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Stevens Tonga 29"

bikeexchange:stevens_tonga_29_2025 · source URL · confidence 0.78 · GTIN 4045985057591

Eligibility

Can win a band.

Size decisions

retailer labelalphacomparable cmmatchmappingin stockvariant priceevidence
18" | 45.7cm45.7 cmexact scalestated by the retaileryes€74918" | 45.7cm
20" | 50.8cm50.8 cmexact scalestated by the retaileryes€74920" | 50.8cm

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

Identity

Canonical configuration: Stevens | Tonga Gent bitter lemon | CUES | 2026
Confidence: medium

retailerpricesizes in stock
bikes.de€734,9916 | (28"), 18 | (28")debug
BikeExchange€74918" | 45.7cm, 20" | 50.8cmdebug

Provenance — why we believe each fact

fieldsourceevidence
brandretailer:bikeexchange / parseStevens
modelretailer:bikeexchange / derivedStevens Tonga 29"
modelYearretailer:bikeexchange / parseJahr: 2025
categoryretailer:bikeexchange / derivedretailer taxonomy
frameMaterialretailer:bikeexchange / parseAluminium
groupsetFamilyretailer:bikeexchange / dictionaryShimano CUES U4000 || Shimano CUES U4000 Shadow || Shimano CUES U4000
electronicShiftingretailer:bikeexchange / derivedShimano CUES U4000 || Shimano CUES U4000 Shadow || Shimano CUES U4000
speedsretailer:bikeexchange / parsemodel code LG300
suspensionretailer:bikeexchange / derivedsuspension fork "SR Suntour XCM DS" and no rear shock in a 26-field spec table
forkretailer:bikeexchange / parseSR Suntour XCM DS
dropperPostretailer:bikeexchange / derivedseatpost row "Oxygen Driver" names no dropper, in a 26-field spec table
beltDriveretailer:bikeexchange / parseCN-LG5
wheelSizeretailer:bikeexchange / parse29
weightKgretailer:bikeexchange / parseGewicht*: 27.5" 14.3 kg | 29" 14.6 kg
powerMeterretailer:bikeexchange / derivedabsent from a 26-field spec table
availabilityretailer:bikeexchange / derivedsizes 2: 2 stocked, 0 gone, 0 unread
sellerretailer:bikeexchange / parse18" | 45.7cm: Bike Profis Zwickau

Warnings

Score breakdown

{
  "frameScore": 11,
  "drivetrainScore": 8,
  "wheelScore": 5,
  "extrasScore": 0,
  "suspensionScore": 0,
  "weightAdjustment": 0.1,
  "equipmentValue": 24.1,
  "notes": [
    "Shimano CUES = 11.",
    "10-speed -3.",
    "Wheels unknown: scored level with basic aluminium, which is neither a reward for omitting the wheelset nor a penalty for naming a cheap one.",
    "14.3 kg vs 14.4 kg mtb-hardtail reference = +0.1.",
    "Fork series not stated: scored at the bottom of the fork ladder rather than assumed."
  ],
  "marketPrice": 712,
  "valueScore": 0.951,
  "savingsVsMarket": -37
}

AI normalization

{
  "requested": [
    "wheelMaterial",
    "wheelTier",
    "brakes"
  ],
  "applied": [],
  "rejected": [],
  "notes": "Wheelset is listed as 'Laufräder: Oxygen RM-M19' (house-brand) with Formula hubs; material/tier not stated explicitly. Brake models are Tektro HD-T275 and rotors listed, but text does not explicitly say 'hydraulic' or 'mechanical', so brake type is not determinable from the source.",
  "raw": {
    "frameMaterial": {
      "value": "aluminium",
      "evidence": "Rahmen: Aluminium 6061",
      "confidence": 0.9
    },
    "groupsetBrand": {
      "value": "Shimano",
      "evidence": "Shimano Cues",
      "confidence": 0.9
    },
    "groupsetFamily": {
      "value": "CUES",
      "evidence": "Shimano CUES U4000",
      "confidence": 0.9
    },
    "electronicShifting": {
      "value": null,
      "evidence": null,
      "confidence": 0.3
    },
    "speeds": {
      "value": "9",
      "evidence": "Shimano CS-LG300-9",
      "confidence": 0.9
    },
    "mixedGroupset": {
      "value": "false",
      "evidence": "Kurbelgarnitur: Shimano CUES U4000\nSchalthebel: Shimano CUES U4000\nUmwerfer hinten: Shimano CUES U4000 Shadow",
      "confidence": 0.85
    },
    "wheelMaterial": {
      "value": null,
      "evidence": null,
      "confidence": 0.3
    },
    "wheelTier": {
      "value": null,
      "evidence": null,
      "confidence": 0.3
    },
    "brakes": {
      "value": null,
      "evidence": null,
      "confidence": 0.2
    },
    "weightKg": {
      "value": "14.6",
      "evidence": "29\" 14.6 kg",
      "confidence": 0.9
    },
    "powerMeter": {
      "value": null,
      "evidence": null,
      "confidence": 0.3
    },
    "notes": "Wheelset is listed as 'Laufräder: Oxygen RM-M19' (house-brand) with Formula hubs; material/tier not stated explicitly. Brake models are Tektro HD-T275 and rotors listed, but text does not explicitly say 'hydraulic' or 'mechanical', so brake type is not determinable from the source."
  }
}

