Brompton 26G-LineE4M

boc:15527573946633 · source URL · confidence 0.78

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
ONE SIZE	—	—	unknown	unsupported	yes	€4.249	—

retailer label

alpha

comparable cm

match

mapping

in stock

variant price

evidence

ONE SIZE

—

unknown

unsupported

yes

€4.249

—

mapping	unsupported
reason	"ONE SIZE" could not be read as a frame size.

mapping

unsupported

reason

"ONE SIZE" 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: Brompton | 26G-LineE4M | Microshift | 2026
Confidence: high

brand exact (Brompton)
model normalized to "26g linee4m"
groupset family exact (Microshift)
model year exact (2026)
2 listings across 1 retailer

retailer	price	sizes in stock
B.O.C.	€4.249	ONE SIZE	debug
B.O.C.	€4.299	ONE SIZE	debug

retailer

price

sizes in stock

B.O.C.

€4.249

ONE SIZE

debug

B.O.C.

€4.299

ONE SIZE

debug

Provenance — why we believe each fact

field source evidence

brand retailer:boc / parse BROMPTON

model retailer:boc / derived Brompton 26G-LineE4M

modelYear retailer:boc / parse Modelljahr: 2026

category retailer:boc / derived retailer taxonomy

frameMaterial retailer:boc / parse Stahl

groupsetFamily retailer:boc / dictionary Microshift

electronicShifting retailer:boc / derived Microshift

suspension retailer:boc / derived Starrgabel

fork retailer:boc / dictionary Starrgabel

dropperPost retailer:boc / derived seatpost row "Extended Seatpost - 89cm" names no dropper, in a 26-field spec table

lighting retailer:boc / parse Lezyne E115

wheelSize retailer:boc / parse 20

weightKg retailer:boc / parse Gewicht Kg. ca.: 19 kg

powerMeter retailer:boc / derived absent from a 26-field spec table

availability retailer:boc / derived 1 of 4 variants in stock

ebike.motor retailer:boc / parse Heckmotor, Light Assist, 35 Nm

ebike.motor.position retailer:boc / parse Heckmotor

ebike.motor.torqueNm retailer:boc / parse 35 Nm

ebike.battery.capacityWh retailer:boc / parse 345 Wh

ebike.eDiscipline retailer:boc / parse shelf: Klapprad E-Bikes

ebike.display retailer:boc / parse Display: LED display

ebike.maxSystemWeightKg retailer:boc / parse zulässiges Gesamtgewicht Kg: 130 kg

brakes ai / ai (1) Hydraulische Scheibenbremsen

ebike.speedClass ai / ai (1) 250 W bürstenloser Gleichstrommotor mit Unterstützung bis zu 25 km/h

field	source	evidence
brand	`retailer:boc` / parse	BROMPTON
model	`retailer:boc` / derived	Brompton 26G-LineE4M
modelYear	`retailer:boc` / parse	Modelljahr: 2026
category	`retailer:boc` / derived	retailer taxonomy
frameMaterial	`retailer:boc` / parse	Stahl
groupsetFamily	`retailer:boc` / dictionary	Microshift
electronicShifting	`retailer:boc` / derived	Microshift
suspension	`retailer:boc` / derived	Starrgabel
fork	`retailer:boc` / dictionary	Starrgabel
dropperPost	`retailer:boc` / derived	seatpost row "Extended Seatpost - 89cm" names no dropper, in a 26-field spec table
lighting	`retailer:boc` / parse	Lezyne E115
wheelSize	`retailer:boc` / parse	20
weightKg	`retailer:boc` / parse	Gewicht Kg. ca.: 19 kg
powerMeter	`retailer:boc` / derived	absent from a 26-field spec table
availability	`retailer:boc` / derived	1 of 4 variants in stock
ebike.motor	`retailer:boc` / parse	Heckmotor, Light Assist, 35 Nm
ebike.motor.position	`retailer:boc` / parse	Heckmotor
ebike.motor.torqueNm	`retailer:boc` / parse	35 Nm
ebike.battery.capacityWh	`retailer:boc` / parse	345 Wh
ebike.eDiscipline	`retailer:boc` / parse	shelf: Klapprad E-Bikes
ebike.display	`retailer:boc` / parse	Display: LED display
ebike.maxSystemWeightKg	`retailer:boc` / parse	zulässiges Gesamtgewicht Kg: 130 kg
brakes	`ai` / ai (1)	Hydraulische Scheibenbremsen
ebike.speedClass	`ai` / ai (1)	250 W bürstenloser Gleichstrommotor mit Unterstützung bis zu 25 km/h

Warnings

info brake-actuation-unstated — The spec table says "Scheibenbremse" without saying whether the disc brake is hydraulic or mechanical. Recorded as unknown; the two are not interchangeable to a buyer.
info single-size-only — Only one size is in stock (ONE SIZE).
info wheel-material-unknown — Wheel material could not be established.

