Corratec Life CX8 Belt

bikeexchange:corratec_life_cx8_belt_2026 · source URL · confidence 0.53 · GTIN 4043184847067

Eligibility

Cannot win: confidence 0.53 below 0.75; e-bike bikes are not value-ranked yet (no e-bike-specific equipment model)

Size decisions

retailer label	alpha	comparable cm	match	mapping	in stock	variant price	evidence
40cm	—	40 cm	exact scale	stated by the retailer	yes	€4.299	40cm
47cm	—	47 cm	exact scale	stated by the retailer	yes	€4.299	47cm
53cm	—	53 cm	exact scale	stated by the retailer	yes	€4.299	53cm
57cm	—	57 cm	exact scale	stated by the retailer	yes	€4.299	57cm

retailer label

alpha

comparable cm

match

mapping

in stock

variant price

evidence

40cm

—

40 cm

exact scale

stated by the retailer

yes

€4.299

40cm

47cm

—

47 cm

exact scale

stated by the retailer

yes

€4.299

47cm

53cm

—

53 cm

exact scale

stated by the retailer

yes

€4.299

53cm

57cm

—

57 cm

exact scale

stated by the retailer

yes

€4.299

57cm

A shopper asking for: 54 → 53cm in stock · 56 → 57cm in stock · 58 → 57cm in stock · 60 → nothing compatible

Identity

Canonical configuration: Corratec | Life CX8 Belt | 2026
Confidence: high

brand exact (Corratec)
model normalized to "life cx8 belt"
groupset family unidentified on every listing
model year exact (2026)
GTIN match (4043184847067)
2 listings across 2 retailers

retailer	price	sizes in stock
BikeExchange	€4.299	40cm, 47cm, 53cm, 57cm	debug
bikes.de	€5.499	53 cm \| (27,5")	debug

retailer

price

sizes in stock

BikeExchange

€4.299

40cm, 47cm, 53cm, 57cm

debug

bikes.de

€5.499

53 cm | (27,5")

debug

Provenance — why we believe each fact

field source evidence

brand retailer:bikeexchange / parse Corratec

model retailer:bikeexchange / derived Corratec Life CX8 Belt

modelYear retailer:bikeexchange / parse Jahr: 2026

category retailer:bikeexchange / derived retailer taxonomy

frameMaterial retailer:bikeexchange / parse Aluminium

suspension retailer:bikeexchange / derived suspension fork "SR SUNTOUR MOBIE34-D EQ 2CR 27.5" 15x110mm 100mm" and no rear shock in a 31-field spec table

fork retailer:bikeexchange / parse SR SUNTOUR MOBIE34-D EQ 2CR 27.5" 15x110mm 100mm

dropperPost retailer:bikeexchange / derived seatpost row "ERGOTEC Ray 31.6mm" names no dropper, in a 31-field spec table

beltDrive retailer:bikeexchange / parse GATES carbon drive belt 118T | GATES 46T

powerMeter retailer:bikeexchange / derived absent from a 31-field spec table

availability retailer:bikeexchange / derived sizes 4: 4 stocked, 0 gone, 0 unread

seller retailer:bikeexchange / parse 40cm: M&M Bikes

ebike.motor retailer:bikeexchange / parse Bosch | Bosch Performance Line CX Smart System BDU38

ebike.motor.position retailer:bikeexchange / parse Mittelmotor

ebike.battery.capacityWh retailer:bikeexchange / parse 800 Wh

ebike.battery.integration retailer:bikeexchange / parse PowerTube

ebike.eDiscipline retailer:bikeexchange / parse shelf: E-Trekking

ebike.display retailer:bikeexchange / parse Display: Bosch Kiox 500

ebike.maxSystemWeightKg retailer:bikeexchange / parse Zulässiges Gesamtgewicht: 180 kg