Normalized record

{
  "id": "bikeexchange:stevens_tonga_29_2025",
  "retailer": "bikeexchange",
  "retailerProductId": "stevens_tonga_29_2025",
  "productUrl": "https://www.bikeexchange.de/de-DE/products/stevens_tonga_29_2025?sku=STE_0000597899",
  "brand": "Stevens",
  "model": "Tonga 29\"",
  "modelYear": 2025,
  "category": "mtb",
  "categoryBasis": "route",
  "sourceCategory": "mtb",
  "price": 749,
  "originalPrice": null,
  "currency": "EUR",
  "discountPercent": null,
  "frameMaterial": "aluminium",
  "frameModel": "Aluminium 6061",
  "frameTier": null,
  "groupsetBrand": "Shimano",
  "groupsetFamily": "CUES",
  "groupsetGeneration": null,
  "electronicShifting": false,
  "speeds": 10,
  "mixedGroupset": false,
  "groupsetComponents": {
    "shifters": "CUES",
    "rearDerailleur": "CUES",
    "frontDerailleur": "CUES",
    "crank": "CUES",
    "cassette": "CUES"
  },
  "groupsetTierSpread": 0,
  "crank": "Shimano CUES U4000",
  "cassette": "Shimano CS-LG300-9",
  "brakes": "unknown",
  "brakePistons": null,
  "brakeTier": "unknown",
  "suspension": "front",
  "fork": {
    "make": "SR Suntour",
    "line": "XCM",
    "tier": "unknown",
    "travelMm": null
  },
  "rearShock": null,
  "dropperPost": false,
  "beltDrive": false,
  "hubDynamo": null,
  "rack": null,
  "mudguards": null,
  "chaincase": null,
  "kickstand": null,
  "lighting": null,
  "wheelSize": "29",
  "wheelset": "Oxygen RM-M19",
  "wheelMaterial": "unknown",
  "wheelTier": "unknown",
  "tyres": "Schwalbe Smart Sam Active-Line",
  "weightKg": 14.3,
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "18\" | 45.7cm",
      "size": null,
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 749,
      "seller": "Bike Profis Zwickau",
      "deliveryNote": "Reguläre Lieferzeit 4 Tage"
    },
    {
      "rawSize": "20\" | 50.8cm",
      "size": null,
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 749,
      "seller": null,
      "deliveryNote": null
    }
  ],
  "seller": "Bike Profis Zwickau",
  "availability": "in-stock",
  "gtins": [
    "4045985057591"
  ],
  "imageUrl": "https://images.cdn.europe-west1.gcp.commercetools.com/078b97e9-ed31-4c81-baae-cdd44f3bf3c1/450b4ff4a8d29761e708-xt9V-k72.png",
  "rawTitle": "Stevens Tonga 29\"",
  "fetchedAt": "2026-09-19T05:38:14.052Z",
  "normalizationConfidence": 0.78,
  "warnings": [
    {
      "code": "wheel-material-unknown",
      "message": "Wheel material could not be established.",
      "severity": "info"
    }
  ]
}

Parsed specification table

{
  "Gewicht*": "27.5\" 14.3 kg | 29\" 14.6 kg",
  "Rahmen": "Aluminium 6061",
  "Zulässiges Gesamtgewicht": "115 kg",
  "Bremse hinten": "Tektro HD-T275",
  "Bremsscheibe vorne": "Tektro TR180-35",
  "Bremse vorne": "Tektro HD-T275",
  "Bremsscheibe hinten": "TR160-35",
  "Bremshebel": "Tektro HD-T275",
  "Reifen": "Schwalbe Smart Sam Active-Line",
  "Nabe hinten": "Formula CL-52",
  "Laufräder": "Oxygen RM-M19",
  "Nabe vorne": "Formula CL-51",
  "Vorbau": "Oxygen Driver",
  "Steuersatz": "STEVENS MTB 1 1/8\"",
  "Lenker": "Oxygen Driver",
  "Umwerfer vorne": "Shimano CUES U4000",
  "Kassette": "Shimano CS-LG300-9",
  "Kurbelgarnitur": "Shimano CUES U4000",
  "Pedale": "ATB Pro Reflex",
  "Schalthebel": "Shimano CUES U4000",
  "Umwerfer hinten": "Shimano CUES U4000 Shadow",
  "Kette / Riemen": "Shimano CN-LG500 | 29\": Shimano CN-HG53",
  "Sattel": "Oxygen Havoc",
  "Sattelstütze": "Oxygen Driver",
  "Gabel": "SR Suntour XCM DS",
  "Jahr": "2025"
}

