Mayor Plus 3 LowStep

rosebikes:rose-mayor-plus-3-lowstep-2723475 · source URL · confidence 0.39

Eligibility

Cannot win: probably-a-frameset; confidence 0.39 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
S	S	—	unknown	unsupported	yes	€4.700	—
M	M	—	unknown	unsupported	yes	€4.700	—
L	L	—	unknown	unsupported	yes	€4.700	—

retailer label

alpha

comparable cm

match

mapping

in stock

variant price

evidence

—

unknown

unsupported

yes

€4.700

—

unknown

unsupported

yes

€4.700

—

unknown

unsupported

yes

€4.700

—

mapping	unsupported
reason	ROSE publishes no defensible conventional equivalence for its letter sizes. ROSE publishes a rider-height range per letter size and nothing else — no geometry table at all on its product pages, and its own Größenberatung covers clothing only, not frames. A height range alone does not establish which conventional centimetre size a letter corresponds to, so ROSE bikes appear when a shopper picks a letter, not a centimetre.

mapping

unsupported

reason

ROSE publishes no defensible conventional equivalence for its letter sizes. ROSE publishes a rider-height range per letter size and nothing else — no geometry table at all on its product pages, and its own Größenberatung covers clothing only, not frames. A height range alone does not establish which conventional centimetre size a letter corresponds to, so ROSE bikes appear when a shopper picks a letter, not a centimetre.

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

Identity

Only listing of this configuration — nothing to merge.

Provenance — why we believe each fact

field source evidence

brand retailer:rosebikes / parse Rose

model retailer:rosebikes / derived Mayor Plus 3 LowStep

category retailer:rosebikes / parse E-Bike

brakeTier retailer:rosebikes / dictionary XT, BL-M8100 / BR

brakePistons retailer:rosebikes / parse Shimano caliper code BR-M8120

suspension retailer:rosebikes / derived suspension fork "SR Suntour Mobie 34 Air, 2CR, Druckstufe, Zugstufe, 100mm, 1" and no rear shock in a 16-field spec table

fork retailer:rosebikes / parse SR Suntour Mobie 34 Air, 2CR, Druckstufe, Zugstufe, 100mm, 15x100TA, schwarz matt 28"

dropperPost retailer:rosebikes / derived seatpost row "Cane Creek Thudbuster ST, schwarz Ø31,6mm/375mm" names no dropper, in a 16-field spec table

rack retailer:rosebikes / parse Tubus Snapit 2.0, schwarz

lighting retailer:rosebikes / parse Supernova TL3

powerMeter retailer:rosebikes / derived absent from a 16-field spec table

availability retailer:rosebikes / derived InStock

ebike.motor retailer:rosebikes / parse Bosch Performance

ebike.battery.capacityWh retailer:rosebikes / parse 750 Wh

ebike.frameShape retailer:rosebikes / parse LowStep

weightKg ai / ai (1) ca. 30,6 kg

field	source	evidence
brand	`retailer:rosebikes` / parse	Rose
model	`retailer:rosebikes` / derived	Mayor Plus 3 LowStep
category	`retailer:rosebikes` / parse	E-Bike
brakeTier	`retailer:rosebikes` / dictionary	XT, BL-M8100 / BR
brakePistons	`retailer:rosebikes` / parse	Shimano caliper code BR-M8120
suspension	`retailer:rosebikes` / derived	suspension fork "SR Suntour Mobie 34 Air, 2CR, Druckstufe, Zugstufe, 100mm, 1" and no rear shock in a 16-field spec table
fork	`retailer:rosebikes` / parse	SR Suntour Mobie 34 Air, 2CR, Druckstufe, Zugstufe, 100mm, 15x100TA, schwarz matt 28"
dropperPost	`retailer:rosebikes` / derived	seatpost row "Cane Creek Thudbuster ST, schwarz Ø31,6mm/375mm" names no dropper, in a 16-field spec table
rack	`retailer:rosebikes` / parse	Tubus Snapit 2.0, schwarz
lighting	`retailer:rosebikes` / parse	Supernova TL3
powerMeter	`retailer:rosebikes` / derived	absent from a 16-field spec table
availability	`retailer:rosebikes` / derived	InStock
ebike.motor	`retailer:rosebikes` / parse	Bosch Performance
ebike.battery.capacityWh	`retailer:rosebikes` / parse	750 Wh
ebike.frameShape	`retailer:rosebikes` / parse	LowStep
weightKg	`ai` / ai (1)	ca. 30,6 kg

Warnings

blocking probably-a-frameset — Spec table lists neither a drivetrain nor wheels: likely a frameset.
high incomplete-build — Detailed spec table with no drivetrain component listed.
high frame-material-unknown — Frame material could not be established.
high groupset-unknown — Groupset could not be established.
info wheel-material-unknown — Wheel material could not be established.

