← Review table (e-bike) · shopper page

Dynamics Forte Ultra 508 E-Bike Trekking Tiefeinsteiger 28" schwarz

zweirad-stadler:dynamics-forte-ultra-508-e-bike-trekking-tiefeinsteiger-28-schwarz · source URL · confidence 0.69

Eligibility

Cannot win: confidence 0.69 below 0.75; e-bike bikes are not value-ranked yet (no e-bike-specific equipment model)

Size decisions

A shopper asking for: 54 → 55 cm in stock · 56 → 55 cm in stock · 58 → nothing compatible · 60 → nothing compatible

Identity

Only listing of this configuration — nothing to merge.

Provenance — why we believe each fact

Warnings

• high frame-material-unknown — Frame material could not be established.
• info wheel-material-unknown — Wheel material could not be established.

Score breakdown

{
  "frameScore": 8,
  "drivetrainScore": 3,
  "wheelScore": 5,
  "extrasScore": 0,
  "suspensionScore": 0,
  "weightAdjustment": 0,
  "equipmentValue": 16,
  "notes": [
    "Frame material unknown: scored below aluminium rather than assumed.",
    "Shimano Altus = 7.",
    "8-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.",
    "Weight not published: no weight adjustment either way.",
    "Fork series not stated: scored at the bottom of the fork ladder rather than assumed."
  ],
  "marketPrice": null,
  "valueScore": null,
  "savingsVsMarket": null
}

AI normalization

{
  "requested": [
    "frameMaterial",
    "wheelMaterial",
    "wheelTier",
    "weightKg"
  ],
  "applied": [],
  "rejected": [],
  "notes": "Frame material, wheel material, wheel tier, and complete-bike weight are not stated. The source names an FSA crank and Shimano Altus derailleur, but does not establish normalized groupset families for all drivetrain components; mixedGroupset is therefore unresolved. Electronic shifting and power-meter status are not explicitly stated.",
  "raw": {
    "frameMaterial": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "groupsetBrand": {
      "value": "Shimano",
      "evidence": "Schaltwerk: Shimano Altus",
      "confidence": 0.99
    },
    "groupsetFamily": {
      "value": "Altus",
      "evidence": "Schaltwerk: Shimano Altus",
      "confidence": 0.99
    },
    "electronicShifting": {
      "value": null,
      "evidence": null,
      "confidence": 0.95
    },
    "speeds": {
      "value": "8",
      "evidence": "Gänge: 8-Gang",
      "confidence": 0.99
    },
    "mixedGroupset": {
      "value": null,
      "evidence": null,
      "confidence": 0.9
    },
    "wheelMaterial": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "wheelTier": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "brakes": {
      "value": "hydraulic-disc",
      "evidence": "Bremsenart: Hydraulische Scheibenbremsen",
      "confidence": 0.99
    },
    "weightKg": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "powerMeter": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "notes": "Frame material, wheel material, wheel tier, and complete-bike weight are not stated. The source names an FSA crank and Shimano Altus derailleur, but does not establish normalized groupset families for all drivetrain components; mixedGroupset is therefore unresolved. Electronic shifting and power-meter status are not explicitly stated."
  }
}