field	source	evidence
brand	`retailer:bikeexchange` / parse	Corratec
model	`retailer:bikeexchange` / derived	Corratec Life CX8 Belt
modelYear	`retailer:bikeexchange` / parse	Jahr: 2026
category	`retailer:bikeexchange` / derived	retailer taxonomy
frameMaterial	`retailer:bikeexchange` / parse	Aluminium
suspension	`retailer:bikeexchange` / derived	suspension fork "SR SUNTOUR MOBIE34-D EQ 2CR 27.5" 15x110mm 100mm" and no rear shock in a 31-field spec table
fork	`retailer:bikeexchange` / parse	SR SUNTOUR MOBIE34-D EQ 2CR 27.5" 15x110mm 100mm
dropperPost	`retailer:bikeexchange` / derived	seatpost row "ERGOTEC Ray 31.6mm" names no dropper, in a 31-field spec table
beltDrive	`retailer:bikeexchange` / parse	GATES carbon drive belt 118T \| GATES 46T
powerMeter	`retailer:bikeexchange` / derived	absent from a 31-field spec table
availability	`retailer:bikeexchange` / derived	sizes 4: 4 stocked, 0 gone, 0 unread
seller	`retailer:bikeexchange` / parse	40cm: M&M Bikes
ebike.motor	`retailer:bikeexchange` / parse	Bosch \| Bosch Performance Line CX Smart System BDU38
ebike.motor.position	`retailer:bikeexchange` / parse	Mittelmotor
ebike.battery.capacityWh	`retailer:bikeexchange` / parse	800 Wh
ebike.battery.integration	`retailer:bikeexchange` / parse	PowerTube
ebike.eDiscipline	`retailer:bikeexchange` / parse	shelf: E-Trekking
ebike.display	`retailer:bikeexchange` / parse	Display: Bosch Kiox 500
ebike.maxSystemWeightKg	`retailer:bikeexchange` / parse	Zulässiges Gesamtgewicht: 180 kg

Warnings

info brake-actuation-unstated — The spec table says "Disc" without saying whether the disc brake is hydraulic or mechanical. Recorded as unknown; the two are not interchangeable to a buyer.
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": 0,
  "suspensionScore": 0,
  "weightAdjustment": 0,
  "equipmentValue": 16,
  "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.",
    "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": [
    "groupsetFamily",
    "wheelMaterial",
    "wheelTier",
    "brakes",
    "weightKg"
  ],
  "applied": [],
  "rejected": [],
  "notes": "The source names an Enviolo drivetrain, which is not included in the allowed groupset vocabulary. The wheel specification gives dimensions and a load rating but does not establish wheel material or a recognized wheelset model. The brakes are described as disc brakes, but the source does not explicitly establish hydraulic or mechanical operation. “Zulässiges Gesamtgewicht: 180 kg” is the permitted total system weight, not the complete-bike weight.",
  "raw": {
    "frameMaterial": {
      "value": "aluminium",
      "evidence": "Rahmenmaterial: Aluminium",
      "confidence": 1
    },
    "groupsetBrand": {
      "value": null,
      "evidence": null,
      "confidence": 1
    },
    "groupsetFamily": {
      "value": null,
      "evidence": null,
      "confidence": 1
    },
    "electronicShifting": {
      "value": "false",
      "evidence": "ENVIOLO MANUAL CONTROLLER TWIST PURE",
      "confidence": 0.95
    },
    "speeds": {
      "value": null,
      "evidence": null,
      "confidence": 1
    },
    "mixedGroupset": {
      "value": null,
      "evidence": null,
      "confidence": 1
    },
    "wheelMaterial": {
      "value": null,
      "evidence": null,
      "confidence": 1
    },
    "wheelTier": {
      "value": null,
      "evidence": null,
      "confidence": 1
    },
    "brakes": {
      "value": null,
      "evidence": null,
      "confidence": 0.95
    },
    "weightKg": {
      "value": null,
      "evidence": null,
      "confidence": 1
    },
    "powerMeter": {
      "value": null,
      "evidence": null,
      "confidence": 1
    },
    "notes": "The source names an Enviolo drivetrain, which is not included in the allowed groupset vocabulary. The wheel specification gives dimensions and a load rating but does not establish wheel material or a recognized wheelset model. The brakes are described as disc brakes, but the source does not explicitly establish hydraulic or mechanical operation. “Zulässiges Gesamtgewicht: 180 kg” is the permitted total system weight, not the complete-bike weight."
  }
}