Score breakdown

{
  "frameScore": 8,
  "drivetrainScore": 0,
  "wheelScore": 5,
  "extrasScore": 4,
  "suspensionScore": 0,
  "weightAdjustment": -3,
  "equipmentValue": 14,
  "notes": [
    "Frame material unknown: scored below aluminium rather than assumed.",
    "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.",
    "30.6 kg vs 14.4 kg mtb-hardtail reference = -3.",
    "Fork series not stated: scored at the bottom of the fork ladder rather than assumed.",
    "Brake series \"upper\" +4."
  ],
  "marketPrice": null,
  "valueScore": null,
  "savingsVsMarket": null
}

AI normalization

{
  "requested": [
    "frameMaterial",
    "groupsetFamily",
    "wheelMaterial",
    "wheelTier",
    "brakes",
    "weightKg"
  ],
  "applied": [
    "weightKg"
  ],
  "rejected": [],
  "notes": "The source names a Bosch Performance Line CX drive system, which does not establish a groupset family in the permitted vocabulary. Brake components are named as Shimano XT BL-M8100 / BR-M8120, but brake type is not explicitly stated. No frame material, wheel material, wheelset model, shifting configuration, sprocket count, or power meter is specified. Weight is approximate, applies to frame colour Chalk and size M, and is stated without pedals.",
  "raw": {
    "frameMaterial": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "groupsetBrand": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "groupsetFamily": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "electronicShifting": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "speeds": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "mixedGroupset": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "wheelMaterial": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "wheelTier": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "brakes": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "weightKg": {
      "value": "30.6",
      "evidence": "ca. 30,6 kg",
      "confidence": 1
    },
    "powerMeter": {
      "value": null,
      "evidence": null,
      "confidence": 0.99
    },
    "notes": "The source names a Bosch Performance Line CX drive system, which does not establish a groupset family in the permitted vocabulary. Brake components are named as Shimano XT BL-M8100 / BR-M8120, but brake type is not explicitly stated. No frame material, wheel material, wheelset model, shifting configuration, sprocket count, or power meter is specified. Weight is approximate, applies to frame colour Chalk and size M, and is stated without pedals."
  }
}

