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Bulls Grinder 3 Gravel Bike 28" schwarz

zweirad-stadler:bulls-grinder-3-gravel-bike-herren-28-schwarz · source URL · confidence 0.83

Eligibility

Can win a band.

Size decisions

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

Identity

Canonical configuration: Bulls | Grinder 3 Gravel Bike 28" | GRX
Confidence: medium

• brand exact (Bulls)
• model normalized to "grinder 3 gravel 28"
• groupset family exact (GRX)
• model year unavailable on every listing
• 5 listings across 1 retailer
• downgraded to medium: listings disagree on speeds: 10 vs 12
• conflict: speeds: 10 vs 12

Provenance — why we believe each fact

Warnings

• info single-size-only — Only one size is in stock (47 cm).
• info wheel-material-unknown — Wheel material could not be established.

Score breakdown

{
  "frameScore": 11,
  "drivetrainScore": 18,
  "wheelScore": 5,
  "extrasScore": 0,
  "suspensionScore": 0,
  "weightAdjustment": -3,
  "equipmentValue": 31,
  "notes": [
    "Shimano GRX = 20.",
    "10-speed -2.",
    "Wheels unknown: scored level with basic aluminium, which is neither a reward for omitting the wheelset nor a penalty for naming a cheap one.",
    "Brakes \"hydraulic-disc\" = 0, the baseline for gravel.",
    "12.7 kg vs 10.4 kg gravel reference = -3."
  ],
  "marketPrice": 1517,
  "valueScore": 1.09,
  "savingsVsMarket": 125
}

AI normalization

{
  "requested": [
    "wheelMaterial",
    "wheelTier"
  ],
  "applied": [],
  "rejected": [],
  "notes": "Wheel material is not stated; rims listed as 'Felgen: Bulls DDM-2' which is an unrecognised house model so wheelMaterial and wheelTier cannot be deterministically assigned from the source.",
  "raw": {
    "frameMaterial": {
      "value": "aluminium",
      "evidence": "Material: 6061 Aluminium",
      "confidence": 0.9
    },
    "groupsetBrand": {
      "value": "Shimano",
      "evidence": "Schalthebel: Shimano GRX ST-RX400",
      "confidence": 0.9
    },
    "groupsetFamily": {
      "value": "GRX",
      "evidence": "Schalthebel: Shimano GRX ST-RX400",
      "confidence": 0.9
    },
    "electronicShifting": {
      "value": null,
      "evidence": null,
      "confidence": 0.3
    },
    "speeds": {
      "value": "10",
      "evidence": "2 x 10 (20-Gang)",
      "confidence": 0.9
    },
    "mixedGroupset": {
      "value": "false",
      "evidence": "Schalthebel: Shimano GRX ST-RX400\nSchaltwerk: Shimano GRX RD-RX400\nKurbel: Shimano GRX FCRX600 46/30T",
      "confidence": 0.9
    },
    "wheelMaterial": {
      "value": null,
      "evidence": null,
      "confidence": 0.3
    },
    "wheelTier": {
      "value": null,
      "evidence": "Felgen: Bulls DDM-2",
      "confidence": 0.3
    },
    "brakes": {
      "value": "hydraulic-disc",
      "evidence": "Bremsenart: Hydraulische Scheibenbremsen",
      "confidence": 0.9
    },
    "weightKg": {
      "value": "12.7",
      "evidence": "Gewicht: ca. 12,7 kg",
      "confidence": 0.9
    },
    "powerMeter": {
      "value": null,
      "evidence": null,
      "confidence": 0.3
    },
    "notes": "Wheel material is not stated; rims listed as 'Felgen: Bulls DDM-2' which is an unrecognised house model so wheelMaterial and wheelTier cannot be deterministically assigned from the source."
  }
}

