Cannondale TOPSTONE 1 - Shimano GRX - Gravelbike - 2026 - obsidian

bike24:904627 · source URL · confidence 1 · GTIN 0196870277410, 0196870277427, 0196870277434, 0196870277441 +1

Eligibility

Can win a band.

Size decisions

retailer label	alpha	comparable cm	match	mapping	in stock	variant price	evidence
XS	XS	—	unknown	unsupported	yes	listing price	—
S	S	—	unknown	unsupported	yes	listing price	—
M	M	—	unknown	unsupported	yes	listing price	—
L	L	—	unknown	unsupported	yes	listing price	—

retailer label

alpha

comparable cm

match

mapping

in stock

variant price

evidence

—

unknown

unsupported

yes

listing price

—

unknown

unsupported

yes

listing price

—

unknown

unsupported

yes

listing price

—

unknown

unsupported

yes

listing price

—

mapping	unsupported
reason	Cannondale publishes no defensible conventional equivalence for its letter sizes. Cannondale's Topstone dual label is a seat tube: XS=41 S=46 M=51 L=55 XL=60, a 5 cm step per letter against the conventional scale's 2-2.5 cm, and XS sits 8.5 cm below where the market puts an XS. The harvester rejects the pooled ladder for the same reason (implausible-step); this records the verdict so the stated centimetres are actively discarded rather than merely left unmapped.

mapping

unsupported

reason

Cannondale publishes no defensible conventional equivalence for its letter sizes. Cannondale's Topstone dual label is a seat tube: XS=41 S=46 M=51 L=55 XL=60, a 5 cm step per letter against the conventional scale's 2-2.5 cm, and XS sits 8.5 cm below where the market puts an XS. The harvester rejects the pooled ladder for the same reason (implausible-step); this records the verdict so the stated centimetres are actively discarded rather than merely left unmapped.

A shopper asking for: 54 → nothing compatible · 56 → nothing compatible · 58 → nothing compatible · 60 → nothing compatible

Identity

Canonical configuration: Cannondale | TOPSTONE 1 | GRX | 2026
Confidence: high

brand exact (Cannondale)
model normalized to "topstone 1"
groupset family exact (GRX)
GTIN match (0196870277410, 0196870277427, 0196870277434, +2 more)
listings state different model years (2025, 2026); the shared manufacturer barcode says they are one SKU and is trusted over the year fields
10 listings across 8 retailers

retailer	price	sizes in stock
BIKER-BOARDER	€1.499	M // 50.5 cm	debug
Bike-Mailorder	€1.519,05	XS, S, L	debug
BIKE24	€1.699	XS, S, M, L	debug
Bike-Mailorder	€1.771,58	none	debug
fahrrad.de	€1.849	XS, S, M, L, XL	debug
B.O.C.	€1.949,99	XS, S, M, L, XL	debug
BikeExchange	€1.999	XS, S, M, L, XL	debug
bikes.de	€1.999	SM \| (28")	debug
Fahrrad XXL	€2.149,99	XS	debug
Bike-Mailorder	€2.399	none	debug

retailer

price

sizes in stock

BIKER-BOARDER

€1.499

M // 50.5 cm

debug

Bike-Mailorder

€1.519,05

XS, S, L

debug

BIKE24

€1.699

XS, S, M, L

debug

Bike-Mailorder

€1.771,58

none

debug

fahrrad.de

€1.849

XS, S, M, L, XL

debug

B.O.C.

€1.949,99

XS, S, M, L, XL

debug

BikeExchange

€1.999

XS, S, M, L, XL

debug

bikes.de

€1.999

SM | (28")

debug

Fahrrad XXL

€2.149,99

debug

Bike-Mailorder

€2.399

none

debug

Provenance — why we believe each fact

field source evidence

brand retailer:bike24 / parse Cannondale

model retailer:bike24 / derived Cannondale TOPSTONE 1 - Shimano GRX - Gravelbike - 2026 - obsidian

modelYear retailer:bike24 / parse Modelljahr: 2026

category retailer:bike24 / parse TOPSTONE

frameMaterial retailer:bike24 / parse SmartForm

groupsetFamily retailer:bike24 / dictionary Shimano GRX 600 || Shimano GRX 820 Shadow RD+ || Shimano GRX FD820

