Trek Charter+ 4 Enviolo Belt 800Wh Lowstep

bikeexchange:trek_charterplus_4_enviolo_belt_800wh_lowstep_2026 · source URL · confidence 0.58 · GTIN 0197216288848

Eligibility

Cannot win: confidence 0.58 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	€4.399	—
M	M	—	unknown	unsupported	yes	€4.399	—
L	L	—	unknown	unsupported	yes	€4.399	—
XL	XL	—	unknown	unsupported	yes	€4.399	—

retailer label

alpha

comparable cm

match

mapping

in stock

variant price

evidence

—

unknown

unsupported

yes

€4.399

—

unknown

unsupported

yes

€4.399

—

unknown

unsupported

yes

€4.399

—

unknown

unsupported

yes

€4.399

—

mapping	unsupported
reason	Trek publishes no defensible conventional equivalence for its letter sizes. Trek states it 'recently transitioned Trek road bike sizing from numerical sizing to alpha sizing' and now publishes height and inseam only. The centimetre figures retailers print beside Trek letters are per-model seat-tube lengths, not size names: the same 'M' appears as 47.6 cm on a Madone and 50 cm on a Domane, and 'S' also appears as 47.6 cm. The only cm-to-letter statement Trek makes is partial — the Madone Gen 8 FAQ says 'Sizes 52cm and 54cm have been combined into one size (M) and size 62cm has been replaced with a new XL frame' — which accounts for two of eight old sizes and leaves 58 cm and 60 cm unresolved between L and XL. Any complete mapping would have to be invented, so Trek keeps its letters and its retailer-printed centimetres are discarded rather than read as conventional sizes.

mapping

unsupported

reason

Trek publishes no defensible conventional equivalence for its letter sizes. Trek states it 'recently transitioned Trek road bike sizing from numerical sizing to alpha sizing' and now publishes height and inseam only. The centimetre figures retailers print beside Trek letters are per-model seat-tube lengths, not size names: the same 'M' appears as 47.6 cm on a Madone and 50 cm on a Domane, and 'S' also appears as 47.6 cm. The only cm-to-letter statement Trek makes is partial — the Madone Gen 8 FAQ says 'Sizes 52cm and 54cm have been combined into one size (M) and size 62cm has been replaced with a new XL frame' — which accounts for two of eight old sizes and leaves 58 cm and 60 cm unresolved between L and XL. Any complete mapping would have to be invented, so Trek keeps its letters and its retailer-printed centimetres are discarded rather than read as conventional sizes.

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

Identity

Canonical configuration: Trek | Charter+ 4 Enviolo Belt 800Wh Lowstep | 2026
Confidence: medium

brand exact (Trek)
model normalized to "charter 4 enviolo belt 800wh lowstep"
groupset family unidentified on every listing
GTIN match (0197216288848)
listings state different model years (2026, 2027); the shared manufacturer barcode says they are one SKU and is trusted over the year fields
2 listings across 2 retailers
downgraded to medium: listings disagree on suspension: none vs front
conflict: suspension: none vs front

retailer	price	sizes in stock
BikeExchange	€4.399	S, M, L, XL	debug
Mount7	€4.699	none	debug

retailer

price

sizes in stock

BikeExchange

€4.399

S, M, L, XL

debug

Mount7

€4.699

none

debug

Provenance — why we believe each fact

field source evidence

brand retailer:bikeexchange / parse Trek

model retailer:bikeexchange / derived Trek Charter+ 4 Enviolo Belt 800Wh Lowstep

modelYear retailer:bikeexchange / parse Jahr: 2026

category retailer:bikeexchange / parse 800Wh

frameMaterial retailer:bikeexchange / parse Aluminum

brakes retailer:bikeexchange / parse Hydraulic Disc

brakeTier retailer:bikeexchange / dictionary MT200

brakePistons retailer:bikeexchange / parse Shimano caliper code MT200

suspension retailer:bikeexchange / derived no suspension fork and no rear shock on a drop-bar listing

