Corratec Life CX8 Belt Wave silver / dark grey / red

bikes-de:corratec-life-cx8-belt-2026 · source URL · confidence 0.53 · GTIN 4043184847036, 4043184847050, 4043184847067, 4043184847074

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
40 cm \| (27,5")	—	40 cm	exact scale	stated by the retailer	no	listing price	40 cm \| (27,5")
47 cm \| (27,5")	—	47 cm	exact scale	stated by the retailer	no	listing price	47 cm \| (27,5")
53 cm \| (27,5")	—	53 cm	exact scale	stated by the retailer	yes	€5.499	53 cm \| (27,5")
57 cm \| (27,5")	—	57 cm	exact scale	stated by the retailer	no	listing price	57 cm \| (27,5")

retailer label

alpha

comparable cm

match

mapping

in stock

variant price

evidence

40 cm | (27,5")

—

40 cm

exact scale

stated by the retailer

listing price

40 cm | (27,5")

47 cm | (27,5")

—

47 cm

exact scale

stated by the retailer

listing price

47 cm | (27,5")

53 cm | (27,5")

—

53 cm

exact scale

stated by the retailer

yes

€5.499

53 cm | (27,5")

57 cm | (27,5")

—

57 cm

exact scale

stated by the retailer

listing price

57 cm | (27,5")

A shopper asking for: 54 → 53 cm | (27,5") in stock · 56 → 57 cm | (27,5") fits but sold out · 58 → 57 cm | (27,5") fits but sold out · 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:bikes-de / parse Corratec

model retailer:bikes-de / derived Corratec Life CX8 Belt Wave silver / dark grey / red

modelYear retailer:bikes-de / parse Jahr: 2026

category retailer:bikes-de / derived retailer taxonomy

frameMaterial retailer:bikes-de / parse Aluminium

suspension retailer:bikes-de / derived suspension fork "SR SUNTOUR MOBIE34-D EQ 2CR 27.5" 15x110mm 100mm" and no rear shock in a 37-field spec table

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

dropperPost retailer:bikes-de / derived seatpost row "ERGOTEC Ray 31.6mm" names no dropper, in a 37-field spec table

beltDrive retailer:bikes-de / parse GATES carbon drive belt 118T | GATES 46T

rack retailer:bikes-de / parse ALU

mudguards retailer:bikes-de / parse Kunststoff

lighting retailer:bikes-de / parse LED

wheelSize retailer:bikes-de / parse 27.5

powerMeter retailer:bikes-de / derived absent from a 37-field spec table

availability retailer:bikes-de / derived 1 of 4 frame sizes offered for shipping by a bikes.de dealer

ebike.motor retailer:bikes-de / parse Bosch Performance Line CX Smart System BDU38

