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Bulls Racer Street Mountainbike ATB Hardtail grau

zweirad-stadler:bulls-racer-street-mountainbike-atb-hardtail-grau-kaufen · source URL · confidence 0.58

Eligibility

Cannot win: confidence 0.58 below 0.75

Size decisions

A shopper asking for: 54 → XL = 53 cm | 29" in stock · 56 → nothing compatible · 58 → nothing compatible · 60 → nothing compatible

Identity

Canonical configuration: Bulls | Racer Street Mountainbike ATB Hardtail
Confidence: medium

• brand exact (Bulls)
• model normalized to "racer street mountainbike atb hardtail"
• groupset family unidentified on every listing
• model year unavailable on every listing
• 4 listings across 1 retailer
• downgraded to medium: no shared GTIN, and no listing states a model year

Provenance — why we believe each fact

Warnings

• high incomplete-build — Detailed spec table with no drivetrain component listed.
• high groupset-unknown — Groupset could not be established.
• info wheel-material-unknown — Wheel material could not be established.

Score breakdown

{
  "frameScore": 11,
  "drivetrainScore": 0,
  "wheelScore": 5,
  "extrasScore": -2,
  "suspensionScore": 0,
  "weightAdjustment": 0,
  "equipmentValue": 14,
  "notes": [
    "Groupset not identified: 0 drivetrain points.",
    "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 \"mechanical-disc\" -2.",
    "Weight not published: no weight adjustment either way.",
    "Fork series not stated: scored at the bottom of the fork ladder rather than assumed."
  ],
  "marketPrice": 510,
  "valueScore": 0.786,
  "savingsVsMarket": -139
}

AI normalization

{
  "requested": [
    "groupsetFamily",
    "wheelMaterial",
    "wheelTier",
    "weightKg"
  ],
  "applied": [],
  "rejected": [],
  "notes": "groupsetFamily not named (source lists only 'Umwerfer: Shimano' and 'Bremshebel: Shimano'); electronic shifting not explicitly stated as absent or present; mixedGroupset cannot be determined because full drivetrain component families/crankset are not listed; wheel material and tier cannot be determined from 'Felgen: DDM-1' (house/unknown model) and tyre brand; weight not provided; power meter not mentioned.",
  "raw": {
    "frameMaterial": {
      "value": "aluminium",
      "evidence": "Material: Aluminium",
      "confidence": 0.95
    },
    "groupsetBrand": {
      "value": "Shimano",
      "evidence": "Umwerfer: Shimano",
      "confidence": 0.9
    },
    "groupsetFamily": {
      "value": null,
      "evidence": null,
      "confidence": 0
    },
    "electronicShifting": {
      "value": null,
      "evidence": null,
      "confidence": 0
    },
    "speeds": {
      "value": "24",
      "evidence": "Gänge: 24-Gang",
      "confidence": 0.95
    },
    "mixedGroupset": {
      "value": null,
      "evidence": null,
      "confidence": 0
    },
    "wheelMaterial": {
      "value": null,
      "evidence": null,
      "confidence": 0
    },
    "wheelTier": {
      "value": null,
      "evidence": null,
      "confidence": 0
    },
    "brakes": {
      "value": "mechanical-disc",
      "evidence": "Bremsenart: Mechanische Scheibenbremsen",
      "confidence": 0.95
    },
    "weightKg": {
      "value": null,
      "evidence": null,
      "confidence": 0
    },
    "powerMeter": {
      "value": null,
      "evidence": null,
      "confidence": 0
    },
    "notes": "groupsetFamily not named (source lists only 'Umwerfer: Shimano' and 'Bremshebel: Shimano'); electronic shifting not explicitly stated as absent or present; mixedGroupset cannot be determined because full drivetrain component families/crankset are not listed; wheel material and tier cannot be determined from 'Felgen: DDM-1' (house/unknown model) and tyre brand; weight not provided; power meter not mentioned."
  }
}