fork retailer:bikeexchange / dictionary 63mm

dropperPost retailer:bikeexchange / derived seatpost row "Aluminum, suspension, 31.6 mm, 300 mm length" names no dropper, in a 22-field spec table

kickstand retailer:bikeexchange / parse Pletscher Comp Flex 40

powerMeter retailer:bikeexchange / derived absent from a 22-field spec table

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

seller retailer:bikeexchange / parse L: RBL Zweiradvertrieb GmbH

ebike.motor retailer:bikeexchange / parse Bosch Performance Line, 250 W, 75 Nm, 25 km/h | Bosch

ebike.motor.torqueNm retailer:bikeexchange / parse 75 Nm

ebike.motor.power retailer:bikeexchange / parse Bosch Performance Line, 250 W, 75 Nm, 25 km/h | Bosch

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

ebike.battery.integration retailer:bikeexchange / parse PowerPack

ebike.frameShape retailer:bikeexchange / parse Lowstep

ebike.speedClass ai / ai (1) Motor: Bosch Performance Line, 250 W, 75 Nm, 25 km/h

field	source	evidence
brand	`retailer:bikeexchange` / parse	Trek
model	`retailer:bikeexchange` / derived	Trek Charter+ 4 Enviolo Belt 800Wh Lowstep
modelYear	`retailer:bikeexchange` / parse	Jahr: 2026
category	`retailer:bikeexchange` / parse	800Wh
frameMaterial	`retailer:bikeexchange` / parse	Aluminum
brakes	`retailer:bikeexchange` / parse	Hydraulic Disc
brakeTier	`retailer:bikeexchange` / dictionary	MT200
brakePistons	`retailer:bikeexchange` / parse	Shimano caliper code MT200
suspension	`retailer:bikeexchange` / derived	no suspension fork and no rear shock on a drop-bar listing
fork	`retailer:bikeexchange` / dictionary	63mm
dropperPost	`retailer:bikeexchange` / derived	seatpost row "Aluminum, suspension, 31.6 mm, 300 mm length" names no dropper, in a 22-field spec table
kickstand	`retailer:bikeexchange` / parse	Pletscher Comp Flex 40
powerMeter	`retailer:bikeexchange` / derived	absent from a 22-field spec table
availability	`retailer:bikeexchange` / derived	sizes 4: 4 stocked, 0 gone, 0 unread
seller	`retailer:bikeexchange` / parse	L: RBL Zweiradvertrieb GmbH
ebike.motor	`retailer:bikeexchange` / parse	Bosch Performance Line, 250 W, 75 Nm, 25 km/h \| Bosch
ebike.motor.torqueNm	`retailer:bikeexchange` / parse	75 Nm
ebike.motor.power	`retailer:bikeexchange` / parse	Bosch Performance Line, 250 W, 75 Nm, 25 km/h \| Bosch
ebike.battery.capacityWh	`retailer:bikeexchange` / parse	800 Wh
ebike.battery.integration	`retailer:bikeexchange` / parse	PowerPack
ebike.frameShape	`retailer:bikeexchange` / parse	Lowstep
ebike.speedClass	`ai` / ai (1)	Motor: Bosch Performance Line, 250 W, 75 Nm, 25 km/h

Warnings

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": 2,
  "weightAdjustment": 0,
  "equipmentValue": 18,
  "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.",
    "Weight not published: no weight adjustment either way.",
    "Fork \"rigid\" +2 (0 mm travel, which is not scored).",
    "Brake series \"basic\" +0."
  ],
  "marketPrice": null,
  "valueScore": null,
  "savingsVsMarket": null
}