Raw adapter output

{
  "retailer": "bikeexchange",
  "retailerProductId": "stevens_tonga_29_2025",
  "productUrl": "https://www.bikeexchange.de/de-DE/products/stevens_tonga_29_2025?sku=STE_0000597899",
  "extractionMethod": "embedded-json",
  "sourceCategory": "mtb",
  "rawTitle": "Stevens Tonga 29\"",
  "rawBrand": "Stevens",
  "price": 749,
  "originalPrice": null,
  "currency": "EUR",
  "imageUrl": "https://images.cdn.europe-west1.gcp.commercetools.com/078b97e9-ed31-4c81-baae-cdd44f3bf3c1/450b4ff4a8d29761e708-xt9V-k72.png",
  "rawSpecifications": {
    "Gewicht*": "27.5\" 14.3 kg | 29\" 14.6 kg",
    "Rahmen": "Aluminium 6061",
    "Zulässiges Gesamtgewicht": "115 kg",
    "Bremse hinten": "Tektro HD-T275",
    "Bremsscheibe vorne": "Tektro TR180-35",
    "Bremse vorne": "Tektro HD-T275",
    "Bremsscheibe hinten": "TR160-35",
    "Bremshebel": "Tektro HD-T275",
    "Reifen": "Schwalbe Smart Sam Active-Line",
    "Nabe hinten": "Formula CL-52",
    "Laufräder": "Oxygen RM-M19",
    "Nabe vorne": "Formula CL-51",
    "Vorbau": "Oxygen Driver",
    "Steuersatz": "STEVENS MTB 1 1/8\"",
    "Lenker": "Oxygen Driver",
    "Umwerfer vorne": "Shimano CUES U4000",
    "Kassette": "Shimano CS-LG300-9",
    "Kurbelgarnitur": "Shimano CUES U4000",
    "Pedale": "ATB Pro Reflex",
    "Schalthebel": "Shimano CUES U4000",
    "Umwerfer hinten": "Shimano CUES U4000 Shadow",
    "Kette / Riemen": "Shimano CN-LG500 | 29\": Shimano CN-HG53",
    "Sattel": "Oxygen Havoc",
    "Sattelstütze": "Oxygen Driver",
    "Gabel": "SR Suntour XCM DS",
    "Jahr": "2025"
  },
  "rawFeatures": [
    "Aluminium",
    "Shimano Cues",
    "29\"",
    "Beschreibung"
  ],
  "rawSizes": [
    {
      "rawSize": "18\" | 45.7cm",
      "size": null,
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 749,
      "seller": "Bike Profis Zwickau",
      "deliveryNote": "Reguläre Lieferzeit 4 Tage"
    },
    {
      "rawSize": "20\" | 50.8cm",
      "size": null,
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 749,
      "seller": null,
      "deliveryNote": null
    }
  ],
  "availabilityText": "sizes 2: 2 stocked, 0 gone, 0 unread",
  "fetchedAt": "2026-09-19T05:38:14.052Z",
  "sourceMeta": {
    "skus": [
      "4045985057591"
    ],
    "shopSkus": [
      "STE_0000597899",
      "STE_0000597899",
      "STE_0000597900"
    ],
    "seller": "Bike Profis Zwickau",
    "sellerOfSize": "18\" | 45.7cm",
    "sellerId": "6b33b924-b2d8-4829-95f2-faeec156cf8b",
    "storeKey": "store_01KBQDFCFACWG5Y0ZNKH7W1XQJ_eur",
    "storeCity": "Zwickau",
    "storeCountry": "DE",
    "storeDelivers": true,
    "storeClickAndCollect": true,
    "storeReservation": true,
    "storeDeliveryTime": "P4D",
    "shippingPrice": 74.9,
    "hasMoreSellers": false,
    "condition": "NEW",
    "ctProductId": "69304c43-b8d1-4a64-bed3-b69f30c7264d",
    "shopCategory": "Hardtail",
    "colourCount": 2,
    "fetchedSku": "STE_0000597899"
  }
}

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