← Review table (e-bike) · shopper page
rabe-bike:74569 · source URL · confidence 0.83
Cannot win: e-bike bikes are not value-ranked yet (no e-bike-specific equipment model)
| retailer label | alpha | comparable cm | match | mapping | in stock | variant price | evidence |
|---|---|---|---|---|---|---|---|
| M | M | — | unknown | unsupported | yes | €3.899 | — |
| L | L | — | unknown | unsupported | yes | €3.899 | — |
| XL | XL | — | unknown | unsupported | no | listing price | — |
| 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
Only listing of this configuration — nothing to merge.
| field | source | evidence |
|---|---|---|
| brand | retailer:rabe-bike / parse | Trek |
| model | retailer:rabe-bike / derived | Trek Powerfly+ FS 8 Gen 4 Gloss Lava/Matte Dark Web 2025-2026 |
| modelYear | retailer:rabe-bike / parse | Trek Powerfly+ FS 8 Gen 4 Gloss Lava/Matte Dark Web 2025-2026 |
| category | retailer:rabe-bike / derived | retailer taxonomy |
| frameMaterial | retailer:rabe-bike / parse | Alu |
| groupsetFamily | retailer:rabe-bike / dictionary | SRAM GX Eagle AXS, T-Type |
| electronicShifting | retailer:rabe-bike / derived | AXS |
| speeds | retailer:rabe-bike / parse | 12fach |
| brakes | retailer:rabe-bike / parse | Hydraulische |
| brakeTier | retailer:rabe-bike / dictionary | DB 8 |
| brakePistons | retailer:rabe-bike / parse | 4-Kolben |
| suspension | retailer:rabe-bike / derived | suspension fork "Fox Rhythm 36, Float EVOL-Luftfeder, GRIP-Dämpfung, konische" and no rear shock in a 26-field spec table |
| fork | retailer:rabe-bike / dictionary | Fox Rhythm 36, Float EVOL-Luftfeder, GRIP-Dämpfung, konischer Gabelschaft, 44 mm Vorbiegung, Boost110, 15-mm-Kabolt-Achs |
| dropperPost | retailer:rabe-bike / derived | Line Dropper |
| powerMeter | retailer:rabe-bike / derived | absent from a 26-field spec table |
| availability | retailer:rabe-bike / derived | In Stock; delivery 3-5 days |
| ebike.motor | retailer:rabe-bike / parse | Bosch Performance Line CX 85Nm (BDU38) bis zu 120 Nm per Bosch App selbst freischaltbar | Bosch |
| ebike.motor.torqueNm | retailer:rabe-bike / parse | 85Nm |
| ebike.battery.capacityWh | retailer:rabe-bike / parse | 800 Wh |
| ebike.battery.integration | retailer:rabe-bike / parse | PowerTube |
| ebike.battery.removable | retailer:rabe-bike / parse | herausnehmbarer |
| ebike.display | retailer:rabe-bike / parse | Display: Bosch Kiox 300, Smart System |
| ebike.maxSystemWeightKg | retailer:rabe-bike / parse | Systemgewicht: 136 kg |
info wheel-material-unknown — Wheel material could not be established.{
"frameScore": 11,
"drivetrainScore": 38,
"wheelScore": 5,
"extrasScore": 3,
"suspensionScore": 4,
"weightAdjustment": 0,
"equipmentValue": 61,
"notes": [
"SRAM GX Eagle AXS Transmission = 38.",
"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 \"entry\" +4 (130 mm travel, which is not scored).",
"Brake series \"basic\" +0.",
"Dropper post +3."
