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Specialized Rockhopper Base VN 29´´ 2025 mountainbike

bikeinn:141529417 · source URL · confidence 0.95

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: Specialized | Rockhopper Base VN 29´´ mountainbike | Altus | 2025
Confidence: high

• brand exact (Specialized)
• model normalized to "rockhopper base vn 29 mountainbike"
• groupset family exact (Altus)
• model year exact (2025)
• 2 listings across 1 retailer

Provenance — why we believe each fact

Warnings

• info single-size-only — Only one size is in stock (M).

Score breakdown

{
  "frameScore": 11,
  "drivetrainScore": 3,
  "wheelScore": 5,
  "extrasScore": 0,
  "suspensionScore": 0,
  "weightAdjustment": 0.8,
  "equipmentValue": 19.8,
  "notes": [
    "Shimano Altus = 7.",
    "9-speed -4.",
    "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 mtb-hardtail.",
    "13.87 kg vs 14.4 kg mtb-hardtail reference = +0.8.",
    "Fork series not stated: scored at the bottom of the fork ladder rather than assumed.",
    "Brake series \"basic\" +0."
  ],
  "marketPrice": 583,
  "valueScore": 1.027,
  "savingsVsMarket": 15.509999999999991
}

AI normalization

{
  "requested": [
    "wheelMaterial",
    "wheelTier"
  ],
  "applied": [
    "wheelMaterial"
  ],
  "rejected": [],
  "notes": "Wheelset is listed as a house 'Speziallegierung' (special alloy) so wheelMaterial is set to aluminium. Because the wheelset is an unrecognised house-brand ('Speziallegierung'), wheelTier cannot be determined and is left null. electronic shifting and power meter are not mentioned in the source, so left null.",
  "raw": {
    "frameMaterial": {
      "value": "aluminium",
      "evidence": "Rahmen: Specialized A1 Premium konifiziertes Aluminium",
      "confidence": 0.95
    },
    "groupsetBrand": {
      "value": "Shimano",
      "evidence": "Antriebsmarke: Shimano",
      "confidence": 0.95
    },
    "groupsetFamily": {
      "value": "Altus",
      "evidence": "Shimano Altus",
      "confidence": 0.9
    },
    "electronicShifting": {
      "value": null,
      "evidence": null,
      "confidence": 0.5
    },
    "speeds": {
      "value": "9",
      "evidence": "9-fach",
      "confidence": 0.95
    },
    "mixedGroupset": {
      "value": "true",
      "evidence": "Schaltwerk Shimano Altus Fd-M2020 2-fach\nHinterrad-Schaltwerk Shimano Shadow Rd-M2000 9-fach\nKurbelgarnitur Robust 2x, geschmiedete Legierung",
      "confidence": 0.9
    },
    "wheelMaterial": {
      "value": "aluminium",
      "evidence": "Räder: Speziallegierung, nur für Scheibenbremse, doppelwandig, 25 mm Maulweite, 32h",
      "confidence": 0.9
    },
    "wheelTier": {
      "value": null,
      "evidence": null,
      "confidence": 0.5
    },
    "brakes": {
      "value": "hydraulic-disc",
      "evidence": "Hydraulische Scheibe",
      "confidence": 0.95
    },
    "weightKg": {
      "value": "13.87",
      "evidence": "Gewicht 13.87 kg (30 lb, 9.2 oz) Größe M",
      "confidence": 0.95
    },
    "powerMeter": {
      "value": null,
      "evidence": null,
      "confidence": 0.5
    },
    "notes": "Wheelset is listed as a house 'Speziallegierung' (special alloy) so wheelMaterial is set to aluminium. Because the wheelset is an unrecognised house-brand ('Speziallegierung'), wheelTier cannot be determined and is left null. electronic shifting and power meter are not mentioned in the source, so left null."
  }
}