electronicShifting retailer:bike24 / parse Mechanisch

speeds retailer:bike24 / parse 2 x 12

brakes retailer:bike24 / parse Hydraulisch

suspension retailer:bike24 / derived no suspension fork and no rear shock on a drop-bar listing

fork retailer:bike24 / dictionary Topstone Carbon

dropperPost retailer:bike24 / derived seatpost row says "starr"

beltDrive retailer:bike24 / parse Shimano GRX FD820

wheelSize retailer:bike24 / parse 28

wheelMaterial retailer:bike24 / dictionary WTB ST i23

wheelTier retailer:bike24 / dictionary WTB ST i23

powerMeter retailer:bike24 / derived absent from a 47-field spec table

availability retailer:bike24 / derived https://schema.org/InStock

field	source	evidence
brand	`retailer:bike24` / parse	Cannondale
model	`retailer:bike24` / derived	Cannondale TOPSTONE 1 - Shimano GRX - Gravelbike - 2026 - obsidian
modelYear	`retailer:bike24` / parse	Modelljahr: 2026
category	`retailer:bike24` / parse	TOPSTONE
frameMaterial	`retailer:bike24` / parse	SmartForm
groupsetFamily	`retailer:bike24` / dictionary	Shimano GRX 600 \|\| Shimano GRX 820 Shadow RD+ \|\| Shimano GRX FD820
electronicShifting	`retailer:bike24` / parse	Mechanisch
speeds	`retailer:bike24` / parse	2 x 12
brakes	`retailer:bike24` / parse	Hydraulisch
suspension	`retailer:bike24` / derived	no suspension fork and no rear shock on a drop-bar listing
fork	`retailer:bike24` / dictionary	Topstone Carbon
dropperPost	`retailer:bike24` / derived	seatpost row says "starr"
beltDrive	`retailer:bike24` / parse	Shimano GRX FD820
wheelSize	`retailer:bike24` / parse	28
wheelMaterial	`retailer:bike24` / dictionary	WTB ST i23
wheelTier	`retailer:bike24` / dictionary	WTB ST i23
powerMeter	`retailer:bike24` / derived	absent from a 47-field spec table
availability	`retailer:bike24` / derived	https://schema.org/InStock

Warnings

none

Score breakdown

{
  "frameScore": 11,
  "drivetrainScore": 20,
  "wheelScore": 5,
  "extrasScore": 0,
  "suspensionScore": 0,
  "weightAdjustment": 0,
  "equipmentValue": 36,
  "notes": [
    "Shimano GRX = 20.",
    "Wheels \"basic-aluminium\" = 5.",
    "Brakes \"hydraulic-disc\" = 0, the baseline for gravel.",
    "Weight not published: no weight adjustment either way."
  ],
  "marketPrice": 1779,
  "valueScore": 1.047,
  "savingsVsMarket": 80
}

AI normalization

Not used: deterministic parsing resolved every field it needed.