],
"marketPrice": null,
"valueScore": null,
"savingsVsMarket": null
}
{
"requested": [
"wheelMaterial",
"wheelTier",
"weightKg"
],
"applied": [],
"rejected": [],
"notes": "The source states a system weight of 136 kg, not the complete-bike weight, so weightKg is unresolved. The Bontrager Line Comp 30 wheelset is named, but the source does not establish its material or a defensible wheel tier. Power meter presence is not stated.",
"raw": {
"frameMaterial": {
"value": "aluminium",
"evidence": "Rahmenmaterial: Alu",
"confidence": 1
},
"groupsetBrand": {
"value": "SRAM",
"evidence": "Schaltwerk: SRAM GX Eagle AXS, T-Type",
"confidence": 1
},
"groupsetFamily": {
"value": "GX Eagle AXS Transmission",
"evidence": "SRAM GX Eagle AXS, T-Type",
"confidence": 0.95
},
"electronicShifting": {
"value": "true",
"evidence": "SRAM GX Eagle AXS, T-Type",
"confidence": 1
},
"speeds": {
"value": "12",
"evidence": "12fach",
"confidence": 1
},
"mixedGroupset": {
"value": "false",
"evidence": "Kurbel: SRAM GX, 160 mm Kurbelarmlänge",
"confidence": 0.85
},
"wheelMaterial": {
"value": null,
"evidence": null,
"confidence": 0
},
"wheelTier": {
"value": null,
"evidence": null,
"confidence": 0
},
"brakes": {
"value": "hydraulic-disc",
"evidence": "Hydraulische 4-Kolben-Scheibenbremse",
"confidence": 1
},
"weightKg": {
"value": null,
"evidence": null,
"confidence": 0
},
"powerMeter": {
"value": null,
"evidence": null,
"confidence": 0
},
"notes": "The source states a system weight of 136 kg, not the complete-bike weight, so weightKg is unresolved. The Bontrager Line Comp 30 wheelset is named, but the source does not establish its material or a defensible wheel tier. Power meter presence is not stated."
}
}
{
"id": "rabe-bike:74569",
"retailer": "rabe-bike",
"retailerProductId": "74569",
"productUrl": "https://www.rabe-bike.de/en/trek-powerfly-fs-8-gen-4-gloss-lava-matte-dark-web-2025",
"brand": "Trek",
"model": "Powerfly+ FS 8 Gen 4 Gloss Lava/Matte Dark Web -",
"modelYear": 2026,
"category": "e-bike",
"categoryBasis": "route",
"sourceCategory": "e-bike",
"price": 3899,
"originalPrice": 6499,
"currency": "EUR",
"discountPercent": 40,
"frameMaterial": "aluminium",
"frameModel": "Alpha Platinum, herausnehmbarer integrierter Akku (RIB 2.0), konisches Steuerrohr, interne Zugführung, Motor Armor, Gepäckträger- und Schutzblechösen, ABP, Boos",
"frameTier": null,
"groupsetBrand": "SRAM",
"groupsetFamily": "GX Eagle AXS Transmission",
"groupsetGeneration": null,
"electronicShifting": true,
"speeds": 12,
"mixedGroupset": false,
"groupsetComponents": {
"rearDerailleur": "GX Eagle AXS Transmission",
"crank": "GX Eagle"
},
"groupsetTierSpread": 0,
"crank": "SRAM GX, 160 mm Kurbelarmlänge",
"cassette": "SRAM Eagle XS-1275, T-Type, 10-52 Z., 12fach",
"brakes": "hydraulic-disc",
"brakePistons": 4,
"brakeTier": "basic",
"suspension": "front",
"fork": {
"make": "FOX",
"line": "36",
"tier": "entry",
"travelMm": 130
},
"rearShock": null,
"dropperPost": true,
"beltDrive": null,
"hubDynamo": null,
"rack": null,
"mudguards": null,
"chaincase": null,
"kickstand": null,
"lighting": null,
"wheelSize": null,
"wheelset": "Bontrager Line Comp 30, Tubeless Ready",
"wheelMaterial": "unknown",
"wheelTier": "unknown",
"tyres": "Bontrager Gunnison Pro XR, Tubeless-Ready, Drahtwulstkern, 60 TPI, 27.5 x 2.40/29 x 2.40",
"weightKg": null,
"ebike": {
"motor": {