Normalized record

{
  "id": "bikeinn:141529417",
  "retailer": "bikeinn",
  "retailerProductId": "141529417",
  "productUrl": "https://www.tradeinn.com/bikeinn/de/specialized-rockhopper-base-vn-29-2025-mountainbike/141529417/p",
  "brand": "Specialized",
  "model": "Rockhopper Base VN 29´´ mountainbike",
  "modelYear": 2025,
  "category": "mtb",
  "categoryBasis": "stated",
  "sourceCategory": "mtb",
  "price": 567.49,
  "originalPrice": 649,
  "currency": "EUR",
  "discountPercent": 13,
  "frameMaterial": "aluminium",
  "frameModel": "Specialized A1 Premium konifiziertes Aluminium, Zero-Stack-Steuerrohr, interne Kabelführung, geschmiedete 135x9-mm-Ausfallenden, an der Kettenstrebe montierte S",
  "frameTier": null,
  "groupsetBrand": "Shimano",
  "groupsetFamily": "Altus",
  "groupsetGeneration": null,
  "electronicShifting": false,
  "speeds": 9,
  "mixedGroupset": false,
  "groupsetComponents": {
    "shifters": "Altus",
    "rearDerailleur": "Altus"
  },
  "groupsetTierSpread": 0,
  "crank": "Robust 2x, geschmiedete Legierung",
  "cassette": "Sunrace, 9-fach, 11-36T",
  "brakes": "hydraulic-disc",
  "brakePistons": 2,
  "brakeTier": "basic",
  "suspension": "front",
  "fork": {
    "make": "SR Suntour",
    "line": "Xcm",
    "tier": "unknown",
    "travelMm": 100
  },
  "rearShock": null,
  "dropperPost": false,
  "beltDrive": false,
  "hubDynamo": null,
  "rack": null,
  "mudguards": null,
  "chaincase": null,
  "kickstand": null,
  "lighting": null,
  "wheelSize": null,
  "wheelset": "Speziallegierung, nur für Scheibenbremse, doppelwandig, 25 mm Maulweite, 32h",
  "wheelMaterial": "aluminium",
  "wheelTier": "unknown",
  "tyres": "Fast Trak Sport, 27.5/29x2.35 ;",
  "weightKg": 13.87,
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "M",
      "size": "M",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 1,
      "price": 567.49
    }
  ],
  "seller": null,
  "availability": "limited",
  "gtins": [],
  "imageUrl": "https://www.tradeinn.com/f/14152/141529417/specialized-rockhopper-base-vn-29-2025-mountainbike.webp",
  "rawTitle": "Specialized Rockhopper Base VN 29´´ 2025 mountainbike",
  "fetchedAt": "2026-09-19T06:15:46.775Z",
  "normalizationConfidence": 0.95,
  "warnings": [
    {
      "code": "single-size-only",
      "message": "Only one size is in stock (M).",
      "severity": "info"
    }
  ]
}

Parsed specification table

{
  "Rahmen": "Specialized A1 Premium konifiziertes Aluminium, Zero-Stack-Steuerrohr, interne Kabelführung, geschmiedete 135x9-mm-Ausfallenden, an der Kettenstrebe montierte Scheibenbremse, austauschbares Schaltauge aus Aluminium, versteckte Gepäckträgerhalterungen, kompatibel mit Vario-Sattelstütze",
  "Gabel": "Sr Suntour Xcm 27.5, 30-mm-Standrohre, Rx Tune, Stahlfeder, QR, 80/90/100 mm Federweg (größenspezifisch), 42 mm Offset",
  "Schaltwerk": "Shimano Altus Fd-M2020 2-fach",
  "Hinterrad-Schaltwerk": "Shimano Shadow Rd-M2000 9-fach",
  "Kurbelgarnitur": "Robust 2x, geschmiedete Legierung",
  "Kassette": "Sunrace, 9-fach, 11-36T",
  "Schalthebel": "Shimano Altus, Rapidfire Plus, 9-fach",
  "Vordere Bremse": "Shimano Br-Mt200, Hydraulische Scheibe, 180Mm",
  "Hintere Bremse": "Shimano Br-Mt200, Hydraulische Scheibe, 180Mm",
  "Kette": "KMC X9EPT, 9-fach, Anti-Rost-Beschichtung mit wiederverwendbarem Missing Link™",
  "Tretlager": "Vierkant, 73mm, Innenlager, 122.5mm Achse",
  "Räder": "Speziallegierung, nur für Scheibenbremse, doppelwandig, 25 mm Maulweite, 32h",
  "Reifen": "Fast Trak Sport, 27.5/29x2.35 ;",
  "Lenker": "Aluminium Mini Rise, 9 Grad Biegung nach hinten, 15 mm Steigung, 31.8 mm",
  "Vorbau": "Robuste 3D-geschmiedete Legierung, 31.8 mm, 6 Grad Steigung",
  "Sattel": "Bridge Sport, Stahlstreben, 155/143mm",
  "Sattelstütze": "Legierung, 2-Schrauben-Klemmung, 30.9mm",
  "Gewicht": "13.87 kg (30 lb, 9.2 oz) Größe M",
  "Farbe": "Lila",
  "Raddurchmesser": "29´´",
  "Material": "Aluminium",
  "Art der Federung": "Hard Tail",
  "Antriebsmarke": "Shimano"
}