Normalized record

{
  "id": "bike24:904627",
  "retailer": "bike24",
  "retailerProductId": "904627",
  "productUrl": "https://www.bike24.de/p1904627.html",
  "brand": "Cannondale",
  "model": "TOPSTONE 1",
  "modelYear": 2026,
  "category": "gravel",
  "categoryBasis": "stated",
  "sourceCategory": "gravel",
  "price": 1699,
  "originalPrice": 2399,
  "currency": "EUR",
  "discountPercent": 29,
  "frameMaterial": "aluminium",
  "frameModel": "SmartForm C2 Alloy",
  "frameTier": null,
  "groupsetBrand": "Shimano",
  "groupsetFamily": "GRX",
  "groupsetGeneration": null,
  "electronicShifting": false,
  "speeds": 12,
  "mixedGroupset": false,
  "groupsetComponents": {
    "shifters": "GRX",
    "rearDerailleur": "GRX",
    "frontDerailleur": "GRX",
    "crank": "GRX",
    "cassette": "105"
  },
  "groupsetTierSpread": 0,
  "crank": "Shimano GRX 600",
  "cassette": "Shimano HG R7100",
  "brakes": "hydraulic-disc",
  "brakePistons": null,
  "brakeTier": "unknown",
  "suspension": "none",
  "fork": {
    "make": null,
    "line": null,
    "tier": "rigid",
    "travelMm": 0
  },
  "rearShock": null,
  "dropperPost": false,
  "beltDrive": false,
  "hubDynamo": null,
  "rack": null,
  "mudguards": null,
  "chaincase": null,
  "kickstand": null,
  "lighting": null,
  "wheelSize": "28",
  "wheelset": "WTB ST i23 TCS | Formula",
  "wheelMaterial": "aluminium",
  "wheelTier": "basic-aluminium",
  "tyres": "WTB Riddler TCS Light | 700x37c",
  "weightKg": null,
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "XS",
      "size": "XS",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 7,
      "price": null
    },
    {
      "rawSize": "S",
      "size": "S",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 2,
      "price": null
    },
    {
      "rawSize": "M",
      "size": "M",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 6,
      "price": null
    },
    {
      "rawSize": "L",
      "size": "L",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 1,
      "price": null
    }
  ],
  "seller": null,
  "availability": "in-stock",
  "gtins": [
    "0196870277410",
    "0196870277427",
    "0196870277434",
    "0196870277441",
    "0196870277458"
  ],
  "imageUrl": "https://images.bike24.com/media/510/i/mb/98/53/73/topstone-1-obsidian-1-1804871.jpg",
  "rawTitle": "Cannondale TOPSTONE 1 - Shimano GRX - Gravelbike - 2026 - obsidian",
  "fetchedAt": "2026-09-19T05:09:03.514Z",
  "normalizationConfidence": 1,
  "warnings": []
}

Parsed specification table

{
  "Produktname": "Cannondale TOPSTONE 1 - Shimano GRX - Gravelbike - 2026 - obsidian",
  "Hersteller": "Cannondale Bikes",
  "Artikelnummer": "CAD715488",
  "Aktivität": "Radfahren",
  "Geschlecht": "Herren",
  "Material": "Aluminium",
  "Radsport Einsatzbereich": "Allroad / Gravel",
  "Naben": "Formula",
  "Speichen": "Stainless Steel | 14g",
  "Felgen": "WTB ST i23 TCS",
  "Kette": "Shimano HG M7100",
  "Kassette": "Shimano HG R7100",
  "Schalthebel": "Shimano GRX 600",
  "Schaltwerk": "Shimano GRX 820 Shadow RD+",
  "Umwerfer": "Shimano GRX FD820",
  "Innenlager": "Shimano BSA 68mm",
  "Kettenblatt Abstufung": "46-30",
  "Kurbel": "Shimano GRX 600",
  "Bremsen": "Shimano GRX 400 | 160/160mm",
  "Sattelstütze Modell": "Cannondale 3",
  "Sattel": "Fizik Aliante Delta",
  "Lenkerband": "Cannondale Bar Tape | 3.5mm",
  "Lenker": "Cannondale 3 | 16° flare drop",
  "Vorbau": "Cannondale 3 | 31.8mm | 7°",
  "Gabel": "Topstone Carbon",
  "Steuersatz": "Integrated",
  "Rahmen": "SmartForm C2 Alloy",
  "Schaltsystem (Hersteller)": "Shimano",
  "Abstufung Kassette": "11-34",
  "Schaltungsart": "Kette - Mechanisch",
  "Art der Bremse": "Scheibenbremse",
  "Laufradgröße": "28\" (622mm)",
  "Sattelstütze": "Sattelstütze starr",
  "Hinterbau": "Ungefedert",
  "Reifen": "WTB Riddler TCS Light | 700x37c",
  "Maximale Reifenbreite": "45mm",
  "Bremsbetätigung": "Hydraulisch",
  "Modelljahr": "2026",
  "Farbe": "Schwarz, Braun",
  "Gabel Bauart": "Starrgabel",
  "Herstellerartikelnummer": "C15395U10",
  "Zugverlegung": "intern",
  "Produktserie": "Cannondale - Topstone",
  "Schaltstufen": "2 x 12",
  "Rahmenform": "Diamant",
  "GTIN": "196870277410, 196870277427, 196870277434, 196870277441, 196870277458",
  "Herstellerseite": "http://www.cannondale.com/eur_de"
}