Normalized record

{
  "id": "zweirad-stadler:bulls-grinder-3-gravel-bike-herren-28-schwarz",
  "retailer": "zweirad-stadler",
  "retailerProductId": "bulls-grinder-3-gravel-bike-herren-28-schwarz",
  "productUrl": "https://shop.zweirad-stadler.de/fahrrad-shop/rennraeder/gravel-bike/bulls-grinder-3-gravel-bike-herren-28-schwarz.html",
  "brand": "Bulls",
  "model": "Grinder 3 Gravel Bike 28\" schwarz",
  "modelYear": null,
  "category": "gravel",
  "categoryBasis": "stated",
  "sourceCategory": "gravel",
  "price": 1392,
  "originalPrice": 1699,
  "currency": "EUR",
  "discountPercent": 18,
  "frameMaterial": "aluminium",
  "frameModel": null,
  "frameTier": null,
  "groupsetBrand": "Shimano",
  "groupsetFamily": "GRX",
  "groupsetGeneration": null,
  "electronicShifting": false,
  "speeds": 10,
  "mixedGroupset": false,
  "groupsetComponents": {
    "shifters": "GRX",
    "rearDerailleur": "GRX",
    "frontDerailleur": "GRX",
    "crank": "GRX"
  },
  "groupsetTierSpread": 0,
  "crank": "Shimano GRX FCRX600 46/30T",
  "cassette": "Shimano CS-HG50-10 11-36T",
  "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": "Bulls DDM-2 | Center-Lock, Schnellspanner | Center-Lock, Schnellspanner",
  "wheelMaterial": "unknown",
  "wheelTier": "unknown",
  "tyres": "Schwalbe G-ONE Allround PL Race Guard 40-622 / 28 x 1,5\"",
  "weightKg": 12.7,
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "47 cm",
      "size": "47",
      "sizeCm": 47,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "7-14 Werktage"
    }
  ],
  "seller": null,
  "availability": "limited",
  "gtins": [],
  "imageUrl": "https://shop.zweirad-stadler.de/out/pictures/generated/product/1/1500_1500_100/bulls-28-grinder3-gravelbike-schwarz-2023-99248a.jpg",
  "rawTitle": "Bulls Grinder 3 Gravel Bike 28\" schwarz",
  "fetchedAt": "2026-09-19T06:31:46.942Z",
  "normalizationConfidence": 0.83,
  "warnings": [
    {
      "code": "single-size-only",
      "message": "Only one size is in stock (47 cm).",
      "severity": "info"
    },
    {
      "code": "wheel-material-unknown",
      "message": "Wheel material could not be established.",
      "severity": "info"
    }
  ]
}

Parsed specification table

{
  "Material": "6061 Aluminium",
  "Rahmenform": "Gravel",
  "Gabel": "Grinder Aluminium",
  "Gänge": "20-Gang",
  "Schaltung": "Kettenschaltung",
  "Schalthebel": "Shimano GRX ST-RX400",
  "Schaltwerk": "Shimano GRX RD-RX400",
  "Umwerfer": "Shimano GRX FD-RX400",
  "Bremshebel": "Shimano GRX ST-RX400",
  "Bremsenart": "Hydraulische Scheibenbremsen",
  "Kette": "Shimano CS-HG54-10",
  "Kassette": "Shimano CS-HG50-10 11-36T",
  "Kurbel": "Shimano GRX FCRX600 46/30T",
  "Felgen": "Bulls DDM-2",
  "Laufradgröße": "28\"",
  "Reifen": "Schwalbe G-ONE Allround PL Race Guard 40-622 / 28 x 1,5\"",
  "Nabe vorne": "Center-Lock, Schnellspanner",
  "Nabe hinten": "Center-Lock, Schnellspanner",
  "Sattel": "Bulls Gravel",
  "Sattelstütze": "Bulls Aluminium",
  "Sattelstütze Art": "Patent Sattelstütze",
  "Lenker": "Bulls Gravel S",
  "Griffe": "Comfortgriptape 3 mm",
  "Gewicht": "ca. 12,7 kg",
  "zul. Gesamtgewicht": "125 kg",
  "Bremsen": "Shimano GRX BR-RX400"
}