ebike.battery.capacityWh retailer:bikes-de / parse Akku-Kapazität (Wh): 800

ebike.battery.integration retailer:bikes-de / parse PowerTube

ebike.speedClass retailer:bikes-de / parse Motor-Unterstützung: bis 25 km/h

ebike.eDiscipline retailer:bikes-de / parse shelf: E-Citybikes

ebike.display retailer:bikes-de / parse Display: Bosch Kiox 500

ebike.maxSystemWeightKg retailer:bikes-de / parse Zulässiges Gesamtgewicht: 180

ebike.frameShape retailer:bikes-de / parse Wave

field	source	evidence
brand	`retailer:bikes-de` / parse	Corratec
model	`retailer:bikes-de` / derived	Corratec Life CX8 Belt Wave silver / dark grey / red
modelYear	`retailer:bikes-de` / parse	Jahr: 2026
category	`retailer:bikes-de` / derived	retailer taxonomy
frameMaterial	`retailer:bikes-de` / parse	Aluminium
suspension	`retailer:bikes-de` / derived	suspension fork "SR SUNTOUR MOBIE34-D EQ 2CR 27.5" 15x110mm 100mm" and no rear shock in a 37-field spec table
fork	`retailer:bikes-de` / parse	SR SUNTOUR MOBIE34-D EQ 2CR 27.5" 15x110mm 100mm
dropperPost	`retailer:bikes-de` / derived	seatpost row "ERGOTEC Ray 31.6mm" names no dropper, in a 37-field spec table
beltDrive	`retailer:bikes-de` / parse	GATES carbon drive belt 118T \| GATES 46T
rack	`retailer:bikes-de` / parse	ALU
mudguards	`retailer:bikes-de` / parse	Kunststoff
lighting	`retailer:bikes-de` / parse	LED
wheelSize	`retailer:bikes-de` / parse	27.5
powerMeter	`retailer:bikes-de` / derived	absent from a 37-field spec table
availability	`retailer:bikes-de` / derived	1 of 4 frame sizes offered for shipping by a bikes.de dealer
ebike.motor	`retailer:bikes-de` / parse	Bosch Performance Line CX Smart System BDU38
ebike.battery.capacityWh	`retailer:bikes-de` / parse	Akku-Kapazität (Wh): 800
ebike.battery.integration	`retailer:bikes-de` / parse	PowerTube
ebike.speedClass	`retailer:bikes-de` / parse	Motor-Unterstützung: bis 25 km/h
ebike.eDiscipline	`retailer:bikes-de` / parse	shelf: E-Citybikes
ebike.display	`retailer:bikes-de` / parse	Display: Bosch Kiox 500
ebike.maxSystemWeightKg	`retailer:bikes-de` / parse	Zulässiges Gesamtgewicht: 180
ebike.frameShape	`retailer:bikes-de` / parse	Wave

Warnings

info single-size-only — Only one size is in stock (53 cm | (27,5")).
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 identifies an enviolo manual hub-gear system, but enviolo is not in the permitted groupset vocabulary. Wheel material and wheelset model are not stated. The brake entries identify brake models and separate brake discs, but do not explicitly establish hydraulic or mechanical operation. The source gives \"Gewicht: 28.25\" without a unit, so weightKg cannot be established deterministically.",
  "raw": {
    "frameMaterial": {
      "value": "aluminium",
      "evidence": "Rahmenmaterial lt. Hersteller: Aluminium",
      "confidence": 1
    },
    "groupsetBrand": {
      "value": null,
      "evidence": null,
      "confidence": 1
    },
    "groupsetFamily": {
      "value": null,
      "evidence": null,
      "confidence": 1
    },
    "electronicShifting": {
      "value": "false",
      "evidence": "Schalthebel: ENVIOLO MANUAL CONTROLLER TWIST PURE",
      "confidence": 0.98
    },
    "speeds": {
      "value": null,
      "evidence": null,
      "confidence": 1
    },
    "mixedGroupset": {
      "value": "false",
      "evidence": "Schaltungstyp: Nabenschaltung",
      "confidence": 0.8
    },
    "wheelMaterial": {
      "value": null,
      "evidence": null,
      "confidence": 1
    },
    "wheelTier": {
      "value": null,
      "evidence": null,
      "confidence": 1
    },
    "brakes": {
      "value": null,
      "evidence": null,
      "confidence": 1
    },
    "weightKg": {
      "value": null,
      "evidence": null,
      "confidence": 1
    },
    "powerMeter": {
      "value": null,
      "evidence": null,
      "confidence": 1
    },
    "notes": "The source identifies an enviolo manual hub-gear system, but enviolo is not in the permitted groupset vocabulary. Wheel material and wheelset model are not stated. The brake entries identify brake models and separate brake discs, but do not explicitly establish hydraulic or mechanical operation. The source gives \"Gewicht: 28.25\" without a unit, so weightKg cannot be established deterministically."
  }
}

