i:SY E5 ZR F E-Bike Kompaktrad 20" grau

zweirad-stadler:i-sy-e5-zr-f-e-bike-kompaktrad-20-grau · source URL · confidence 0.83

Eligibility

Cannot win: 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
47 cm (Onesize)	—	—	unknown	unsupported	yes	listing price	—

retailer label

alpha

comparable cm

match

mapping

in stock

variant price

evidence

47 cm (Onesize)

—

unknown

unsupported

yes

listing price

—

mapping	unsupported
reason	"47 cm (Onesize)" could not be read as a frame size.

mapping

unsupported

reason

"47 cm (Onesize)" could not be read as a frame size.

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

Identity

Canonical configuration: I:sy | E5 ZR F E-Bike Kompaktrad 20" | Nexus
Confidence: medium

brand exact (I:sy)
model normalized to "e5 zr f e kompaktrad 20"
groupset family exact (Nexus)
model year unavailable on every listing
3 listings across 1 retailer
downgraded to medium: no shared GTIN, and no listing states a model year

retailer	price	sizes in stock
Zweirad Stadler	€3.798	47 cm	debug
Zweirad Stadler	€3.798	47 cm	debug
Zweirad Stadler	€4.199	47 cm (Onesize)	debug

retailer

price

sizes in stock

Zweirad Stadler

€3.798

47 cm

debug

Zweirad Stadler

€3.798

47 cm

debug

Zweirad Stadler

€4.199

47 cm (Onesize)

debug

Provenance — why we believe each fact

field source evidence

brand retailer:zweirad-stadler / parse i:SY

model retailer:zweirad-stadler / derived i:SY E5 ZR F E-Bike Kompaktrad 20" grau

category retailer:zweirad-stadler / parse E-Bike

frameMaterial retailer:zweirad-stadler / parse Aluminium

groupsetFamily retailer:zweirad-stadler / dictionary SHIMANO Nexus Revo Shifter

electronicShifting retailer:zweirad-stadler / derived SHIMANO Nexus Revo Shifter

speeds retailer:zweirad-stadler / parse 5-Gang

brakes retailer:zweirad-stadler / parse Hydraulische Scheibenbremsen

brakePistons retailer:zweirad-stadler / parse 4 Kolben

suspension retailer:zweirad-stadler / derived Starrgabel

fork retailer:zweirad-stadler / dictionary Starrgabel

dropperPost retailer:zweirad-stadler / derived seatpost row "by.Schulz G2 Short Travel, ⌀ 34,9 mm" names no dropper, in a 43-field spec table

rack retailer:zweirad-stadler / parse i:SY Carrier MonkeyLoad ready

kickstand retailer:zweirad-stadler / parse PLETSCHER Kickstand Comp40 Flex

lighting retailer:zweirad-stadler / parse FUXON FF-100EB, 100 Lux LED mit Fernlicht

wheelSize retailer:zweirad-stadler / parse 20

weightKg retailer:zweirad-stadler / parse Gewicht: ca. 23,9 kg

powerMeter retailer:zweirad-stadler / derived absent from a 43-field spec table

availability retailer:zweirad-stadler / derived 1 of 1 sizes orderable

ebike.motor retailer:zweirad-stadler / parse Bosch | Bosch Performance Line

ebike.motor.position retailer:zweirad-stadler / parse Mittelmotor

ebike.motor.torqueNm retailer:zweirad-stadler / parse 75 Nm

ebike.eDiscipline retailer:zweirad-stadler / parse shelf: E-Kompaktrad

ebike.display retailer:zweirad-stadler / parse Display: Bosch Intuvia 100

ebike.maxSystemWeightKg retailer:zweirad-stadler / parse zul. Gesamtgewicht: max. 150 kg