AI normalization

{
  "requested": [
    "groupsetFamily",
    "wheelMaterial",
    "wheelTier",
    "weightKg"
  ],
  "applied": [],
  "rejected": [],
  "notes": "The source names an Enviolo drivetrain, which is not included in the permitted groupset vocabulary. The Bontrager Kovee wheels are named, but their material and a defensible wheel tier are not explicitly established. No complete-bike weight or power meter status is provided.",
  "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": null,
      "evidence": null,
      "confidence": 1
    },
    "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": "hydraulic-disc",
      "evidence": "Bremse: Shimano MT200 Hydraulic Disc",
      "confidence": 1
    },
    "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 permitted groupset vocabulary. The Bontrager Kovee wheels are named, but their material and a defensible wheel tier are not explicitly established. No complete-bike weight or power meter status is provided."
  }
}

Normalized record

{
  "id": "bikeexchange:trek_charterplus_4_enviolo_belt_800wh_lowstep_2026",
  "retailer": "bikeexchange",
  "retailerProductId": "trek_charterplus_4_enviolo_belt_800wh_lowstep_2026",
  "productUrl": "https://www.bikeexchange.de/de-DE/products/trek_charterplus_4_enviolo_belt_800wh_lowstep_2026?sku=TRE_0000677017",
  "brand": "Trek",
  "model": "Charter+ 4 Enviolo Belt 800Wh Lowstep",
  "modelYear": 2026,
  "category": "e-bike",
  "categoryBasis": "stated",
  "sourceCategory": "e-bike",
  "price": 4399,
  "originalPrice": null,
  "currency": "EUR",
  "discountPercent": null,
  "frameMaterial": "aluminium",
  "frameModel": "Premium Alpha Platinum Aluminum frame, top-load PowerPack, integrated cockpit routing, 135x5mm QR",
  "frameTier": null,
  "groupsetBrand": null,
  "groupsetFamily": null,
  "groupsetGeneration": null,
  "electronicShifting": null,
  "speeds": null,
  "mixedGroupset": null,
  "groupsetComponents": null,
  "groupsetTierSpread": 0,
  "crank": "ProWheel Aluminum, 170 mm crank arm length",
  "cassette": "Gates CDC CenterTrack, 22T",
  "brakes": "hydraulic-disc",
  "brakePistons": 2,
  "brakeTier": "basic",
  "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": true,
  "lighting": null,
  "wheelSize": null,
  "wheelset": "Bontrager Kovee, hollow chamber, Tubeless Ready, 28-hole, 23 mm internal width, Presta valve",
  "wheelMaterial": "unknown",
  "wheelTier": "unknown",
  "tyres": "Bontrager E6 Hard-Case Lite, reflective stripes, 27.5 x 2.40",
  "weightKg": null,
  "ebike": {
    "motor": {
      "text": "Bosch Performance Line, 250 W, 75 Nm, 25 km/h | Bosch",
      "brand": "bosch",
      "model": null,
      "position": "unknown",
      "torqueNm": 75,
      "torqueSource": "retailer",
      "ratedPowerW": 250,
      "peakPowerW": null
    },
    "battery": {
      "text": "800 Wh",
      "capacityWh": 800,
      "count": 1,
      "integration": "external",
      "removable": null
    },
    "speedClass": "pedelec-25",
    "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": null,
      "price": 4399,
      "seller": null,
      "deliveryNote": null
    },
    {
      "rawSize": "M",
      "size": "M",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 4399,
      "seller": null,
      "deliveryNote": null
    },
    {
      "rawSize": "L",
      "size": "L",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 4399,
      "seller": "RBL Zweiradvertrieb GmbH",
      "deliveryNote": "Reguläre Lieferzeit 5 Tage"
    },
    {
      "rawSize": "XL",
      "size": "XL",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 4399,
      "seller": null,
      "deliveryNote": null
    }
  ],
  "seller": "RBL Zweiradvertrieb GmbH",
  "availability": "in-stock",
  "gtins": [
    "0197216288848"
  ],
  "imageUrl": "https://images.cdn.europe-west1.gcp.commercetools.com/078b97e9-ed31-4c81-baae-cdd44f3bf3c1/b1e1a63320268f258ccc-itoTUu_o.png",
  "rawTitle": "Trek Charter+ 4 Enviolo Belt 800Wh Lowstep",
  "fetchedAt": "2026-09-26T06:37:12.495Z",
  "normalizationConfidence": 0.58,
  "warnings": [
    {
      "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"
    ],
    "applied": [
      "speedClass"
    ],
    "rejected": [],
    "notes": "The source names Bosch Performance Line but does not specify an exact motor model. Battery integration is not deterministically established; “top-load PowerPack” is ambiguous.",
    "raw": {
      "motorBrand": {
        "value": "bosch",
        "evidence": "Motorhersteller: Bosch",
        "confidence": 1
      },
      "motorModel": {
        "value": null,
        "evidence": null,
        "confidence": 1
      },
      "batteryWh": {
        "value": "800",
        "evidence": "Akkukapazität: 800 Wh",
        "confidence": 1
      },
      "speedClass": {
        "value": "pedelec-25",
        "evidence": "Motor: Bosch Performance Line, 250 W, 75 Nm, 25 km/h",
        "confidence": 1
      },
      "batteryIntegration": {
        "value": null,
        "evidence": null,
        "confidence": 1
      },
      "frameShape": {
        "value": "step-through",
        "evidence": "TITLE: Trek Charter+ 4 Enviolo Belt 800Wh Lowstep",
        "confidence": 0.95
      },
      "notes": "The source names Bosch Performance Line but does not specify an exact motor model. Battery integration is not deterministically established; “top-load PowerPack” is ambiguous."
    }
  }
}