Normalized record

{
  "id": "bikes-de:corratec-life-cx8-belt-2026",
  "retailer": "bikes-de",
  "retailerProductId": "corratec-life-cx8-belt-2026",
  "productUrl": "https://www.bikes.de/shop/e-bikes/marke.corratec/corratec-life-cx8-belt-2026/",
  "brand": "Corratec",
  "model": "Life CX8 Belt Wave silver / dark grey / red",
  "modelYear": 2026,
  "category": "e-bike",
  "categoryBasis": "route",
  "sourceCategory": "e-bike",
  "price": 5499,
  "originalPrice": null,
  "currency": "EUR",
  "discountPercent": null,
  "frameMaterial": "aluminium",
  "frameModel": null,
  "frameTier": null,
  "groupsetBrand": null,
  "groupsetFamily": null,
  "groupsetGeneration": null,
  "electronicShifting": null,
  "speeds": null,
  "mixedGroupset": false,
  "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": true,
  "mudguards": true,
  "chaincase": null,
  "kickstand": null,
  "lighting": true,
  "wheelSize": "27.5",
  "wheelset": null,
  "wheelMaterial": "unknown",
  "wheelTier": "unknown",
  "tyres": "VR: SCHWALBE JOHNNY WATTS 60-584, HR: SCHWALBE JOHNNY WATTS 60-584",
  "weightKg": null,
  "ebike": {
    "motor": {
      "text": "Bosch Performance Line CX Smart System BDU38",
      "brand": "bosch",
      "model": null,
      "position": "unknown",
      "torqueNm": null,
      "torqueSource": null,
      "ratedPowerW": null,
      "peakPowerW": null
    },
    "battery": {
      "text": "Bosch PowerTube 800 Horizontal | 800",
      "capacityWh": 800,
      "count": 1,
      "integration": "integrated",
      "removable": null
    },
    "speedClass": "pedelec-25",
    "rangeExtender": "unknown",
    "display": "Bosch Kiox 500",
    "abs": null,
    "autoShift": null,
    "statedRangeKm": null,
    "eDiscipline": "e-city",
    "eDisciplineBasis": "leaf",
    "frameShape": "step-through",
    "cargoType": "unknown",
    "maxSystemWeightKg": 180,
    "rackCapacityKg": null,
    "weightIncludesBattery": null
  },
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "40 cm | (27,5\")",
      "size": null,
      "sizeCm": null,
      "inStock": false,
      "stockCount": null,
      "price": null
    },
    {
      "rawSize": "47 cm | (27,5\")",
      "size": "47",
      "sizeCm": 47,
      "inStock": false,
      "stockCount": null,
      "price": null
    },
    {
      "rawSize": "53 cm | (27,5\")",
      "size": "53",
      "sizeCm": 53,
      "inStock": true,
      "stockCount": null,
      "price": 5499
    },
    {
      "rawSize": "57 cm | (27,5\")",
      "size": "57",
      "sizeCm": 57,
      "inStock": false,
      "stockCount": null,
      "price": null
    }
  ],
  "seller": null,
  "availability": "limited",
  "gtins": [
    "4043184847036",
    "4043184847050",
    "4043184847067",
    "4043184847074"
  ],
  "imageUrl": "https://bikes-opt.b-cdn.net/corratec/2026/3070020_01.jpg",
  "rawTitle": "Corratec Life CX8 Belt Wave silver / dark grey / red",
  "fetchedAt": "2026-09-26T07:27:13.053Z",
  "normalizationConfidence": 0.53,
  "warnings": [
    {
      "code": "single-size-only",
      "message": "Only one size is in stock (53 cm | (27,5\")).",
      "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"
    ],
    "applied": [],
    "rejected": [],
    "notes": "The source identifies the motor as Bosch Performance Line CX Smart System BDU38, but does not establish one exact motorModel from the permitted vocabulary. Battery integration is not stated deterministically.",
    "raw": {
      "motorBrand": {
        "value": "bosch",
        "evidence": "Motor: Bosch Performance Line CX Smart System BDU38",
        "confidence": 1
      },
      "motorModel": {
        "value": null,
        "evidence": null,
        "confidence": 1
      },
      "batteryWh": {
        "value": "800",
        "evidence": "Akku-Kapazität (Wh): 800",
        "confidence": 1
      },
      "speedClass": {
        "value": "pedelec-25",
        "evidence": "Motor-Unterstützung: bis 25 km/h",
        "confidence": 1
      },
      "batteryIntegration": {
        "value": null,
        "evidence": null,
        "confidence": 1
      },
      "frameShape": {
        "value": "step-through",
        "evidence": "Rahmenform lt. Hersteller: Wave",
        "confidence": 1
      },
      "notes": "The source identifies the motor as Bosch Performance Line CX Smart System BDU38, but does not establish one exact motorModel from the permitted vocabulary. Battery integration is not stated deterministically."
    }
  }
}

