikes.com/gxc-rd/, checked 2026-10-20) prints the same table cell for cell. The "Sizing & Geometry" HTML table prints, by letter: A Head Angle, B Head Tube Length (mm), C Effective Top Tube Horizontal (mm), D Seat Angle, E Seat Tube Length Center To Top (mm), F Stack (mm), G Reach (mm). Not printed, so null: chainstay, wheelbase, BB drop, fork offset, front centre, standover, trail. Model year: not printed (null). Source: html table (official Dolan Bikes product page "GXC", "Sizing & Geometry" table in the page markup; fetched 2026-10-20, HTTP 200)