ebike.battery.capacityWh ai / ai (1) Kapazität: 545 Wh

field	source	evidence
brand	`retailer:zweirad-stadler` / parse	i:SY
model	`retailer:zweirad-stadler` / derived	i:SY E5 ZR F E-Bike Kompaktrad 20" grau
category	`retailer:zweirad-stadler` / parse	E-Bike
frameMaterial	`retailer:zweirad-stadler` / parse	Aluminium
groupsetFamily	`retailer:zweirad-stadler` / dictionary	SHIMANO Nexus Revo Shifter
electronicShifting	`retailer:zweirad-stadler` / derived	SHIMANO Nexus Revo Shifter
speeds	`retailer:zweirad-stadler` / parse	5-Gang
brakes	`retailer:zweirad-stadler` / parse	Hydraulische Scheibenbremsen
brakePistons	`retailer:zweirad-stadler` / parse	4 Kolben
suspension	`retailer:zweirad-stadler` / derived	Starrgabel
fork	`retailer:zweirad-stadler` / dictionary	Starrgabel
dropperPost	`retailer:zweirad-stadler` / derived	seatpost row "by.Schulz G2 Short Travel, ⌀ 34,9 mm" names no dropper, in a 43-field spec table
rack	`retailer:zweirad-stadler` / parse	i:SY Carrier MonkeyLoad ready
kickstand	`retailer:zweirad-stadler` / parse	PLETSCHER Kickstand Comp40 Flex
lighting	`retailer:zweirad-stadler` / parse	FUXON FF-100EB, 100 Lux LED mit Fernlicht
wheelSize	`retailer:zweirad-stadler` / parse	20
weightKg	`retailer:zweirad-stadler` / parse	Gewicht: ca. 23,9 kg
powerMeter	`retailer:zweirad-stadler` / derived	absent from a 43-field spec table
availability	`retailer:zweirad-stadler` / derived	1 of 1 sizes orderable
ebike.motor	`retailer:zweirad-stadler` / parse	Bosch \| Bosch Performance Line
ebike.motor.position	`retailer:zweirad-stadler` / parse	Mittelmotor
ebike.motor.torqueNm	`retailer:zweirad-stadler` / parse	75 Nm
ebike.eDiscipline	`retailer:zweirad-stadler` / parse	shelf: E-Kompaktrad
ebike.display	`retailer:zweirad-stadler` / parse	Display: Bosch Intuvia 100
ebike.maxSystemWeightKg	`retailer:zweirad-stadler` / parse	zul. Gesamtgewicht: max. 150 kg
ebike.battery.capacityWh	`ai` / ai (1)	Kapazität: 545 Wh

Warnings

info single-size-only — Only one size is in stock (47 cm (Onesize)).
info wheel-material-unknown — Wheel material could not be established.

Score breakdown

{
  "frameScore": 11,
  "drivetrainScore": 0,
  "wheelScore": 5,
  "extrasScore": 0,
  "suspensionScore": 2,
  "weightAdjustment": -3,
  "equipmentValue": 15,
  "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.",
    "Brakes \"hydraulic-disc\" = 0, the baseline for mtb-hardtail.",
    "23.9 kg vs 14.4 kg mtb-hardtail reference = -3.",
    "Fork \"rigid\" +2 (0 mm travel, which is not scored)."
  ],
  "marketPrice": null,
  "valueScore": null,
  "savingsVsMarket": null
}

AI normalization

{
  "requested": [
    "wheelMaterial",
    "wheelTier"
  ],
  "applied": [],
  "rejected": [],
  "notes": "The source names the RYDE Andra 40 Disc rim but does not establish its material; wheel tier cannot be assigned deterministically.",
  "raw": {
    "frameMaterial": {
      "value": "aluminium",
      "evidence": "Material: Aluminium",
      "confidence": 1
    },
    "groupsetBrand": {
      "value": "Shimano",
      "evidence": "SHIMANO Nexus Revo Shifter",
      "confidence": 1
    },
    "groupsetFamily": {
      "value": "Nexus",
      "evidence": "5-Gang Shimano Nexus Nabenschaltung",
      "confidence": 1
    },
    "electronicShifting": {
      "value": "false",
      "evidence": "SHIMANO Nexus Revo Shifter",
      "confidence": 0.98
    },
    "speeds": {
      "value": "5",
      "evidence": "Gänge: 5-Gang",
      "confidence": 1
    },
    "mixedGroupset": {
      "value": "false",
      "evidence": "5-Gang Shimano Nexus Nabenschaltung",
      "confidence": 0.9
    },
    "wheelMaterial": {
      "value": null,
      "evidence": null,
      "confidence": 0
    },
    "wheelTier": {
      "value": null,
      "evidence": null,
      "confidence": 0
    },
    "brakes": {
      "value": "hydraulic-disc",
      "evidence": "Tektro Hydraulische Scheibenbremsen",
      "confidence": 1
    },
    "weightKg": {
      "value": "23.9",
      "evidence": "Gewicht: ca. 23,9 kg",
      "confidence": 1
    },
    "powerMeter": {
      "value": null,
      "evidence": null,
      "confidence": 0
    },
    "notes": "The source names the RYDE Andra 40 Disc rim but does not establish its material; wheel tier cannot be assigned deterministically."
  }
}