Parsed specification table

{
  "Akku": "Bosch PowerTube 800 Horizontal",
  "Akku-Kapazität (Wh)": "800",
  "Motor": "Bosch Performance Line CX Smart System BDU38",
  "Motor-Unterstützung": "bis 25 km/h",
  "Display": "Bosch Kiox 500",
  "Rahmenmaterial lt. Hersteller": "Aluminium",
  "Gabel": "SR SUNTOUR MOBIE34-D EQ 2CR 27.5\" 15x110mm 100mm",
  "Gabel Federweg (mm)": "100",
  "Schaltungstyp": "Nabenschaltung",
  "Schalthebel": "ENVIOLO MANUAL CONTROLLER TWIST PURE",
  "Zahnkranz": "GATES 22T",
  "Bremse": "VR: TEKTRO HD-M535 203mm, HR: TEKTRO HD-M535 180mm",
  "Bremshebel": "TEKTRO HD-M535",
  "Bremsscheiben": "VR: 203 mm, HR: 180 mm",
  "Laufradgröße": "27,5 Zoll",
  "Reifen": "VR: SCHWALBE JOHNNY WATTS 60-584, HR: SCHWALBE JOHNNY WATTS 60-584",
  "Kette": "GATES carbon drive belt 118T",
  "Kurbelsatz": "GATES 46T",
  "Lenker": "ERGOTEC Riser Bar 50 31.8mm 720mm 25 Deg Backsweep",
  "Vorbau": "ERGOTEC Swell RE 31.8 80/100mm",
  "Sattel": "SQ Lab 621 ERGOLUX",
  "Sattelstütze": "ERGOTEC Ray 31.6mm",
  "Straßenzulassung": "Ja",
  "Frontleuchte": "LED",
  "Rückleuchte": "LED",
  "Gepäckträger": "ALU",
  "Schutzbleche": "Kunststoff",
  "Marke": "Corratec",
  "EAN": "4043184847067",
  "Hersteller Artikelnummer": "BK31351-40C1B31",
  "Modellserie Bezeichnung": "Life CX8 Belt",
  "Rahmenform lt. Hersteller": "Wave",
  "Markenfarbe": "dark grey / silver / red",
  "Rahmenhöhe": "40 cm | (27,5\")",
  "Jahr": "2026",
  "Gewicht": "28.25",
  "Zulässiges Gesamtgewicht": "180"
}