Raw adapter output

{
  "retailer": "bikeinn",
  "retailerProductId": "141529417",
  "productUrl": "https://www.tradeinn.com/bikeinn/de/specialized-rockhopper-base-vn-29-2025-mountainbike/141529417/p",
  "extractionMethod": "json-ld",
  "sourceCategory": "mtb",
  "rawTitle": "Specialized Rockhopper Base VN 29´´ 2025 mountainbike",
  "rawBrand": "Specialized",
  "price": 567.49,
  "originalPrice": 649,
  "currency": "EUR",
  "imageUrl": "https://www.tradeinn.com/f/14152/141529417/specialized-rockhopper-base-vn-29-2025-mountainbike.webp",
  "rawSpecifications": {
    "Rahmen": "Specialized A1 Premium konifiziertes Aluminium, Zero-Stack-Steuerrohr, interne Kabelführung, geschmiedete 135x9-mm-Ausfallenden, an der Kettenstrebe montierte Scheibenbremse, austauschbares Schaltauge aus Aluminium, versteckte Gepäckträgerhalterungen, kompatibel mit Vario-Sattelstütze",
    "Gabel": "Sr Suntour Xcm 27.5, 30-mm-Standrohre, Rx Tune, Stahlfeder, QR, 80/90/100 mm Federweg (größenspezifisch), 42 mm Offset",
    "Schaltwerk": "Shimano Altus Fd-M2020 2-fach",
    "Hinterrad-Schaltwerk": "Shimano Shadow Rd-M2000 9-fach",
    "Kurbelgarnitur": "Robust 2x, geschmiedete Legierung",
    "Kassette": "Sunrace, 9-fach, 11-36T",
    "Schalthebel": "Shimano Altus, Rapidfire Plus, 9-fach",
    "Vordere Bremse": "Shimano Br-Mt200, Hydraulische Scheibe, 180Mm",
    "Hintere Bremse": "Shimano Br-Mt200, Hydraulische Scheibe, 180Mm",
    "Kette": "KMC X9EPT, 9-fach, Anti-Rost-Beschichtung mit wiederverwendbarem Missing Link™",
    "Tretlager": "Vierkant, 73mm, Innenlager, 122.5mm Achse",
    "Räder": "Speziallegierung, nur für Scheibenbremse, doppelwandig, 25 mm Maulweite, 32h",
    "Reifen": "Fast Trak Sport, 27.5/29x2.35 ;",
    "Lenker": "Aluminium Mini Rise, 9 Grad Biegung nach hinten, 15 mm Steigung, 31.8 mm",
    "Vorbau": "Robuste 3D-geschmiedete Legierung, 31.8 mm, 6 Grad Steigung",
    "Sattel": "Bridge Sport, Stahlstreben, 155/143mm",
    "Sattelstütze": "Legierung, 2-Schrauben-Klemmung, 30.9mm",
    "Gewicht": "13.87 kg (30 lb, 9.2 oz) Größe M",
    "Farbe": "Lila",
    "Raddurchmesser": "29´´",
    "Material": "Aluminium",
    "Art der Federung": "Hard Tail",
    "Antriebsmarke": "Shimano"
  },
  "rawFeatures": [
    "Gabel Sr Suntour Xcm 27.5, 30-mm-Standrohre, Rx Tune, Stahlfeder, QR, 80/90/100 mm Federweg (größenspezifisch), 42 mm Offset",
    "Schaltwerk Shimano Altus Fd-M2020 2-fach",
    "Hinterrad-Schaltwerk Shimano Shadow Rd-M2000 9-fach",
    "Kurbelgarnitur Robust 2x, geschmiedete Legierung",
    "Kassette Sunrace, 9-fach, 11-36T",
    "Schalthebel Shimano Altus, Rapidfire Plus, 9-fach",
    "Vordere Bremse Shimano Br-Mt200, Hydraulische Scheibe, 180Mm",
    "Hintere Bremse Shimano Br-Mt200, Hydraulische Scheibe, 180Mm",
    "Kette KMC X9EPT, 9-fach, Anti-Rost-Beschichtung mit wiederverwendbarem Missing Link™",
    "Tretlager Vierkant, 73mm, Innenlager, 122.5mm Achse",
    "Räder Speziallegierung, nur für Scheibenbremse, doppelwandig, 25 mm Maulweite, 32h",
    "Reifen Fast Trak Sport, 27.5/29x2.35 ;",
    "Lenker Aluminium Mini Rise, 9 Grad Biegung nach hinten, 15 mm Steigung, 31.8 mm",
    "Vorbau Robuste 3D-geschmiedete Legierung, 31.8 mm, 6 Grad Steigung",
    "Sattel Bridge Sport, Stahlstreben, 155/143mm",
    "Sattelstütze Legierung, 2-Schrauben-Klemmung, 30.9mm",
    "Gewicht 13.87 kg (30 lb, 9.2 oz) Größe M",
    "Farbe Lila",
    "Raddurchmesser 29´´",
    "Material Aluminium"
  ],
  "rawSizes": [
    {
      "rawSize": "M",
      "size": "M",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 1,
      "price": 567.49
    }
  ],
  "availabilityText": null,
  "fetchedAt": "2026-09-19T06:15:46.775Z",
  "sourceMeta": {
    "indexPrice": 567.49,
    "indexWeight": "15.00",
    "hasSpecFlag": "",
    "stockedSizes": [
      {
        "size": "M",
        "exist": "1",
        "ref": "91825-7703"
      }
    ],
    "mpn": "91825-7703"
  }
}

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