Score breakdown

{
  "frameScore": 13,
  "drivetrainScore": 7,
  "wheelScore": 5,
  "extrasScore": 0,
  "suspensionScore": 2,
  "weightAdjustment": -3,
  "equipmentValue": 24,
  "notes": [
    "Microshift Microshift = 7.",
    "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.",
    "19 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",
    "brakes"
  ],
  "applied": [
    "brakes"
  ],
  "rejected": [],
  "notes": "The source names a Microshift shifter but identifies the drivetrain as a Brompton 4-speed system; the groupset family and whether the groupset is mixed cannot be determined. Wheel material and wheel tier are not specified. The bike has an electric motor, but no power meter is named.",
  "raw": {
    "frameMaterial": {
      "value": "steel",
      "evidence": "Handgelöteter Stahlrahmen und Gabel",
      "confidence": 1
    },
    "groupsetBrand": {
      "value": "Microshift",
      "evidence": "Schalthebel: Microshift",
      "confidence": 0.9
    },
    "groupsetFamily": {
      "value": null,
      "evidence": null,
      "confidence": 0.98
    },
    "electronicShifting": {
      "value": null,
      "evidence": null,
      "confidence": 0.95
    },
    "speeds": {
      "value": "4",
      "evidence": "Anzahl Gänge: 4",
      "confidence": 1
    },
    "mixedGroupset": {
      "value": null,
      "evidence": null,
      "confidence": 0.98
    },
    "wheelMaterial": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "wheelTier": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "brakes": {
      "value": "hydraulic-disc",
      "evidence": "Hydraulische Scheibenbremsen",
      "confidence": 1
    },
    "weightKg": {
      "value": "19",
      "evidence": "Gewicht Kg. ca.: 19 kg",
      "confidence": 1
    },
    "powerMeter": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "notes": "The source names a Microshift shifter but identifies the drivetrain as a Brompton 4-speed system; the groupset family and whether the groupset is mixed cannot be determined. Wheel material and wheel tier are not specified. The bike has an electric motor, but no power meter is named."
  }
}