Parsed specification table

{
  "Rahmenmaterial": "Aluminium",
  "Rahmen": "Premium Alpha Platinum Aluminum frame, top-load PowerPack, integrated cockpit routing, 135x5mm QR",
  "Bremse": "Shimano MT200 Hydraulic Disc",
  "Reifen": "Bontrager E6 Hard-Case Lite, reflective stripes, 27.5 x 2.40",
  "Nabe hinten": "Enviolo City, 32-hole, 6-bolt disc brake, 40T",
  "Laufräder": "Bontrager Kovee, hollow chamber, Tubeless Ready, 28-hole, 23 mm internal width, Presta valve",
  "Nabe vorne": "Shimano QC300, Centerlock",
  "Vorbau": "Bontrager Alloy, 31.8 mm clamp, adjustable rise, Blendr compatible, 80 mm length",
  "Lenker": "Bontrager Alloy, 31.8 mm, comfort sweep, 660 mm",
  "Akkukapazität": "800 Wh",
  "Motor": "Bosch Performance Line, 250 W, 75 Nm, 25 km/h",
  "Motorhersteller": "Bosch",
  "Ständer": "Pletscher Comp Flex 40",
  "Kassette": "Gates CDC CenterTrack, 22T",
  "Kurbelgarnitur": "ProWheel Aluminum, 170 mm crank arm length",
  "Pedale": "Bontrager City Pedals",
  "Sattel": "Bontrager Boulevard",
  "Sattelstütze": "Aluminum, suspension, 31.6 mm, 300 mm length",
  "Gabel Bauart": "Federgabel",
  "Federweg vorne": "63mm",
  "Gabelhersteller": "SR Suntour",
  "Jahr": "2026"
}