Normalized record

{
  "id": "bikeexchange:corratec_life_cx8_belt_2026",
  "retailer": "bikeexchange",
  "retailerProductId": "corratec_life_cx8_belt_2026",
  "productUrl": "https://www.bikeexchange.de/de-DE/products/corratec_life_cx8_belt_2026?sku=COR_0000650173",
  "brand": "Corratec",
  "model": "Life CX8 Belt",
  "modelYear": 2026,
  "category": "e-bike",
  "categoryBasis": "route",
  "sourceCategory": "e-bike",
  "price": 4299,
  "originalPrice": 5499,
  "currency": "EUR",
  "discountPercent": 22,
  "frameMaterial": "aluminium",
  "frameModel": null,
  "frameTier": null,
  "groupsetBrand": null,
  "groupsetFamily": null,
  "groupsetGeneration": null,
  "electronicShifting": null,
  "speeds": null,
  "mixedGroupset": null,
  "groupsetComponents": null,
  "groupsetTierSpread": 0,
  "crank": "GATES 46T",
  "cassette": "GATES 22T",
  "brakes": "unknown",
  "brakePistons": null,
  "brakeTier": "unknown",
  "suspension": "front",
  "fork": {
    "make": "SR Suntour",
    "line": null,
    "tier": "unknown",
    "travelMm": 100
  },
  "rearShock": null,
  "dropperPost": false,
  "beltDrive": true,
  "hubDynamo": null,
  "rack": null,
  "mudguards": null,
  "chaincase": null,
  "kickstand": null,
  "lighting": null,
  "wheelSize": null,
  "wheelset": "584-25 15x110 / 12x148 up to 200Kg",
  "wheelMaterial": "unknown",
  "wheelTier": "unknown",
  "tyres": "SCHWALBE JOHNNY WATTS 60-584",
  "weightKg": null,
  "ebike": {
    "motor": {
      "text": "Bosch | Bosch Performance Line CX Smart System BDU38",
      "brand": "bosch",
      "model": null,
      "position": "mid",
      "torqueNm": null,
      "torqueSource": null,
      "ratedPowerW": null,
      "peakPowerW": null
    },
    "battery": {
      "text": "800 Wh | Bosch PowerTube 800 Horizontal",
      "capacityWh": 800,
      "count": 1,
      "integration": "integrated",
      "removable": null
    },
    "speedClass": "unknown",
    "rangeExtender": "unknown",
    "display": "Bosch Kiox 500",
    "abs": null,
    "autoShift": null,
    "statedRangeKm": null,
    "eDiscipline": "e-trekking",
    "eDisciplineBasis": "leaf",
    "frameShape": "unknown",
    "cargoType": "unknown",
    "maxSystemWeightKg": 180,
    "rackCapacityKg": null,
    "weightIncludesBattery": null
  },
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "40cm",
      "size": null,
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 4299,
      "seller": "M&M Bikes",
      "deliveryNote": "Reguläre Lieferzeit 10 Tage"
    },
    {
      "rawSize": "47cm",
      "size": "47",
      "sizeCm": 47,
      "inStock": true,
      "stockCount": null,
      "price": 4299,
      "seller": null,
      "deliveryNote": null
    },
    {
      "rawSize": "53cm",
      "size": "53",
      "sizeCm": 53,
      "inStock": true,
      "stockCount": null,
      "price": 4299,
      "seller": null,
      "deliveryNote": null
    },
    {
      "rawSize": "57cm",
      "size": "57",
      "sizeCm": 57,
      "inStock": true,
      "stockCount": null,
      "price": 4299,
      "seller": null,
      "deliveryNote": null
    }
  ],
  "seller": "M&M Bikes",
  "availability": "in-stock",
  "gtins": [
    "4043184847067"
  ],
  "imageUrl": "https://images.cdn.europe-west1.gcp.commercetools.com/078b97e9-ed31-4c81-baae-cdd44f3bf3c1/38a2f6a3a869b9fcfed0-NgPY40ji.png",
  "rawTitle": "Corratec Life CX8 Belt",
  "fetchedAt": "2026-09-26T06:26:02.585Z",
  "normalizationConfidence": 0.53,
  "warnings": [
    {
      "code": "brake-actuation-unstated",
      "message": "The spec table says \"Disc\" without saying whether the disc brake is hydraulic or mechanical. Recorded as unknown; the two are not interchangeable to a buyer.",
      "severity": "info"
    },
    {
      "code": "groupset-unknown",
      "message": "Groupset could not be established.",
      "severity": "high"
    },
    {
      "code": "wheel-material-unknown",
      "message": "Wheel material could not be established.",
      "severity": "info"
    }
  ],
  "ebikeAi": {
    "requested": [
      "motorModel",
      "speedClass",
      "frameShape"
    ],
    "applied": [],
    "rejected": [],
    "notes": "The source identifies the motor as \"Bosch Performance Line CX Smart System BDU38\", but this does not establish one exact motorModel from the permitted vocabulary. It does not specify the speed class, frame shape, or battery integration category.",
    "raw": {
      "motorBrand": {
        "value": "bosch",
        "evidence": "Motorhersteller: Bosch",
        "confidence": 1
      },
      "motorModel": {
        "value": null,
        "evidence": null,
        "confidence": 0
      },
      "batteryWh": {
        "value": "800",
        "evidence": "Akkukapazität: 800 Wh",
        "confidence": 1
      },
      "speedClass": {
        "value": null,
        "evidence": null,
        "confidence": 0
      },
      "batteryIntegration": {
        "value": null,
        "evidence": null,
        "confidence": 0
      },
      "frameShape": {
        "value": null,
        "evidence": null,
        "confidence": 0
      },
      "notes": "The source identifies the motor as \"Bosch Performance Line CX Smart System BDU38\", but this does not establish one exact motorModel from the permitted vocabulary. It does not specify the speed class, frame shape, or battery integration category."
    }
  }
}