"text": "Bosch Performance Line CX 85Nm (BDU38) bis zu 120 Nm per Bosch App selbst freischaltbar | Bosch",
"brand": "bosch",
"model": null,
"position": "unknown",
"torqueNm": 85,
"torqueSource": "retailer",
"ratedPowerW": null,
"peakPowerW": null
},
"battery": {
"text": "Bosch PowerTube 800 Wh, Smart System",
"capacityWh": 800,
"count": 1,
"integration": "integrated",
"removable": true
},
"speedClass": "unknown",
"rangeExtender": "unknown",
"display": "Bosch Kiox 300, Smart System",
"abs": null,
"autoShift": null,
"statedRangeKm": null,
"eDiscipline": "unknown",
"eDisciplineBasis": null,
"frameShape": "unknown",
"cargoType": "unknown",
"maxSystemWeightKg": 136,
"rackCapacityKg": null,
"weightIncludesBattery": null
},
"powerMeter": false,
"powerMeterKind": null,
"availableSizes": [
{
"rawSize": "M",
"size": "M",
"sizeCm": null,
"inStock": true,
"stockCount": 2,
"price": 3899
},
{
"rawSize": "L",
"size": "L",
"sizeCm": null,
"inStock": true,
"stockCount": 7,
"price": 3899
},
{
"rawSize": "XL",
"size": "XL",
"sizeCm": null,
"inStock": false,
"stockCount": 0,
"price": null
}
],
"seller": null,
"availability": "in-stock",
"gtins": [],
"imageUrl": "https://www.rabe-bike.de/img/450/300/resize/catalog/product/t/r/trek-powerfly-plus-fs-8-gen-4-gloss-lavamatte-dark-web-2025-1_4.jpg",
"rawTitle": "Trek Powerfly+ FS 8 Gen 4 Gloss Lava/Matte Dark Web 2025-2026",
"fetchedAt": "2026-09-26T08:32:50.375Z",
"normalizationConfidence": 0.83,
"warnings": [
{
"code": "wheel-material-unknown",
"message": "Wheel material could not be established.",
"severity": "info"
}
],
"ebikeAi": {
"requested": [
"motorModel",
"speedClass",
"frameShape"
],
"applied": [],
"rejected": [],
"notes": "The source identifies the motor as Bosch Performance Line CX with code BDU38, but does not establish the exact permitted motor-model variant. Speed class and frame shape are not stated.",
"raw": {
"motorBrand": {
"value": "bosch",
"evidence": "Motorhersteller: Bosch",
"confidence": 1
},
"motorModel": {
"value": null,
"evidence": null,
"confidence": 0
},
"batteryWh": {
"value": "800",
"evidence": "Akku: Bosch PowerTube 800 Wh, Smart System",
"confidence": 1
},
"speedClass": {
"value": null,
"evidence": null,
"confidence": 0
},
"batteryIntegration": {
"value": "integrated",
"evidence": "herausnehmbarer integrierter Akku (RIB 2.0)",
"confidence": 1
},
"frameShape": {
"value": null,
"evidence": null,
"confidence": 0
},
"notes": "The source identifies the motor as Bosch Performance Line CX with code BDU38, but does not establish the exact permitted motor-model variant. Speed class and frame shape are not stated."
}
}
}
{
"Rahmen": "Alpha Platinum, herausnehmbarer integrierter Akku (RIB 2.0), konisches Steuerrohr, interne Zugführung, Motor Armor, Gepäckträger- und Schutzblechösen, ABP, Boost148, 120 mm Federweg",
"Gabel": "Fox Rhythm 36, Float EVOL-Luftfeder, GRIP-Dämpfung, konischer Gabelschaft, 44 mm Vorbiegung, Boost110, 15-mm-Kabolt-Achse, 130 mm Federweg",
"Schaltwerk": "SRAM GX Eagle AXS, T-Type",
"Schalthebel": "SRAM AXS POD",
"Kurbel": "SRAM GX, 160 mm Kurbelarmlänge",
"Kassette": "SRAM Eagle XS-1275, T-Type, 10-52 Z., 12fach",
"Kette": "SRAM GX Eagle, T-Type, 12fach",
"Bremsen": "SRAM DB 8 Hydraulische 4-Kolben-Scheibenbremse",
"Laufradsatz": "Bontrager Line Comp 30, Tubeless Ready",