Normalized record

{
  "id": "boc:15527573946633",
  "retailer": "boc",
  "retailerProductId": "15527573946633",
  "productUrl": "https://boc24.de/products/brompton-26g-linee4m",
  "brand": "Brompton",
  "model": "26G-LineE4M",
  "modelYear": 2026,
  "category": "e-bike",
  "categoryBasis": "route",
  "sourceCategory": "e-bike",
  "price": 4249,
  "originalPrice": null,
  "currency": "EUR",
  "discountPercent": null,
  "frameMaterial": "steel",
  "frameModel": null,
  "frameTier": null,
  "groupsetBrand": "Microshift",
  "groupsetFamily": "Microshift",
  "groupsetGeneration": null,
  "electronicShifting": false,
  "speeds": null,
  "mixedGroupset": false,
  "groupsetComponents": {
    "shifters": "Microshift"
  },
  "groupsetTierSpread": 0,
  "crank": null,
  "cassette": "11-18T",
  "brakes": "hydraulic-disc",
  "brakePistons": null,
  "brakeTier": "unknown",
  "suspension": "none",
  "fork": {
    "make": null,
    "line": null,
    "tier": "rigid",
    "travelMm": 0
  },
  "rearShock": null,
  "dropperPost": false,
  "beltDrive": null,
  "hubDynamo": null,
  "rack": null,
  "mudguards": null,
  "chaincase": null,
  "kickstand": null,
  "lighting": true,
  "wheelSize": "other",
  "wheelset": null,
  "wheelMaterial": "unknown",
  "wheelTier": "unknown",
  "tyres": "Schwalbe G-One All Round 54-406 Tan Wall",
  "weightKg": 19,
  "ebike": {
    "motor": {
      "text": "Heckmotor, Light Assist, 35 Nm",
      "brand": null,
      "model": null,
      "position": "rear-hub",
      "torqueNm": 35,
      "torqueSource": "retailer",
      "ratedPowerW": null,
      "peakPowerW": null
    },
    "battery": {
      "text": "345 Wh",
      "capacityWh": 345,
      "count": 1,
      "integration": "unknown",
      "removable": null
    },
    "speedClass": "pedelec-25",
    "rangeExtender": "unknown",
    "display": "LED display",
    "abs": null,
    "autoShift": null,
    "statedRangeKm": null,
    "eDiscipline": "e-folding",
    "eDisciplineBasis": "leaf",
    "frameShape": "unknown",
    "cargoType": "unknown",
    "maxSystemWeightKg": 130,
    "rackCapacityKg": null,
    "weightIncludesBattery": null
  },
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "ONE SIZE",
      "size": null,
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 4249,
      "preorder": false,
      "deliveryNote": null
    }
  ],
  "seller": null,
  "availability": "limited",
  "gtins": [],
  "imageUrl": "https://cdn.shopify.com/s/files/1/0582/1677/5854/files/az_Brompton_2026G_20LineE4M-0-Orange-241015_f96f54fa-7fc5-4e33-b9a5-51bc0f822b75.jpg?v=1781252102",
  "rawTitle": "Brompton 26G-LineE4M",
  "fetchedAt": "2026-09-26T06:11:38.451Z",
  "normalizationConfidence": 0.78,
  "warnings": [
    {
      "code": "brake-actuation-unstated",
      "message": "The spec table says \"Scheibenbremse\" without saying whether the disc brake is hydraulic or mechanical. Recorded as unknown; the two are not interchangeable to a buyer.",
      "severity": "info"
    },
    {
      "code": "single-size-only",
      "message": "Only one size is in stock (ONE SIZE).",
      "severity": "info"
    },
    {
      "code": "wheel-material-unknown",
      "message": "Wheel material could not be established.",
      "severity": "info"
    }
  ],
  "ebikeAi": {
    "requested": [
      "motorBrand",
      "motorModel",
      "speedClass",
      "batteryIntegration",
      "frameShape"
    ],
    "applied": [
      "speedClass"
    ],
    "rejected": [],
    "notes": "Der Motor wird nur als Heckmotor beschrieben; ein Motorhersteller oder exaktes Modell wird nicht genannt. „Akku mit integriertem USB-Anschluss“ beschreibt den USB-Anschluss, nicht die Integration des Akkus in den Rahmen. „Rahmenform: Falt“ bezeichnet ein Faltrahmen-Design und ist keiner der vorgegebenen Rahmenformen eindeutig zuordenbar.",
    "raw": {
      "motorBrand": {
        "value": null,
        "evidence": null,
        "confidence": 1
      },
      "motorModel": {
        "value": null,
        "evidence": null,
        "confidence": 1
      },
      "batteryWh": {
        "value": "345",
        "evidence": "Akkukapazität: 345 Wh",
        "confidence": 1
      },
      "speedClass": {
        "value": "pedelec-25",
        "evidence": "250 W bürstenloser Gleichstrommotor mit Unterstützung bis zu 25 km/h",
        "confidence": 1
      },
      "batteryIntegration": {
        "value": null,
        "evidence": null,
        "confidence": 1
      },
      "frameShape": {
        "value": null,
        "evidence": null,
        "confidence": 1
      },
      "notes": "Der Motor wird nur als Heckmotor beschrieben; ein Motorhersteller oder exaktes Modell wird nicht genannt. „Akku mit integriertem USB-Anschluss“ beschreibt den USB-Anschluss, nicht die Integration des Akkus in den Rahmen. „Rahmenform: Falt“ bezeichnet ein Faltrahmen-Design und ist keiner der vorgegebenen Rahmenformen eindeutig zuordenbar."
    }
  }
}

Parsed specification table

{
  "Ausstattung": "Handgelöteter Stahlrahmen und Gabel Empfohlene Körpergröße: 168 - 183 cm Gefaltete Größe: ab: 72 cm (T), 67 cm (H), 41 cm (B) 250 W bürstenloser Gleichstrommotor mit Unterstützung bis zu 25 km/h Akku mit integriertem USB-Anschluss zum Aufladen tragbarer Geräte 20 Zoll Laufräder und Reifen mit großen Volumen Intelligente Sensor- und Pedal-Assist-Technologie Hydraulische Scheibenbremsen Aluminium-Gabel mit Befestigungsvorrichtung Vielseitige Montagepunkte Schnelle Faltdauer von etwa 10-20 Sekunden",
  "Akkukapazität": "345 Wh",
  "Anzahl Gänge": "4",
  "Artikelmarke": "Brompton",
  "Beleuchtung": "Lezyne E115",
  "Bereifung": "Schwalbe G-One All Round 54-406 Tan Wall",
  "Bremsen": "Scheibenbremse",
  "Display": "LED display",
  "Gabel": "Alu Starrgabel",
  "Geschlecht": "Unisex",
  "Gewicht Kg. ca.": "19 kg",
  "Kassette": "11-18T",
  "Kettenblatt": "50 Zähne",
  "Laufradgröße": "20 Zoll",
  "Lenker": "Medium Bar",
  "Modelljahr": "2026",
  "Motor": "Heckmotor, Light Assist, 35 Nm",
  "Pedale": "Brompton Wide Platform Quick Release",
  "Rahmenform": "Falt",
  "Rahmenmaterial": "Stahl",
  "Rücklicht": "B&M Toplight 2C",
  "Sattel": "Standard Wide",
  "Sattelstütze": "Extended Seatpost - 89cm",
  "Schalthebel": "Microshift",
  "Schaltung": "Brompton 4-Gang Schaltung",
  "zulässiges Gesamtgewicht Kg": "130 kg"
}