Normalized record

{
  "id": "rosebikes:rose-mayor-plus-3-lowstep-2723475",
  "retailer": "rosebikes",
  "retailerProductId": "rose-mayor-plus-3-lowstep-2723475",
  "productUrl": "https://www.rosebikes.de/p/rose-mayor-plus-3-lowstep-2723475",
  "brand": "ROSE",
  "model": "Mayor Plus 3 LowStep",
  "modelYear": null,
  "category": "e-bike",
  "categoryBasis": "stated",
  "sourceCategory": "e-bike",
  "price": 4700,
  "originalPrice": 5300,
  "currency": "EUR",
  "discountPercent": 11,
  "frameMaterial": "unknown",
  "frameModel": "ROSE MAYOR PLUS LowStep, wet sand S | ROSE MAYOR PLUS LowStep, wet sand M | ROSE MAYOR PLUS LowStep, wet sand L | ROSE MAYOR PLUS LowStep, Chalk S | ROSE MAYOR ",
  "frameTier": null,
  "groupsetBrand": null,
  "groupsetFamily": null,
  "groupsetGeneration": null,
  "electronicShifting": null,
  "speeds": null,
  "mixedGroupset": null,
  "groupsetComponents": null,
  "groupsetTierSpread": 0,
  "crank": null,
  "cassette": null,
  "brakes": "unknown",
  "brakePistons": 4,
  "brakeTier": "upper",
  "suspension": "front",
  "fork": {
    "make": "SR Suntour",
    "line": "34",
    "tier": "unknown",
    "travelMm": 100
  },
  "rearShock": null,
  "dropperPost": false,
  "beltDrive": null,
  "hubDynamo": null,
  "rack": true,
  "mudguards": null,
  "chaincase": null,
  "kickstand": null,
  "lighting": true,
  "wheelSize": null,
  "wheelset": null,
  "wheelMaterial": "unknown",
  "wheelTier": "unknown",
  "tyres": "Schwalbe Marathon Efficiency Evo SuperRace, schwarz 27,5x2,35",
  "weightKg": 30.6,
  "ebike": {
    "motor": {
      "text": null,
      "brand": "bosch",
      "model": null,
      "position": "unknown",
      "torqueNm": null,
      "torqueSource": null,
      "ratedPowerW": null,
      "peakPowerW": null
    },
    "battery": {
      "text": "BOSCH Power Tube 750 Wh",
      "capacityWh": 750,
      "count": 1,
      "integration": "unknown",
      "removable": null
    },
    "speedClass": "unknown",
    "rangeExtender": "unknown",
    "display": null,
    "abs": null,
    "autoShift": null,
    "statedRangeKm": null,
    "eDiscipline": "unknown",
    "eDisciplineBasis": null,
    "frameShape": "step-through",
    "cargoType": "unknown",
    "maxSystemWeightKg": null,
    "rackCapacityKg": null,
    "weightIncludesBattery": null
  },
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "S",
      "size": "S",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 35,
      "price": 4700
    },
    {
      "rawSize": "M",
      "size": "M",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 12,
      "price": 4700
    },
    {
      "rawSize": "L",
      "size": "L",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 46,
      "price": 4700
    }
  ],
  "seller": null,
  "availability": "in-stock",
  "gtins": [],
  "imageUrl": "https://storage.rosebikes.com/images/p/245346_1769078063.png?im=Resize=(800,800);BackgroundColor=ffffff",
  "rawTitle": "Mayor Plus 3 LowStep",
  "fetchedAt": "2026-09-26T08:35:59.291Z",
  "normalizationConfidence": 0.39,
  "warnings": [
    {
      "code": "probably-a-frameset",
      "message": "Spec table lists neither a drivetrain nor wheels: likely a frameset.",
      "severity": "blocking"
    },
    {
      "code": "incomplete-build",
      "message": "Detailed spec table with no drivetrain component listed.",
      "severity": "high"
    },
    {
      "code": "frame-material-unknown",
      "message": "Frame material could not be established.",
      "severity": "high"
    },
    {
      "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",
      "batteryIntegration"
    ],
    "applied": [],
    "rejected": [],
    "notes": "The source names Bosch Performance Line CX but does not establish the exact motor unit variant. It does not state the speed class or battery integration.",
    "raw": {
      "motorBrand": {
        "value": "bosch",
        "evidence": "Antrieb: Bosch Performance Line CX",
        "confidence": 1
      },
      "motorModel": {
        "value": null,
        "evidence": null,
        "confidence": 0
      },
      "batteryWh": {
        "value": "750",
        "evidence": "Akku: BOSCH Power Tube 750 Wh",
        "confidence": 1
      },
      "speedClass": {
        "value": null,
        "evidence": null,
        "confidence": 0
      },
      "batteryIntegration": {
        "value": null,
        "evidence": null,
        "confidence": 0
      },
      "frameShape": {
        "value": "step-through",
        "evidence": "TITLE: Mayor Plus 3 LowStep",
        "confidence": 0.98
      },
      "notes": "The source names Bosch Performance Line CX but does not establish the exact motor unit variant. It does not state the speed class or battery integration."
    }
  }
}

Parsed specification table

{
  "E-Bike Rahmen": "ROSE MAYOR PLUS LowStep, wet sand S | ROSE MAYOR PLUS LowStep, wet sand M | ROSE MAYOR PLUS LowStep, wet sand L | ROSE MAYOR PLUS LowStep, Chalk S | ROSE MAYOR PLUS LowStep, Chalk M | ROSE MAYOR PLUS LowStep, Chalk L",
  "Gabel": "SR Suntour Mobie 34 Air, 2CR, Druckstufe, Zugstufe, 100mm, 15x100TA, schwarz matt 28\"",
  "Antrieb": "Bosch Performance Line CX",
  "Akku": "BOSCH Power Tube 750 Wh",
  "Reifen": "Schwalbe Marathon Efficiency Evo SuperRace, schwarz 27,5x2,35",
  "Riemen": "Gates Carbon Drive, schwarz 120 Z.",
  "Bremsen": "Shimano XT, BL-M8100 / BR-M8120 900mm | Shimano XT, BL-M8100(R) / BR-M8120(R) 1700mm",
  "Klingel": "Widek Alu Glockenkopf mit schwarzen Komponenten alu/schw.",
  "Vorbau": "ergotec Integra Performance Vario, schwarz",
  "Sattel": "Selle Royal ON Relaxed Royalgel Allure",
  "Sattelstütze": "Cane Creek Thudbuster ST, schwarz Ø31,6mm/375mm",
  "Gepäckträger": "Tubus Snapit 2.0, schwarz",
  "Rücklicht": "Supernova TL3",
  "Schloss": "AXA Fold 100 + BES3 Pivot PT, schwarz",
  "Pedale": "Rose VP-836 schwarz",
  "Kategorie": "E-Bike"
}