Normalized record

{
  "id": "zweirad-stadler:dynamics-forte-ultra-508-e-bike-trekking-tiefeinsteiger-28-schwarz",
  "retailer": "zweirad-stadler",
  "retailerProductId": "dynamics-forte-ultra-508-e-bike-trekking-tiefeinsteiger-28-schwarz",
  "productUrl": "https://shop.zweirad-stadler.de/fahrrad-shop/e-bikes/e-trekkingrad/dynamics-forte-ultra-508-e-bike-trekking-tiefeinsteiger-28-schwarz.html",
  "brand": "Dynamics",
  "model": "Forte Ultra 508 E-Bike Trekking Tiefeinsteiger 28\" schwarz",
  "modelYear": null,
  "category": "e-bike",
  "categoryBasis": "stated",
  "sourceCategory": "e-bike",
  "price": 1792,
  "originalPrice": 3199,
  "currency": "EUR",
  "discountPercent": 44,
  "frameMaterial": "unknown",
  "frameModel": null,
  "frameTier": null,
  "groupsetBrand": "Shimano",
  "groupsetFamily": "Altus",
  "groupsetGeneration": null,
  "electronicShifting": false,
  "speeds": 8,
  "mixedGroupset": false,
  "groupsetComponents": {
    "rearDerailleur": "Altus"
  },
  "groupsetTierSpread": 0,
  "crank": "FSA",
  "cassette": null,
  "brakes": "hydraulic-disc",
  "brakePistons": null,
  "brakeTier": "unknown",
  "suspension": "front",
  "fork": {
    "make": "SR Suntour",
    "line": null,
    "tier": "unknown",
    "travelMm": 63
  },
  "rearShock": null,
  "dropperPost": null,
  "beltDrive": false,
  "hubDynamo": null,
  "rack": true,
  "mudguards": true,
  "chaincase": null,
  "kickstand": null,
  "lighting": true,
  "wheelSize": "28",
  "wheelset": null,
  "wheelMaterial": "unknown",
  "wheelTier": "unknown",
  "tyres": "VeeTyre mit Reflexstreifen, 42-622",
  "weightKg": null,
  "ebike": {
    "motor": {
      "text": "Bosch | Bosch Performance Line",
      "brand": "bosch",
      "model": null,
      "position": "mid",
      "torqueNm": 75,
      "torqueSource": "retailer",
      "ratedPowerW": null,
      "peakPowerW": null
    },
    "battery": {
      "text": "Bosch PowerPack 545",
      "capacityWh": 545,
      "count": 1,
      "integration": "external",
      "removable": null
    },
    "speedClass": "pedelec-25",
    "rangeExtender": "unknown",
    "display": "Bosch LED-Remote",
    "abs": null,
    "autoShift": null,
    "statedRangeKm": null,
    "eDiscipline": "e-trekking",
    "eDisciplineBasis": "leaf",
    "frameShape": "step-through",
    "cargoType": "unknown",
    "maxSystemWeightKg": null,
    "rackCapacityKg": 25,
    "weightIncludesBattery": null
  },
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "45 cm",
      "size": "45",
      "sizeCm": 45,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "7-14 Werktage"
    },
    {
      "rawSize": "50 cm",
      "size": "50",
      "sizeCm": 50,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "7-14 Werktage"
    },
    {
      "rawSize": "55 cm",
      "size": "55",
      "sizeCm": 55,
      "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/dynamics-28-forteultra508-wave-126869-2024a.jpg",
  "rawTitle": "Dynamics Forte Ultra 508 E-Bike Trekking Tiefeinsteiger 28\" schwarz",
  "fetchedAt": "2026-09-26T08:20:10.271Z",
  "normalizationConfidence": 0.69,
  "warnings": [
    {
      "code": "frame-material-unknown",
      "message": "Frame material could not be established.",
      "severity": "high"
    },
    {
      "code": "wheel-material-unknown",
      "message": "Wheel material could not be established.",
      "severity": "info"
    }
  ],
  "ebikeAi": {
    "requested": [
      "motorModel"
    ],
    "applied": [],
    "rejected": [],
    "notes": "The source names a Bosch Performance Line motor but does not establish the exact motor model.",
    "raw": {
      "motorBrand": {
        "value": "bosch",
        "evidence": "Motorhersteller: Bosch",
        "confidence": 1
      },
      "motorModel": {
        "value": null,
        "evidence": null,
        "confidence": 1
      },
      "batteryWh": {
        "value": "545",
        "evidence": "Kapazität: 545 Wh",
        "confidence": 1
      },
      "speedClass": {
        "value": "pedelec-25",
        "evidence": "Unterstützung: bis zu 25 km/h",
        "confidence": 1
      },
      "batteryIntegration": {
        "value": null,
        "evidence": null,
        "confidence": 1
      },
      "frameShape": {
        "value": "step-through",
        "evidence": "Rahmenform: Tiefeinsteiger",
        "confidence": 1
      },
      "notes": "The source names a Bosch Performance Line motor but does not establish the exact motor model."
    }
  }
}

Parsed specification table

{
  "Farbe": "schwarz",
  "Gabel": "SR Suntour NEX-E25",
  "Federweg Gabel": "63 mm",
  "Schaltung": "Kettenschaltung",
  "Gänge": "8-Gang",
  "Schaltwerk": "Shimano Altus",
  "Schalthebel": "Shimano",
  "Bremsenart": "Hydraulische Scheibenbremsen",
  "Bremsen": "Tektro HD-M270",
  "Bremshebel": "Tektro",
  "Bremsscheiben": "VR: 180 mm | HR: 160 mm",
  "Kurbel": "FSA",
  "Griffe": "Ergonomische Griffe",
  "Vorbau": "Verstellbarer Vorbau",
  "Sattel": "Ergonomischer Sattel",
  "Laufradgröße": "28\"",
  "Reifen": "VeeTyre mit Reflexstreifen, 42-622",
  "Motorart": "Mittelmotor",
  "Motorhersteller": "Bosch",
  "Motor": "Bosch Performance Line",
  "Max. Drehmoment": "75 Nm",
  "Unterstützung": "bis zu 25 km/h",
  "Akku": "Bosch PowerPack 545",
  "Kapazität": "545 Wh",
  "Display": "Bosch LED-Remote",
  "Scheinwerfer": "LED-Scheinwerfer mit Reflektor",
  "Rücklicht": "LED-Rücklicht",
  "Gepäckträger": "MonkeyLoad (max. 25 kg)",
  "Schutzbleche": "Kunststoff",
  "Sonstiges": "Schnellspanner, Seitenständer, Kettenschutz, Klingel, Fidlock-Flaschenhalter",
  "Rahmenform": "Tiefeinsteiger"
}