Raw adapter output

{
  "retailer": "boc",
  "retailerProductId": "15527573946633",
  "productUrl": "https://boc24.de/products/brompton-26g-linee4m",
  "extractionMethod": "public-json-api",
  "sourceCategory": "e-bike",
  "rawTitle": "Brompton 26G-LineE4M",
  "rawBrand": "BROMPTON",
  "price": 4249,
  "originalPrice": null,
  "currency": "EUR",
  "imageUrl": "https://cdn.shopify.com/s/files/1/0582/1677/5854/files/az_Brompton_2026G_20LineE4M-0-Orange-241015_f96f54fa-7fc5-4e33-b9a5-51bc0f822b75.jpg?v=1781252102",
  "rawSpecifications": {
    "Ausstattung": "Handgelöteter Stahlrahmen und Gabel Empfohlene Körpergröße: 168 - 183 cm Gefaltete Größe: ab: 72 cm (T), 67 cm (H), 41 cm (B) 250 W bürstenloser Gleichstrommotor mit Unterstützung bis zu 25 km/h Akku mit integriertem USB-Anschluss zum Aufladen tragbarer Geräte 20 Zoll Laufräder und Reifen mit großen Volumen Intelligente Sensor- und Pedal-Assist-Technologie Hydraulische Scheibenbremsen Aluminium-Gabel mit Befestigungsvorrichtung Vielseitige Montagepunkte Schnelle Faltdauer von etwa 10-20 Sekunden",
    "Akkukapazität": "345 Wh",
    "Anzahl Gänge": "4",
    "Artikelmarke": "Brompton",
    "Beleuchtung": "Lezyne E115",
    "Bereifung": "Schwalbe G-One All Round 54-406 Tan Wall",
    "Bremsen": "Scheibenbremse",
    "Display": "LED display",
    "Gabel": "Alu Starrgabel",
    "Geschlecht": "Unisex",
    "Gewicht Kg. ca.": "19 kg",
    "Kassette": "11-18T",
    "Kettenblatt": "50 Zähne",
    "Laufradgröße": "20 Zoll",
    "Lenker": "Medium Bar",
    "Modelljahr": "2026",
    "Motor": "Heckmotor, Light Assist, 35 Nm",
    "Pedale": "Brompton Wide Platform Quick Release",
    "Rahmenform": "Falt",
    "Rahmenmaterial": "Stahl",
    "Rücklicht": "B&M Toplight 2C",
    "Sattel": "Standard Wide",
    "Sattelstütze": "Extended Seatpost - 89cm",
    "Schalthebel": "Microshift",
    "Schaltung": "Brompton 4-Gang Schaltung",
    "zulässiges Gesamtgewicht Kg": "130 kg"
  },
  "rawFeatures": [
    "Brompton 26G‑LineE4M – kompakte Freiheit für die Stadt Das Brompton 26G‑LineE4M ist die ideale Wahl für alle, die maximale Flexibilität im urbanen Alltag suchen. Mit seiner legendären Falttechnik, der hochwertigen Verarbeitung und seinem überraschend komfortablen Fahrgefühl setzt dieses Modell neue Maßstäbe für moderne Mobilität."
  ],
  "rawSizes": [
    {
      "rawSize": "ONE SIZE",
      "size": null,
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 4249,
      "preorder": false,
      "deliveryNote": null
    }
  ],
  "availabilityText": "1 of 4 variants in stock",
  "fetchedAt": "2026-09-26T06:11:38.451Z",
  "sourceMeta": {
    "shopifyProductId": 15527573946633,
    "handle": "brompton-26g-linee4m",
    "productType": "WG1",
    "variantSkus": [
      "241015-1",
      "241015-2",
      "241015-3",
      "241015-4"
    ]
  },
  "listingPath": [
    "E-Bikes",
    "Klapprad E-Bikes"
  ]
}

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