Normalized record

{
  "id": "zweirad-stadler:bulls-racer-street-mountainbike-atb-hardtail-grau-kaufen",
  "retailer": "zweirad-stadler",
  "retailerProductId": "bulls-racer-street-mountainbike-atb-hardtail-grau-kaufen",
  "productUrl": "https://shop.zweirad-stadler.de/fahrrad-shop/mountainbikes/mtb-strassentauglich/bulls-racer-street-mountainbike-atb-hardtail-grau-kaufen.html",
  "brand": "Bulls",
  "model": "Racer Street Mountainbike ATB Hardtail grau",
  "modelYear": null,
  "category": "mtb",
  "categoryBasis": "stated",
  "sourceCategory": "mtb",
  "price": 649,
  "originalPrice": 849,
  "currency": "EUR",
  "discountPercent": 24,
  "frameMaterial": "aluminium",
  "frameModel": null,
  "frameTier": null,
  "groupsetBrand": null,
  "groupsetFamily": null,
  "groupsetGeneration": null,
  "electronicShifting": null,
  "speeds": null,
  "mixedGroupset": null,
  "groupsetComponents": null,
  "groupsetTierSpread": 0,
  "crank": null,
  "cassette": null,
  "brakes": "mechanical-disc",
  "brakePistons": null,
  "brakeTier": "unknown",
  "suspension": "front",
  "fork": {
    "make": "SR Suntour",
    "line": null,
    "tier": "unknown",
    "travelMm": null
  },
  "rearShock": null,
  "dropperPost": false,
  "beltDrive": false,
  "hubDynamo": null,
  "rack": null,
  "mudguards": null,
  "chaincase": null,
  "kickstand": null,
  "lighting": null,
  "wheelSize": null,
  "wheelset": "DDM-1 | Shimano | Formula",
  "wheelMaterial": "unknown",
  "wheelTier": "unknown",
  "tyres": "Kenda",
  "weightKg": null,
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "XXS = 32 cm | 26\"",
      "size": "XXS",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "4-8 Werktage"
    },
    {
      "rawSize": "XS = 37 cm | 27.5\"",
      "size": "XS",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "4-8 Werktage"
    },
    {
      "rawSize": "S = 40 cm | 27.5\"",
      "size": "S",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "4-8 Werktage"
    },
    {
      "rawSize": "M = 44 cm | 29\"",
      "size": "M",
      "sizeCm": 44,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "4-8 Werktage"
    },
    {
      "rawSize": "L = 49 cm | 29\"",
      "size": "L",
      "sizeCm": 49,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "4-8 Werktage"
    },
    {
      "rawSize": "XL = 53 cm | 29\"",
      "size": "XL",
      "sizeCm": 53,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "4-8 Werktage"
    }
  ],
  "seller": null,
  "availability": "in-stock",
  "gtins": [],
  "imageUrl": "https://shop.zweirad-stadler.de/out/pictures/generated/product/1/1500_1500_100/bulls-27-5-racer-street-mountainbike-atb-grau-134557-b.jpg",
  "rawTitle": "Bulls Racer Street Mountainbike ATB Hardtail grau",
  "fetchedAt": "2026-09-19T06:32:29.533Z",
  "normalizationConfidence": 0.58,
  "warnings": [
    {
      "code": "incomplete-build",
      "message": "Detailed spec table with no drivetrain component listed.",
      "severity": "high"
    },
    {
      "code": "groupset-unknown",
      "message": "Groupset could not be established.",
      "severity": "high"
    },
    {
      "code": "wheel-material-unknown",
      "message": "Wheel material could not be established.",
      "severity": "info"
    }
  ]
}

Parsed specification table

{
  "Material": "Aluminium",
  "Farbe": "grau",
  "Gabel": "Suntour",
  "Steuersatz": "Aluminium",
  "Gänge": "24-Gang",
  "Umwerfer": "Shimano",
  "Bremsenart": "Mechanische Scheibenbremsen",
  "Bremsen": "Tektro",
  "Bremshebel": "Shimano",
  "Bremsscheiben": "160 mm / 160 mm",
  "Pedale": "Wellgo",
  "Kette": "KMC",
  "Lenker": "Aluminium",
  "Griffe": "Velo",
  "Vorbau": "Aluminium",
  "Sattelstütze Art": "Patent",
  "Sattelstütze": "Aluminium",
  "Sattel": "Selle Royal",
  "Felgen": "DDM-1",
  "Reifen": "Kenda",
  "Nabe vorne": "Shimano",
  "Nabe hinten": "Formula",
  "Akku Hersteller": "schwarz-blau",
  "Rahmenform": "Jugendfahrrad",
  "Herstellerfarbe": "pebble grey matt"
}