Raw adapter output

{
  "retailer": "bikeexchange",
  "retailerProductId": "trek_charterplus_4_enviolo_belt_800wh_lowstep_2026",
  "productUrl": "https://www.bikeexchange.de/de-DE/products/trek_charterplus_4_enviolo_belt_800wh_lowstep_2026?sku=TRE_0000677017",
  "extractionMethod": "embedded-json",
  "sourceCategory": "e-bike",
  "rawTitle": "Trek Charter+ 4 Enviolo Belt 800Wh Lowstep",
  "rawBrand": "Trek",
  "price": 4399,
  "originalPrice": null,
  "currency": "EUR",
  "imageUrl": "https://images.cdn.europe-west1.gcp.commercetools.com/078b97e9-ed31-4c81-baae-cdd44f3bf3c1/b1e1a63320268f258ccc-itoTUu_o.png",
  "rawSpecifications": {
    "Rahmenmaterial": "Aluminium",
    "Rahmen": "Premium Alpha Platinum Aluminum frame, top-load PowerPack, integrated cockpit routing, 135x5mm QR",
    "Bremse": "Shimano MT200 Hydraulic Disc",
    "Reifen": "Bontrager E6 Hard-Case Lite, reflective stripes, 27.5 x 2.40",
    "Nabe hinten": "Enviolo City, 32-hole, 6-bolt disc brake, 40T",
    "Laufräder": "Bontrager Kovee, hollow chamber, Tubeless Ready, 28-hole, 23 mm internal width, Presta valve",
    "Nabe vorne": "Shimano QC300, Centerlock",
    "Vorbau": "Bontrager Alloy, 31.8 mm clamp, adjustable rise, Blendr compatible, 80 mm length",
    "Lenker": "Bontrager Alloy, 31.8 mm, comfort sweep, 660 mm",
    "Akkukapazität": "800 Wh",
    "Motor": "Bosch Performance Line, 250 W, 75 Nm, 25 km/h",
    "Motorhersteller": "Bosch",
    "Ständer": "Pletscher Comp Flex 40",
    "Kassette": "Gates CDC CenterTrack, 22T",
    "Kurbelgarnitur": "ProWheel Aluminum, 170 mm crank arm length",
    "Pedale": "Bontrager City Pedals",
    "Sattel": "Bontrager Boulevard",
    "Sattelstütze": "Aluminum, suspension, 31.6 mm, 300 mm length",
    "Gabel Bauart": "Federgabel",
    "Federweg vorne": "63mm",
    "Gabelhersteller": "SR Suntour",
    "Jahr": "2026"
  },
  "rawFeatures": [
    "Bosch",
    "800wh",
    "Nabenschaltung",
    "Beschreibung"
  ],
  "rawSizes": [
    {
      "rawSize": "S",
      "size": "S",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 4399,
      "seller": null,
      "deliveryNote": null
    },
    {
      "rawSize": "M",
      "size": "M",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 4399,
      "seller": null,
      "deliveryNote": null
    },
    {
      "rawSize": "L",
      "size": "L",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 4399,
      "seller": "RBL Zweiradvertrieb GmbH",
      "deliveryNote": "Reguläre Lieferzeit 5 Tage"
    },
    {
      "rawSize": "XL",
      "size": "XL",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 4399,
      "seller": null,
      "deliveryNote": null
    }
  ],
  "availabilityText": "sizes 4: 4 stocked, 0 gone, 0 unread",
  "fetchedAt": "2026-09-26T06:37:12.495Z",
  "sourceMeta": {
    "skus": [
      "197216288848"
    ],
    "shopSkus": [
      "TRE_0000677017",
      "TRE_0000677019",
      "TRE_0000677014",
      "TRE_0000677017",
      "TRE_0000677016"
    ],
    "seller": "RBL Zweiradvertrieb GmbH",
    "sellerOfSize": "L",
    "sellerId": "b8439d09-c9bb-4698-95f7-923c105c9cae",
    "storeKey": "store_01KE0A7BFT26CNYNN5GPAXCQ11_eur",
    "storeCity": "Lingen",
    "storeCountry": "DE",
    "storeDelivers": true,
    "storeClickAndCollect": true,
    "storeReservation": true,
    "storeDeliveryTime": "P5D",
    "shippingPrice": 100,
    "hasMoreSellers": true,
    "condition": "NEW",
    "ctProductId": "216e7bc2-702d-4e30-80da-656bffdeb935",
    "shopCategory": "E-City & Urban",
    "colourCount": 2,
    "fetchedSku": "TRE_0000677017"
  },
  "listingPath": [
    "E-Bikes",
    "E-City & Urban"
  ]
}

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