Raw adapter output

{
  "retailer": "zweirad-stadler",
  "retailerProductId": "dynamics-forte-ultra-508-e-bike-trekking-tiefeinsteiger-28-schwarz",
  "productUrl": "https://shop.zweirad-stadler.de/fahrrad-shop/e-bikes/e-trekkingrad/dynamics-forte-ultra-508-e-bike-trekking-tiefeinsteiger-28-schwarz.html",
  "extractionMethod": "server-html",
  "sourceCategory": "e-bike",
  "rawTitle": "Dynamics Forte Ultra 508 E-Bike Trekking Tiefeinsteiger 28\" schwarz",
  "rawBrand": "Dynamics",
  "price": 1792,
  "originalPrice": 3199,
  "currency": "EUR",
  "imageUrl": "https://shop.zweirad-stadler.de/out/pictures/generated/product/1/1500_1500_100/dynamics-28-forteultra508-wave-126869-2024a.jpg",
  "rawSpecifications": {
    "Farbe": "schwarz",
    "Gabel": "SR Suntour NEX-E25",
    "Federweg Gabel": "63 mm",
    "Schaltung": "Kettenschaltung",
    "Gänge": "8-Gang",
    "Schaltwerk": "Shimano Altus",
    "Schalthebel": "Shimano",
    "Bremsenart": "Hydraulische Scheibenbremsen",
    "Bremsen": "Tektro HD-M270",
    "Bremshebel": "Tektro",
    "Bremsscheiben": "VR: 180 mm | HR: 160 mm",
    "Kurbel": "FSA",
    "Griffe": "Ergonomische Griffe",
    "Vorbau": "Verstellbarer Vorbau",
    "Sattel": "Ergonomischer Sattel",
    "Laufradgröße": "28\"",
    "Reifen": "VeeTyre mit Reflexstreifen, 42-622",
    "Motorart": "Mittelmotor",
    "Motorhersteller": "Bosch",
    "Motor": "Bosch Performance Line",
    "Max. Drehmoment": "75 Nm",
    "Unterstützung": "bis zu 25 km/h",
    "Akku": "Bosch PowerPack 545",
    "Kapazität": "545 Wh",
    "Display": "Bosch LED-Remote",
    "Scheinwerfer": "LED-Scheinwerfer mit Reflektor",
    "Rücklicht": "LED-Rücklicht",
    "Gepäckträger": "MonkeyLoad (max. 25 kg)",
    "Schutzbleche": "Kunststoff",
    "Sonstiges": "Schnellspanner, Seitenständer, Kettenschutz, Klingel, Fidlock-Flaschenhalter",
    "Rahmenform": "Tiefeinsteiger"
  },
  "rawFeatures": [
    "0% Finanzierung ab 179,20 € möglich",
    "Dienstrad-Leasing möglich",
    "14 Tage kostenloses Rückgaberecht",
    "Unsere E-Bikes werden alle vor der Auslieferung fachmännisch montiert und von unseren Werkstatt-Profis Probe gefahren",
    "Das Dynamics Forte City- und Trekkingrad bringt dich komfortabel ans Ziel. Ergonomie und Fahrgefühl bilden die Grundlage des Designs dieses E-Bikes unserer Hausmarke. Das Forte Ultra 508 bietet die gleichen Vorzüge wie das Forte Plus, verfügt aber mit einem 545 Wattstunden Akku über eine größere Reichweite und mit dem Bosch Performance Line Motor über mehr Leistung.",
    "Bosch Performance Line Motor 75 Nm Smart System",
    "545 Wh Bosch PowerPack Akku",
    "8-Gang Shimano Schaltung",
    "Tektro Hydraulische Scheibenbremsen",
    "Scheinwerfer und Rücklicht",
    "MonkeyLoad Systemgepäckträger (max. 25 Kilogramm Last)",
    "Geschwindigkeit: Bis zu 25 km/h"
  ],
  "rawSizes": [
    {
      "rawSize": "45 cm",
      "size": "45",
      "sizeCm": 45,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "7-14 Werktage"
    },
    {
      "rawSize": "50 cm",
      "size": "50",
      "sizeCm": 50,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "7-14 Werktage"
    },
    {
      "rawSize": "55 cm",
      "size": "55",
      "sizeCm": 55,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "4-8 Werktage"
    }
  ],
  "availabilityText": "3 of 3 sizes orderable",
  "fetchedAt": "2026-09-26T08:20:10.271Z",
  "sourceMeta": {
    "savingBadge": "1407 € gespartauf UVP",
    "deliveryWindows": [
      "45 cm 7-14 Werktage",
      "50 cm 7-14 Werktage",
      "55 cm 4-8 Werktage"
    ]
  },
  "listingPath": [
    "E-Bikes",
    "E-Trekkingrad"
  ]
}

Impressum · Privacy · Contact · About BikeFind