Raw adapter output

{
  "retailer": "bikes-de",
  "retailerProductId": "corratec-life-cx8-belt-2026",
  "productUrl": "https://www.bikes.de/shop/e-bikes/marke.corratec/corratec-life-cx8-belt-2026/",
  "extractionMethod": "server-html",
  "sourceCategory": "e-bike",
  "rawTitle": "Corratec Life CX8 Belt Wave silver / dark grey / red",
  "rawBrand": "Corratec",
  "price": 5499,
  "originalPrice": null,
  "currency": "EUR",
  "imageUrl": "https://bikes-opt.b-cdn.net/corratec/2026/3070020_01.jpg",
  "rawSpecifications": {
    "Akku": "Bosch PowerTube 800 Horizontal",
    "Akku-Kapazität (Wh)": "800",
    "Motor": "Bosch Performance Line CX Smart System BDU38",
    "Motor-Unterstützung": "bis 25 km/h",
    "Display": "Bosch Kiox 500",
    "Rahmenmaterial lt. Hersteller": "Aluminium",
    "Gabel": "SR SUNTOUR MOBIE34-D EQ 2CR 27.5\" 15x110mm 100mm",
    "Gabel Federweg (mm)": "100",
    "Schaltungstyp": "Nabenschaltung",
    "Schalthebel": "ENVIOLO MANUAL CONTROLLER TWIST PURE",
    "Zahnkranz": "GATES 22T",
    "Bremse": "VR: TEKTRO HD-M535 203mm, HR: TEKTRO HD-M535 180mm",
    "Bremshebel": "TEKTRO HD-M535",
    "Bremsscheiben": "VR: 203 mm, HR: 180 mm",
    "Laufradgröße": "27,5 Zoll",
    "Reifen": "VR: SCHWALBE JOHNNY WATTS 60-584, HR: SCHWALBE JOHNNY WATTS 60-584",
    "Kette": "GATES carbon drive belt 118T",
    "Kurbelsatz": "GATES 46T",
    "Lenker": "ERGOTEC Riser Bar 50 31.8mm 720mm 25 Deg Backsweep",
    "Vorbau": "ERGOTEC Swell RE 31.8 80/100mm",
    "Sattel": "SQ Lab 621 ERGOLUX",
    "Sattelstütze": "ERGOTEC Ray 31.6mm",
    "Straßenzulassung": "Ja",
    "Frontleuchte": "LED",
    "Rückleuchte": "LED",
    "Gepäckträger": "ALU",
    "Schutzbleche": "Kunststoff",
    "Marke": "Corratec",
    "EAN": "4043184847067",
    "Hersteller Artikelnummer": "BK31351-40C1B31",
    "Modellserie Bezeichnung": "Life CX8 Belt",
    "Rahmenform lt. Hersteller": "Wave",
    "Markenfarbe": "dark grey / silver / red",
    "Rahmenhöhe": "40 cm | (27,5\")",
    "Jahr": "2026",
    "Gewicht": "28.25",
    "Zulässiges Gesamtgewicht": "180"
  },
  "rawFeatures": [],
  "rawSizes": [
    {
      "rawSize": "40 cm | (27,5\")",
      "size": null,
      "sizeCm": null,
      "inStock": false,
      "stockCount": null,
      "price": null
    },
    {
      "rawSize": "47 cm | (27,5\")",
      "size": "47",
      "sizeCm": 47,
      "inStock": false,
      "stockCount": null,
      "price": null
    },
    {
      "rawSize": "53 cm | (27,5\")",
      "size": "53",
      "sizeCm": 53,
      "inStock": true,
      "stockCount": null,
      "price": 5499
    },
    {
      "rawSize": "57 cm | (27,5\")",
      "size": "57",
      "sizeCm": 57,
      "inStock": false,
      "stockCount": null,
      "price": null
    }
  ],
  "availabilityText": "1 of 4 frame sizes offered for shipping by a bikes.de dealer",
  "fetchedAt": "2026-09-26T07:27:13.053Z",
  "sourceMeta": {
    "dealers": [
      "e-motion e-Bike Welt Heidelberg"
    ],
    "listingRows": 1,
    "articleNumbers": [
      "3070017"
    ],
    "skus": [
      "4043184847050",
      "4043184847074",
      "4043184847036"
    ],
    "leafCategory": "E-Citybikes"
  },
  "listingPath": [
    "E-Bikes",
    "E-City",
    "E-Citybikes"
  ]
}

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