Parsed specification table

{
  "Rahmenmaterial": "Aluminium",
  "Zulässiges Gesamtgewicht": "180 kg",
  "Bremse": "TEKTRO HD-M535 Disc Brakes",
  "Bremse vorne": "TEKTRO HD-M535 203mm",
  "Bremse hinten": "TEKTRO HD-M535 180mm",
  "Bremshebel": "ENVIOLO MANUAL CONTROLLER TWIST PURE",
  "Reifen hinten": "SCHWALBE JOHNNY WATTS 60-584",
  "Laufräder": "584-25 15x110 / 12x148 up to 200Kg",
  "Reifen vorne": "SCHWALBE JOHNNY WATTS 60-584",
  "Reifen": "SCHWALBE JOHNNY WATTS 60-584",
  "Vorbau": "ERGOTEC Swell RE 31.8 80/100mm",
  "Steuersatz": "Integrated Headset",
  "Lenker": "ERGOTEC Riser Bar 50 31.8mm 720mm 25 Deg Backsweep",
  "Display": "Bosch Kiox 500",
  "Akkukapazität": "800 Wh",
  "Motorhersteller": "Bosch",
  "Akku": "Bosch PowerTube 800 Horizontal",
  "Motor": "Bosch Performance Line CX Smart System BDU38",
  "Motorposition": "Mittelmotor",
  "Umwerfer hinten": "ENVIOLO TREKKING",
  "Kurbel": "GATES 46T",
  "Schalthebel": "ENVIOLO MANUAL CONTROLLER TWIST PURE",
  "Kassette": "GATES 22T",
  "Kette / Riemen": "GATES carbon drive belt 118T",
  "Sattel": "SQ Lab 621 ERGOLUX",
  "Sattelstütze": "ERGOTEC Ray 31.6mm",
  "Gabel Bauart": "Federgabel",
  "Federweg vorne": "100mm",
  "Gabelhersteller": "SR Suntour",
  "Gabel": "SR SUNTOUR MOBIE34-D EQ 2CR 27.5\" 15x110mm 100mm",
  "Jahr": "2026"
}

