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Triban GRVL 520

Gravel · 5 sizes

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Bike
Triban GRVL 520 · Gravel · 5 sizes
Geometry
bikeinsights.com, fetched 22 Oct 2026
These numbers are second-hand, from Bike Insights. I have not checked them against the maker's own table. Bike Insights cites decathlon.fr.
Seat angle convention
Calculated from Bike Insights' table
Cockpit
Generic stem and bar, assumed
Solved with
cover 10 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 · 879 bikes, 79 makes, 4,979 sizes in the catalogue

Geometry, every size, from Bike Insights

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 524 385 69.8 75 115 425 1010
S 542 390 70.8 74.5 130 425 1012
M 569 389 71.5 73.5 155 425 1014.5
L 603 395 73 73.5 185 425 1016
XL 633 396 73 73 215 425 1026

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

Seat tube 500 mmHead tube 155 mmTop tube 558 mmDown tubeChainstay 425 mmSeat stayFork 1015 mm stack 569reach 389Head tube top 389 / 569BB 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: decathlon.fr
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

Notes on the cockpit

Kept whole, as I read it off bikeinsights.com.
Not on the Bike Insights page; stock stem and bar are null.
Cockpit and seatpost · 12 words
Not on the Bike Insights page; stock stem and bar are null.
SECOND-HAND NUMBERS: copied from Bike Insights (https://bikeinsights.com/bikes/5fb5bcc8aaac4a0017b483e9-triban-grvl?version=2022&build=520), not read off the maker's own table. Source: aggregator (Bike Insights)
How I read Bike Insights' table
Bike Insights cites the maker's page: https://www.decathlon.fr/p/velo-gravel-triban-grvl-520-homme-subcompact/_/R-p-313015?mc=8587697. The maker no longer publishes this table, so these numbers have not been checked against it; the seed stores this version as an aggregator source and caps its band (D17, D4 second amendment). Build: 520 (650B). Bike Insights files it as Road Bike / Mixed-terrain Road Bike / All-road/Gravel. Trail is left null: Bike Insights computes its own and the maker's is not on the page. Decathlon (decathlon.co.uk and the vanrysel.com product pages that hold no image of this table) answers 403 to fetchers, so the maker's archived page was the first source under the D4 third amendment. Bike Insights names the build "520 (650B)". Not checked against the maker's archived page: web.archive.org blocked this machine on 22 Oct 2026; a later pass should read the capture and upgrade this file to the maker's numbers.