Raw adapter output

{
  "retailer": "bike24",
  "retailerProductId": "904627",
  "productUrl": "https://www.bike24.de/p1904627.html",
  "extractionMethod": "embedded-json",
  "sourceCategory": "gravel",
  "rawTitle": "Cannondale TOPSTONE 1 - Shimano GRX - Gravelbike - 2026 - obsidian",
  "rawBrand": "Cannondale",
  "price": 1699,
  "originalPrice": 2399,
  "currency": "EUR",
  "imageUrl": "https://images.bike24.com/media/510/i/mb/98/53/73/topstone-1-obsidian-1-1804871.jpg",
  "rawSpecifications": {
    "Produktname": "Cannondale TOPSTONE 1 - Shimano GRX - Gravelbike - 2026 - obsidian",
    "Hersteller": "Cannondale Bikes",
    "Artikelnummer": "CAD715488",
    "Aktivität": "Radfahren",
    "Geschlecht": "Herren",
    "Material": "Aluminium",
    "Radsport Einsatzbereich": "Allroad / Gravel",
    "Naben": "Formula",
    "Speichen": "Stainless Steel | 14g",
    "Felgen": "WTB ST i23 TCS",
    "Kette": "Shimano HG M7100",
    "Kassette": "Shimano HG R7100",
    "Schalthebel": "Shimano GRX 600",
    "Schaltwerk": "Shimano GRX 820 Shadow RD+",
    "Umwerfer": "Shimano GRX FD820",
    "Innenlager": "Shimano BSA 68mm",
    "Kettenblatt Abstufung": "46-30",
    "Kurbel": "Shimano GRX 600",
    "Bremsen": "Shimano GRX 400 | 160/160mm",
    "Sattelstütze Modell": "Cannondale 3",
    "Sattel": "Fizik Aliante Delta",
    "Lenkerband": "Cannondale Bar Tape | 3.5mm",
    "Lenker": "Cannondale 3 | 16° flare drop",
    "Vorbau": "Cannondale 3 | 31.8mm | 7°",
    "Gabel": "Topstone Carbon",
    "Steuersatz": "Integrated",
    "Rahmen": "SmartForm C2 Alloy",
    "Schaltsystem (Hersteller)": "Shimano",
    "Abstufung Kassette": "11-34",
    "Schaltungsart": "Kette - Mechanisch",
    "Art der Bremse": "Scheibenbremse",
    "Laufradgröße": "28\" (622mm)",
    "Sattelstütze": "Sattelstütze starr",
    "Hinterbau": "Ungefedert",
    "Reifen": "WTB Riddler TCS Light | 700x37c",
    "Maximale Reifenbreite": "45mm",
    "Bremsbetätigung": "Hydraulisch",
    "Modelljahr": "2026",
    "Farbe": "Schwarz, Braun",
    "Gabel Bauart": "Starrgabel",
    "Herstellerartikelnummer": "C15395U10",
    "Zugverlegung": "intern",
    "Produktserie": "Cannondale - Topstone",
    "Schaltstufen": "2 x 12",
    "Rahmenform": "Diamant",
    "GTIN": "196870277410, 196870277427, 196870277434, 196870277441, 196870277458",
    "Herstellerseite": "http://www.cannondale.com/eur_de"
  },
  "rawFeatures": [],
  "rawSizes": [
    {
      "rawSize": "XS",
      "size": "XS",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 7,
      "price": null
    },
    {
      "rawSize": "S",
      "size": "S",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 2,
      "price": null
    },
    {
      "rawSize": "M",
      "size": "M",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 6,
      "price": null
    },
    {
      "rawSize": "L",
      "size": "L",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 1,
      "price": null
    }
  ],
  "availabilityText": "https://schema.org/InStock",
  "fetchedAt": "2026-09-19T05:09:03.514Z",
  "sourceMeta": {
    "skus": [
      "196870277410",
      "196870277427",
      "196870277434",
      "196870277441",
      "196870277458"
    ],
    "startingPrice": false,
    "discountInPercent": 29,
    "articleNumber": "CAD715488"
  }
}

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