Cinelli King Zydeco GRX Gearing: Separate the 2025 2x and 1x Builds
Cinelli King Zydeco GRX gearing needs a build heading as well as a family name. The 2025 catalogue's GRX 820 two-by column pairs 48/31-tooth rings with an 11–36 cassette. Its GRX 610 one-by column uses a 42-tooth ring and a 10–45 cassette. They are distinct published assemblies, not interchangeable descriptions of one bicycle.
Cinelli King Zydeco GRX gearing has separate component lists
The GRX 820 two-by record names RX820 shifters, front and rear derailleurs, and a Shimano M7100 chain. Its crankset is RX820 and its cassette HG710. Retaining these identifiers makes the table more useful than an advertisement abbreviated to GRX.
The GRX 610 one-by column instead names RX610 controls, an RX610-1 crank and RX822 rear derailleur, with an M7100 cassette. There is no front derailleur in that column. A one-by and a two-by build therefore differ in more than the number of visible chainrings.
Keep a published compatibility conflict visible
The 2025 frame table says gravel drivetrains only: GRX, SRAM Wide and Ekar. A separate manufacturer feed record captured in October 2026 describes compatibility with compact and mid-compact cranksets and standard road front derailleurs. These statements have different wording and dates; their applicability to a specific offered build has not been reconciled.
Do not choose the broader wording simply because it accommodates a planned conversion. Ask Cinelli which technical document governs the identified frame and proposed parts. The disagreement is preserved here as an identification issue, without approving a replacement crank, front derailleur or chainline.
Verify the offered build before comparing ratios
The catalogue listing is Cinelli KING ZYDECO 2 - GRX 2X12 Bike — DIRTY BLUES. Its title identifies a two-by-twelve offering, but does not independently confirm every 2025 component in the differently coloured catalogue examples. Request the supplied crank, cassette and derailleur references.
Those references establish what is being compared; they do not predict a rider's climbing speed or an appropriate terrain limit. The Cinelli topic connects related equipment questions, and the brand introduction explains the broader gravel range.
Gearing FAQ
What rings are listed for GRX 820 two-by?
The 2025 assembly column lists an RX820 crankset with 48/31-tooth rings and an 11–36 HG710 cassette.
Is the one-by column the same transmission?
No. It lists a 42-tooth single ring, 10–45 cassette and RX822 rear derailleur.
Does the feed resolve road-derailleur compatibility?
No. Its broader wording conflicts with the dated gravel-only table; obtain model-specific clarification.
Source: Cinelli 2025 catalogue, pages 32–33 and 36–37 (https://www.velofollies.be/Media/ExhibitorGate/exhibitors/638688435635364196.pdf).
Historical feed: manufacturer record captured 23 October 2026 (https://cinelli-milano.com/products.json?limit=250&page=2).
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