Raw adapter output

{
  "retailer": "zweirad-stadler",
  "retailerProductId": "bulls-racer-street-mountainbike-atb-hardtail-grau-kaufen",
  "productUrl": "https://shop.zweirad-stadler.de/fahrrad-shop/mountainbikes/mtb-strassentauglich/bulls-racer-street-mountainbike-atb-hardtail-grau-kaufen.html",
  "extractionMethod": "server-html",
  "sourceCategory": "mtb",
  "rawTitle": "Bulls Racer Street Mountainbike ATB Hardtail grau",
  "rawBrand": "Bulls",
  "price": 649,
  "originalPrice": 849,
  "currency": "EUR",
  "imageUrl": "https://shop.zweirad-stadler.de/out/pictures/generated/product/1/1500_1500_100/bulls-27-5-racer-street-mountainbike-atb-grau-134557-b.jpg",
  "rawSpecifications": {
    "Material": "Aluminium",
    "Farbe": "grau",
    "Gabel": "Suntour",
    "Steuersatz": "Aluminium",
    "Gänge": "24-Gang",
    "Umwerfer": "Shimano",
    "Bremsenart": "Mechanische Scheibenbremsen",
    "Bremsen": "Tektro",
    "Bremshebel": "Shimano",
    "Bremsscheiben": "160 mm / 160 mm",
    "Pedale": "Wellgo",
    "Kette": "KMC",
    "Lenker": "Aluminium",
    "Griffe": "Velo",
    "Vorbau": "Aluminium",
    "Sattelstütze Art": "Patent",
    "Sattelstütze": "Aluminium",
    "Sattel": "Selle Royal",
    "Felgen": "DDM-1",
    "Reifen": "Kenda",
    "Nabe vorne": "Shimano",
    "Nabe hinten": "Formula",
    "Akku Hersteller": "schwarz-blau",
    "Rahmenform": "Jugendfahrrad",
    "Herstellerfarbe": "pebble grey matt"
  },
  "rawFeatures": [
    "XXS = 32 cm | 26\" 4-8 Werktage",
    "XS = 37 cm | 27.5\" 4-8 Werktage",
    "S = 40 cm | 27.5\" 4-8 Werktage",
    "M = 44 cm | 29\" 4-8 Werktage",
    "L = 49 cm | 29\" 4-8 Werktage",
    "XL = 53 cm | 29\" 4-8 Werktage",
    "0% Finanzierung ab 64,90 € möglich",
    "Dienstrad-Leasing möglich",
    "14 Tage kostenloses Rückgaberecht",
    "Fahrrad vollständig montiert und mit wenigen Handgriffen fahrbereit",
    "Das Racer Street von Bulls ist MTB und Stadtrad in einem. Ein idealer Kompromiss um sportlich und gleichzeitig sicher im Alltag, sowie in der Freizeit unterwegs zu sein. So muss ein Allrounder aussehen: auf der Straße wie im Gelände.",
    "Tektro Scheibenbremsen"
  ],
  "rawSizes": [
    {
      "rawSize": "XXS = 32 cm | 26\"",
      "size": "XXS",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "4-8 Werktage"
    },
    {
      "rawSize": "XS = 37 cm | 27.5\"",
      "size": "XS",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "4-8 Werktage"
    },
    {
      "rawSize": "S = 40 cm | 27.5\"",
      "size": "S",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "4-8 Werktage"
    },
    {
      "rawSize": "M = 44 cm | 29\"",
      "size": "M",
      "sizeCm": 44,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "4-8 Werktage"
    },
    {
      "rawSize": "L = 49 cm | 29\"",
      "size": "L",
      "sizeCm": 49,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "4-8 Werktage"
    },
    {
      "rawSize": "XL = 53 cm | 29\"",
      "size": "XL",
      "sizeCm": 53,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "4-8 Werktage"
    }
  ],
  "availabilityText": "6 of 6 sizes orderable",
  "fetchedAt": "2026-09-19T06:32:29.533Z",
  "sourceMeta": {
    "savingBadge": "200 € gespartauf UVP",
    "deliveryWindows": [
      "XXS = 32 cm | 26\" 4-8 Werktage",
      "XS = 37 cm | 27.5\" 4-8 Werktage",
      "S = 40 cm | 27.5\" 4-8 Werktage",
      "M = 44 cm | 29\" 4-8 Werktage",
      "L = 49 cm | 29\" 4-8 Werktage",
      "XL = 53 cm | 29\" 4-8 Werktage"
    ]
  }
}

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