Raw adapter output

{
  "retailer": "bikeexchange",
  "retailerProductId": "corratec_life_cx8_belt_2026",
  "productUrl": "https://www.bikeexchange.de/de-DE/products/corratec_life_cx8_belt_2026?sku=COR_0000650173",
  "extractionMethod": "embedded-json",
  "sourceCategory": "e-bike",
  "rawTitle": "Corratec Life CX8 Belt",
  "rawBrand": "Corratec",
  "price": 4299,
  "originalPrice": 5499,
  "currency": "EUR",
  "imageUrl": "https://images.cdn.europe-west1.gcp.commercetools.com/078b97e9-ed31-4c81-baae-cdd44f3bf3c1/38a2f6a3a869b9fcfed0-NgPY40ji.png",
  "rawSpecifications": {
    "Rahmenmaterial": "Aluminium",
    "Zulässiges Gesamtgewicht": "180 kg",
    "Bremse": "TEKTRO HD-M535 Disc Brakes",
    "Bremse vorne": "TEKTRO HD-M535 203mm",
    "Bremse hinten": "TEKTRO HD-M535 180mm",
    "Bremshebel": "ENVIOLO MANUAL CONTROLLER TWIST PURE",
    "Reifen hinten": "SCHWALBE JOHNNY WATTS 60-584",
    "Laufräder": "584-25 15x110 / 12x148 up to 200Kg",
    "Reifen vorne": "SCHWALBE JOHNNY WATTS 60-584",
    "Reifen": "SCHWALBE JOHNNY WATTS 60-584",
    "Vorbau": "ERGOTEC Swell RE 31.8 80/100mm",
    "Steuersatz": "Integrated Headset",
    "Lenker": "ERGOTEC Riser Bar 50 31.8mm 720mm 25 Deg Backsweep",
    "Display": "Bosch Kiox 500",
    "Akkukapazität": "800 Wh",
    "Motorhersteller": "Bosch",
    "Akku": "Bosch PowerTube 800 Horizontal",
    "Motor": "Bosch Performance Line CX Smart System BDU38",
    "Motorposition": "Mittelmotor",
    "Umwerfer hinten": "ENVIOLO TREKKING",
    "Kurbel": "GATES 46T",
    "Schalthebel": "ENVIOLO MANUAL CONTROLLER TWIST PURE",
    "Kassette": "GATES 22T",
    "Kette / Riemen": "GATES carbon drive belt 118T",
    "Sattel": "SQ Lab 621 ERGOLUX",
    "Sattelstütze": "ERGOTEC Ray 31.6mm",
    "Gabel Bauart": "Federgabel",
    "Federweg vorne": "100mm",
    "Gabelhersteller": "SR Suntour",
    "Gabel": "SR SUNTOUR MOBIE34-D EQ 2CR 27.5\" 15x110mm 100mm",
    "Jahr": "2026"
  },
  "rawFeatures": [
    "Bosch",
    "800wh",
    "Nabenschaltung",
    "Beschreibung"
  ],
  "rawSizes": [
    {
      "rawSize": "40cm",
      "size": null,
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 4299,
      "seller": "M&M Bikes",
      "deliveryNote": "Reguläre Lieferzeit 10 Tage"
    },
    {
      "rawSize": "47cm",
      "size": "47",
      "sizeCm": 47,
      "inStock": true,
      "stockCount": null,
      "price": 4299,
      "seller": null,
      "deliveryNote": null
    },
    {
      "rawSize": "53cm",
      "size": "53",
      "sizeCm": 53,
      "inStock": true,
      "stockCount": null,
      "price": 4299,
      "seller": null,
      "deliveryNote": null
    },
    {
      "rawSize": "57cm",
      "size": "57",
      "sizeCm": 57,
      "inStock": true,
      "stockCount": null,
      "price": 4299,
      "seller": null,
      "deliveryNote": null
    }
  ],
  "availabilityText": "sizes 4: 4 stocked, 0 gone, 0 unread",
  "fetchedAt": "2026-09-26T06:26:02.585Z",
  "sourceMeta": {
    "skus": [
      "4043184847067"
    ],
    "shopSkus": [
      "COR_0000650173",
      "COR_0000650173",
      "COR_0000650174",
      "COR_0000650175",
      "COR_0000650176"
    ],
    "seller": "M&M Bikes",
    "sellerOfSize": "40cm",
    "sellerId": "fec2af50-4229-4a10-897b-4c6bfb376742",
    "storeKey": "store_01KCRTWN5CHE1NST7G2QD925E3_eur",
    "storeCity": "Bad Cannstatt",
    "storeCountry": "DE",
    "storeDelivers": true,
    "storeClickAndCollect": true,
    "storeReservation": true,
    "storeDeliveryTime": "P10D",
    "shippingPrice": 70,
    "hasMoreSellers": false,
    "condition": "NEW",
    "ctProductId": "f8a5679d-5b93-4620-bc55-84fe6399f2aa",
    "shopCategory": "E-Trekking",
    "colourCount": 2,
    "fetchedSku": "COR_0000650173"
  },
  "listingPath": [
    "E-Bikes",
    "E-Trekking"
  ]
}

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