Normalized record

{
  "id": "zweirad-stadler:i-sy-e5-zr-f-e-bike-kompaktrad-20-grau",
  "retailer": "zweirad-stadler",
  "retailerProductId": "i-sy-e5-zr-f-e-bike-kompaktrad-20-grau",
  "productUrl": "https://shop.zweirad-stadler.de/fahrrad-shop/e-bikes/e-kompaktrad/i-sy-e5-zr-f-e-bike-kompaktrad-20-grau.html",
  "brand": "I:sy",
  "model": "E5 ZR F E-Bike Kompaktrad 20\" grau",
  "modelYear": null,
  "category": "e-bike",
  "categoryBasis": "stated",
  "sourceCategory": "e-bike",
  "price": 4199,
  "originalPrice": null,
  "currency": "EUR",
  "discountPercent": null,
  "frameMaterial": "aluminium",
  "frameModel": null,
  "frameTier": null,
  "groupsetBrand": "Shimano",
  "groupsetFamily": "Nexus",
  "groupsetGeneration": null,
  "electronicShifting": false,
  "speeds": 5,
  "mixedGroupset": false,
  "groupsetComponents": {
    "shifters": "Nexus"
  },
  "groupsetTierSpread": 0,
  "crank": "i:SY E-Bike Kurbel",
  "cassette": "28 T",
  "brakes": "hydraulic-disc",
  "brakePistons": 4,
  "brakeTier": "unknown",
  "suspension": "none",
  "fork": {
    "make": null,
    "line": null,
    "tier": "rigid",
    "travelMm": 0
  },
  "rearShock": null,
  "dropperPost": false,
  "beltDrive": null,
  "hubDynamo": null,
  "rack": true,
  "mudguards": null,
  "chaincase": null,
  "kickstand": true,
  "lighting": true,
  "wheelSize": "other",
  "wheelset": "RYDE Andra 40 Disc, 32 H | SHIMANO Deore HB-M5100 | Shimano Inter-5E, SG-C7000-5D",
  "wheelMaterial": "unknown",
  "wheelTier": "unknown",
  "tyres": "SCHWALBE Pick Up, Super Defense",
  "weightKg": 23.9,
  "ebike": {
    "motor": {
      "text": "Bosch | Bosch Performance Line",
      "brand": "bosch",
      "model": null,
      "position": "mid",
      "torqueNm": 75,
      "torqueSource": "retailer",
      "ratedPowerW": null,
      "peakPowerW": null
    },
    "battery": {
      "text": null,
      "capacityWh": 545,
      "count": null,
      "integration": "unknown",
      "removable": null
    },
    "speedClass": "unknown",
    "rangeExtender": "unknown",
    "display": "Bosch Intuvia 100",
    "abs": null,
    "autoShift": null,
    "statedRangeKm": null,
    "eDiscipline": "e-compact",
    "eDisciplineBasis": "leaf",
    "frameShape": "unknown",
    "cargoType": "unknown",
    "maxSystemWeightKg": 150,
    "rackCapacityKg": null,
    "weightIncludesBattery": null
  },
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "47 cm (Onesize)",
      "size": "47",
      "sizeCm": 47,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "4-8 Werktage"
    }
  ],
  "seller": null,
  "availability": "limited",
  "gtins": [],
  "imageUrl": "https://shop.zweirad-stadler.de/out/pictures/generated/product/1/1500_1500_100/isy-e5-zr-f-perf-545-grau-20-kompaktrad-134805-a.jpg",
  "rawTitle": "i:SY E5 ZR F E-Bike Kompaktrad 20\" grau",
  "fetchedAt": "2026-09-26T08:25:22.267Z",
  "normalizationConfidence": 0.83,
  "warnings": [
    {
      "code": "single-size-only",
      "message": "Only one size is in stock (47 cm (Onesize)).",
      "severity": "info"
    },
    {
      "code": "wheel-material-unknown",
      "message": "Wheel material could not be established.",
      "severity": "info"
    }
  ],
  "ebikeAi": {
    "requested": [
      "motorModel",
      "batteryWh",
      "speedClass",
      "batteryIntegration",
      "frameShape"
    ],
    "applied": [
      "batteryWh"
    ],
    "rejected": [],
    "notes": "The source names Bosch Performance Line but does not establish an exact motor model. It gives the frame form as \"Kompakt\", which does not deterministically map to diamond, trapeze, or step-through. Speed class and battery integration are not stated.",
    "raw": {
      "motorBrand": {
        "value": "bosch",
        "evidence": "Motorhersteller: Bosch",
        "confidence": 1
      },
      "motorModel": {
        "value": null,
        "evidence": null,
        "confidence": 0
      },
      "batteryWh": {
        "value": "545",
        "evidence": "Kapazität: 545 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 names Bosch Performance Line but does not establish an exact motor model. It gives the frame form as \"Kompakt\", which does not deterministically map to diamond, trapeze, or step-through. Speed class and battery integration are not stated."
    }
  }
}