Raw adapter output

{
  "retailer": "zweirad-stadler",
  "retailerProductId": "bulls-grinder-3-gravel-bike-herren-28-schwarz",
  "productUrl": "https://shop.zweirad-stadler.de/fahrrad-shop/rennraeder/gravel-bike/bulls-grinder-3-gravel-bike-herren-28-schwarz.html",
  "extractionMethod": "server-html",
  "sourceCategory": "gravel",
  "rawTitle": "Bulls Grinder 3 Gravel Bike 28\" schwarz",
  "rawBrand": "Bulls",
  "price": 1392,
  "originalPrice": 1699,
  "currency": "EUR",
  "imageUrl": "https://shop.zweirad-stadler.de/out/pictures/generated/product/1/1500_1500_100/bulls-28-grinder3-gravelbike-schwarz-2023-99248a.jpg",
  "rawSpecifications": {
    "Material": "6061 Aluminium",
    "Rahmenform": "Gravel",
    "Gabel": "Grinder Aluminium",
    "Gänge": "20-Gang",
    "Schaltung": "Kettenschaltung",
    "Schalthebel": "Shimano GRX ST-RX400",
    "Schaltwerk": "Shimano GRX RD-RX400",
    "Umwerfer": "Shimano GRX FD-RX400",
    "Bremshebel": "Shimano GRX ST-RX400",
    "Bremsenart": "Hydraulische Scheibenbremsen",
    "Kette": "Shimano CS-HG54-10",
    "Kassette": "Shimano CS-HG50-10 11-36T",
    "Kurbel": "Shimano GRX FCRX600 46/30T",
    "Felgen": "Bulls DDM-2",
    "Laufradgröße": "28\"",
    "Reifen": "Schwalbe G-ONE Allround PL Race Guard 40-622 / 28 x 1,5\"",
    "Nabe vorne": "Center-Lock, Schnellspanner",
    "Nabe hinten": "Center-Lock, Schnellspanner",
    "Sattel": "Bulls Gravel",
    "Sattelstütze": "Bulls Aluminium",
    "Sattelstütze Art": "Patent Sattelstütze",
    "Lenker": "Bulls Gravel S",
    "Griffe": "Comfortgriptape 3 mm",
    "Gewicht": "ca. 12,7 kg",
    "zul. Gesamtgewicht": "125 kg",
    "Bremsen": "Shimano GRX BR-RX400"
  },
  "rawFeatures": [
    "0% Finanzierung ab 139,19 € möglich",
    "Dienstrad-Leasing möglich",
    "14 Tage kostenloses Rückgaberecht",
    "Fahrrad vollständig montiert und mit wenigen Handgriffen fahrbereit",
    "Für Gravelbikes optimierte Shimano GRX 2 x 10 (20-Gang) Kettenschaltung",
    "Shimano GRX BR-RX400 hydraulische Scheibenbremsen",
    "Farblich gut abgestimmtes, modernes und elegantes Design",
    "Schwalbe G-One Raceguard Gravel-Reifen mit braunen Außenflanken",
    "Aufgrund von Engpässen und Verzögerungen in den weltweiten Lieferketten kann es vorkommen, dass der Hersteller vereinzelt Komponenten der Originalspezifikationen durch mindestens gleichwertige oder sogar höherwertige Bauteile ersetzt hat. Das gelieferte Fahrrad kann in Einzelfällen von den Abbildungen abweichen.",
    "Die G-One Reifen haben ein Breite von 40 Millimetern und sind mit einem Profil ausgestattet, dass sich ideal für Graveler eignet, da es gute Rolleigenschaften auf Asphalt aufweist, aber auch einen guten Grip im Gelände gewährleistet. Aufgrund der hellbraunen Außenflanken sind die Reifen auch ein optisches Highlight."
  ],
  "rawSizes": [
    {
      "rawSize": "47 cm",
      "size": "47",
      "sizeCm": 47,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "7-14 Werktage"
    }
  ],
  "availabilityText": "1 of 1 sizes orderable",
  "fetchedAt": "2026-09-19T06:31:46.942Z",
  "sourceMeta": {
    "savingBadge": "307 € gespartauf UVP",
    "deliveryWindows": [
      "47 cm 7-14 Werktage"
    ]
  }
}

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