Raw adapter output

{
  "retailer": "rosebikes",
  "retailerProductId": "rose-mayor-plus-3-lowstep-2723475",
  "productUrl": "https://www.rosebikes.de/p/rose-mayor-plus-3-lowstep-2723475",
  "extractionMethod": "embedded-json",
  "sourceCategory": "e-bike",
  "rawTitle": "Mayor Plus 3 LowStep",
  "rawBrand": "Rose",
  "price": 4700,
  "originalPrice": 5300,
  "currency": "EUR",
  "imageUrl": "https://storage.rosebikes.com/images/p/245346_1769078063.png?im=Resize=(800,800);BackgroundColor=ffffff",
  "rawSpecifications": {
    "E-Bike Rahmen": "ROSE MAYOR PLUS LowStep, wet sand S | ROSE MAYOR PLUS LowStep, wet sand M | ROSE MAYOR PLUS LowStep, wet sand L | ROSE MAYOR PLUS LowStep, Chalk S | ROSE MAYOR PLUS LowStep, Chalk M | ROSE MAYOR PLUS LowStep, Chalk L",
    "Gabel": "SR Suntour Mobie 34 Air, 2CR, Druckstufe, Zugstufe, 100mm, 15x100TA, schwarz matt 28\"",
    "Antrieb": "Bosch Performance Line CX",
    "Akku": "BOSCH Power Tube 750 Wh",
    "Reifen": "Schwalbe Marathon Efficiency Evo SuperRace, schwarz 27,5x2,35",
    "Riemen": "Gates Carbon Drive, schwarz 120 Z.",
    "Bremsen": "Shimano XT, BL-M8100 / BR-M8120 900mm | Shimano XT, BL-M8100(R) / BR-M8120(R) 1700mm",
    "Klingel": "Widek Alu Glockenkopf mit schwarzen Komponenten alu/schw.",
    "Vorbau": "ergotec Integra Performance Vario, schwarz",
    "Sattel": "Selle Royal ON Relaxed Royalgel Allure",
    "Sattelstütze": "Cane Creek Thudbuster ST, schwarz Ø31,6mm/375mm",
    "Gepäckträger": "Tubus Snapit 2.0, schwarz",
    "Rücklicht": "Supernova TL3",
    "Schloss": "AXA Fold 100 + BES3 Pivot PT, schwarz",
    "Pedale": "Rose VP-836 schwarz",
    "Kategorie": "E-Bike"
  },
  "rawFeatures": [
    "Erlebe ein E-Bike, das dich voranbringt – effizient, kraftvoll und jederzeit bereit für mehr. Dank intuitiver Unterstützung, hoher Zuglast und innovativer Technik bekommst du mehr Reichweite, mehr Leistung und mehr Möglichkeiten – bei jeder Fahrt. ¹ ca. 30,6 kg fertigungsbedingt sind Schwankungen bis +/- 5 % möglich, Gewicht bei Rahmenfarbe Chalk, Größe M, ohne Pedale. Hersteller: Rose Bikes GmbH, Schersweide 4, 46395 Bocholt, Germany, www.rosebikes.de"
  ],
  "rawSizes": [
    {
      "rawSize": "S",
      "size": "S",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 35,
      "price": 4700
    },
    {
      "rawSize": "M",
      "size": "M",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 12,
      "price": 4700
    },
    {
      "rawSize": "L",
      "size": "L",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 46,
      "price": 4700
    }
  ],
  "availabilityText": "InStock",
  "fetchedAt": "2026-09-26T08:35:59.291Z",
  "sourceMeta": {
    "sku": "234684901",
    "modelPath": "/fahrräder/urban-und-trekking/e-urban-und-e-trekking/mayor-plus",
    "variantCount": 6,
    "colours": [
      "Wet Sand",
      "Chalk"
    ],
    "trafficLights": [
      "S:green",
      "M:green",
      "L:green",
      "S:green",
      "M:yellow",
      "L:green"
    ]
  },
  "listingPath": [
    "E-Bike",
    "E-Urban & E-Trekking"
  ]
}

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