Parsed specification table

{
  "Material": "Aluminium",
  "Farbe": "grau",
  "Gabel": "Original i:SY Starrgabel",
  "Steuersatz": "i:SY Steuersatz",
  "Schaltung": "Nabenschaltung",
  "Gänge": "5-Gang",
  "Schalthebel": "SHIMANO Nexus Revo Shifter",
  "Bremsenart": "Hydraulische Scheibenbremsen",
  "Bremshebel": "3-Finger Bremshebel",
  "Bremsscheiben": "180 mm/ 160 mm",
  "Kurbel": "i:SY E-Bike Kurbel",
  "Pedale": "i:SY Antirutsch Faltpedal",
  "Kassette": "28 T",
  "Lenker": "i:SY Lenker 30°",
  "Griffe": "ERGON GC10 ERGONomische Griffe",
  "Vorbau": "i:SY Vorbau 70mm",
  "Sattelstütze": "by.Schulz G2 Short Travel, ⌀ 34,9 mm",
  "Sattel": "ZECURE Comfort, Hydrofoam, Gr. M",
  "Laufradgröße": "20\"",
  "Felgen": "RYDE Andra 40 Disc, 32 H",
  "Speichen": "32x Niro 2,0 mm",
  "Reifen": "SCHWALBE Pick Up, Super Defense",
  "Nabe vorne": "SHIMANO Deore HB-M5100",
  "Nabe hinten": "Shimano Inter-5E, SG-C7000-5D",
  "Motorart": "Mittelmotor",
  "Motorhersteller": "Bosch",
  "Motor": "Bosch Performance Line",
  "Max. Drehmoment": "75 Nm",
  "Kapazität": "545 Wh",
  "Ladegerät": "Bosch 4A Charger",
  "Display": "Bosch Intuvia 100",
  "Scheinwerfer": "FUXON FF-100EB, 100 Lux LED mit Fernlicht",
  "Rücklicht": "FUXON R-Glow S LED Rücklicht",
  "Gepäckträger": "i:SY Carrier MonkeyLoad ready",
  "Gewicht": "ca. 23,9 kg",
  "zul. Gesamtgewicht": "max. 150 kg",
  "Rahmenform": "Kompakt",
  "Herstellerfarbe": "cloud grey",
  "Bremsen vorne": "TEKTRO HD-T532, hydraulische 4 Kolben Scheibenbremse",
  "Bremsen hinten": "TEKTRO HD-T532, hydraulische 2 Kolben Scheibenbremse",
  "Reifengröße": "60-406",
  "Fahrradschloss": "Abus i:SY-Set gleichschließend, bestehend aus Akku- und Rahmenschloss (BLO BOS DT3 + 4750SL NR)",
  "Fahrradständer": "PLETSCHER Kickstand Comp40 Flex"
}

Raw adapter output

{
  "retailer": "zweirad-stadler",
  "retailerProductId": "i-sy-e5-zr-f-e-bike-kompaktrad-20-grau",
  "productUrl": "https://shop.zweirad-stadler.de/fahrrad-shop/e-bikes/e-kompaktrad/i-sy-e5-zr-f-e-bike-kompaktrad-20-grau.html",
  "extractionMethod": "server-html",
  "sourceCategory": "e-bike",
  "rawTitle": "i:SY E5 ZR F E-Bike Kompaktrad 20\" grau",
  "rawBrand": "i:SY",
  "price": 4199,
  "originalPrice": null,
  "currency": "EUR",
  "imageUrl": "https://shop.zweirad-stadler.de/out/pictures/generated/product/1/1500_1500_100/isy-e5-zr-f-perf-545-grau-20-kompaktrad-134805-a.jpg",
  "rawSpecifications": {
    "Material": "Aluminium",
    "Farbe": "grau",
    "Gabel": "Original i:SY Starrgabel",
    "Steuersatz": "i:SY Steuersatz",
    "Schaltung": "Nabenschaltung",
    "Gänge": "5-Gang",
    "Schalthebel": "SHIMANO Nexus Revo Shifter",
    "Bremsenart": "Hydraulische Scheibenbremsen",
    "Bremshebel": "3-Finger Bremshebel",
    "Bremsscheiben": "180 mm/ 160 mm",
    "Kurbel": "i:SY E-Bike Kurbel",
    "Pedale": "i:SY Antirutsch Faltpedal",
    "Kassette": "28 T",
    "Lenker": "i:SY Lenker 30°",
    "Griffe": "ERGON GC10 ERGONomische Griffe",
    "Vorbau": "i:SY Vorbau 70mm",
    "Sattelstütze": "by.Schulz G2 Short Travel, ⌀ 34,9 mm",
    "Sattel": "ZECURE Comfort, Hydrofoam, Gr. M",
    "Laufradgröße": "20\"",
    "Felgen": "RYDE Andra 40 Disc, 32 H",
    "Speichen": "32x Niro 2,0 mm",
    "Reifen": "SCHWALBE Pick Up, Super Defense",
    "Nabe vorne": "SHIMANO Deore HB-M5100",
    "Nabe hinten": "Shimano Inter-5E, SG-C7000-5D",
    "Motorart": "Mittelmotor",
    "Motorhersteller": "Bosch",
    "Motor": "Bosch Performance Line",
    "Max. Drehmoment": "75 Nm",
    "Kapazität": "545 Wh",
    "Ladegerät": "Bosch 4A Charger",
    "Display": "Bosch Intuvia 100",
    "Scheinwerfer": "FUXON FF-100EB, 100 Lux LED mit Fernlicht",
    "Rücklicht": "FUXON R-Glow S LED Rücklicht",
    "Gepäckträger": "i:SY Carrier MonkeyLoad ready",
    "Gewicht": "ca. 23,9 kg",
    "zul. Gesamtgewicht": "max. 150 kg",
    "Rahmenform": "Kompakt",
    "Herstellerfarbe": "cloud grey",
    "Bremsen vorne": "TEKTRO HD-T532, hydraulische 4 Kolben Scheibenbremse",
    "Bremsen hinten": "TEKTRO HD-T532, hydraulische 2 Kolben Scheibenbremse",
    "Reifengröße": "60-406",
    "Fahrradschloss": "Abus i:SY-Set gleichschließend, bestehend aus Akku- und Rahmenschloss (BLO BOS DT3 + 4750SL NR)",
    "Fahrradständer": "PLETSCHER Kickstand Comp40 Flex"
  },
  "rawFeatures": [
    "47 cm (Onesize) 4-8 Werktage",
    "0% Finanzierung ab 419,90 € 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 i:SY E5 ZR F ist der Bestseller unter den i:SY E-Bike Kompakträdern. Dieses Premium-E-Bike Kompaktrad überzeugt durch eine unschlagbare Kombination aus Fahrkomfort, innovativer Technik und cleveren Detaillösungen. Es ist der ideale Begleiter für Pendler, Camper und alle, die ein wendiges, aber vollwertiges City E-Bike suchen.",
    "Bosch Performance Line 75 Nm",
    "5-Gang Shimano Nexus Nabenschaltung mit Gates CDX Zahnriemen-Antrieb",
    "Tektro Hydraulische Scheibenbremsen",
    "Gewicht lt. Hersteller: ca. 23,9 kg",
    "Zul. Gesamtgewicht: max. 150 kg",
    "Technische Maße ca.: Länge: 164,3 cm; Höhe: 116,8 cm; Breite: 29 cm; Einstiegshöhe: 48 cm"
  ],
  "rawSizes": [
    {
      "rawSize": "47 cm (Onesize)",
      "size": "47",
      "sizeCm": 47,
      "inStock": true,
      "stockCount": null,
      "price": null,
      "deliveryNote": "4-8 Werktage"
    }
  ],
  "availabilityText": "1 of 1 sizes orderable",
  "fetchedAt": "2026-09-26T08:25:22.267Z",
  "sourceMeta": {
    "savingBadge": null,
    "deliveryWindows": [
      "47 cm (Onesize) 4-8 Werktage"
    ]
  },
  "listingPath": [
    "E-Bikes",
    "E-Kompaktrad"
  ]
}

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