"Reifen": "Bontrager Gunnison Pro XR, Tubeless-Ready, Drahtwulstkern, 60 TPI, 27.5 x 2.40/29 x 2.40",
"Sattel": "Bontrager Verse P3, Stahlstreben",
"Sattelstütze": "Bontrager Line Dropper, MaxFlow, interne Zugführung, 31,6 mm",
"Lenker": "Bontrager Comp, Aluminium, 31,8 mm, 40 mm Rise, 780 mm Breite",
"Vorbau": "Bontrager Comp, 31,8 mm, Blendr-kompatibel, 7 Grad, 50 mm Länge",
"Steuersatz": "FSA IS-2, 1 1/8\" oben, 1,5\" unten",
"Griffe": "Bontrager XR Trail Comp, Nylonklemme",
"Systemgewicht": "136 kg",
"Motor": "Bosch Performance Line CX 85Nm (BDU38) bis zu 120 Nm per Bosch App selbst freischaltbar",
"Akku": "Bosch PowerTube 800 Wh, Smart System",
"Display": "Bosch Kiox 300, Smart System",
"Bedieneinheit": "Bosch LED-Remote, Smart System",
"Ladegerät": "Bosch Standardladegerät 4 A, 230 V, Smart System",
"Rahmenmaterial": "Alu",
"Bremsenhersteller": "SRAM",
"Motorhersteller": "Bosch",
"Typ": "E-Bike"
}
{
"retailer": "rabe-bike",
"retailerProductId": "74569",
"productUrl": "https://www.rabe-bike.de/en/trek-powerfly-fs-8-gen-4-gloss-lava-matte-dark-web-2025",
"extractionMethod": "server-html",
"sourceCategory": "e-bike",
"rawTitle": "Trek Powerfly+ FS 8 Gen 4 Gloss Lava/Matte Dark Web 2025-2026",
"rawBrand": "Trek",
"price": 3899,
"originalPrice": 6499,
"currency": "EUR",
"imageUrl": "https://www.rabe-bike.de/img/450/300/resize/catalog/product/t/r/trek-powerfly-plus-fs-8-gen-4-gloss-lavamatte-dark-web-2025-1_4.jpg",
"rawSpecifications": {
"Rahmen": "Alpha Platinum, herausnehmbarer integrierter Akku (RIB 2.0), konisches Steuerrohr, interne Zugführung, Motor Armor, Gepäckträger- und Schutzblechösen, ABP, Boost148, 120 mm Federweg",
"Gabel": "Fox Rhythm 36, Float EVOL-Luftfeder, GRIP-Dämpfung, konischer Gabelschaft, 44 mm Vorbiegung, Boost110, 15-mm-Kabolt-Achse, 130 mm Federweg",
"Schaltwerk": "SRAM GX Eagle AXS, T-Type",
"Schalthebel": "SRAM AXS POD",
"Kurbel": "SRAM GX, 160 mm Kurbelarmlänge",
"Kassette": "SRAM Eagle XS-1275, T-Type, 10-52 Z., 12fach",
"Kette": "SRAM GX Eagle, T-Type, 12fach",
"Bremsen": "SRAM DB 8 Hydraulische 4-Kolben-Scheibenbremse",
"Laufradsatz": "Bontrager Line Comp 30, Tubeless Ready",
"Reifen": "Bontrager Gunnison Pro XR, Tubeless-Ready, Drahtwulstkern, 60 TPI, 27.5 x 2.40/29 x 2.40",
"Sattel": "Bontrager Verse P3, Stahlstreben",
"Sattelstütze": "Bontrager Line Dropper, MaxFlow, interne Zugführung, 31,6 mm",
"Lenker": "Bontrager Comp, Aluminium, 31,8 mm, 40 mm Rise, 780 mm Breite",
"Vorbau": "Bontrager Comp, 31,8 mm, Blendr-kompatibel, 7 Grad, 50 mm Länge",
"Steuersatz": "FSA IS-2, 1 1/8\" oben, 1,5\" unten",
"Griffe": "Bontrager XR Trail Comp, Nylonklemme",
"Systemgewicht": "136 kg",
"Motor": "Bosch Performance Line CX 85Nm (BDU38) bis zu 120 Nm per Bosch App selbst freischaltbar",
"Akku": "Bosch PowerTube 800 Wh, Smart System",
"Display": "Bosch Kiox 300, Smart System",
"Bedieneinheit": "Bosch LED-Remote, Smart System",
"Ladegerät": "Bosch Standardladegerät 4 A, 230 V, Smart System",
"Rahmenmaterial": "Alu",
"Bremsenhersteller": "SRAM",
"Motorhersteller": "Bosch",
"Typ": "E-Bike"
},
"rawFeatures": [
"The Powerfly+ FS 8 is an electric mountain bike that takes you beyond the next climb. It offers enough suspension to master every trail comfortably and confidently - and thanks to plenty of power, it will take you wherever you want to go."
],
"rawSizes": [
{
"rawSize": "M",
"size": "M",
"sizeCm": null,
"inStock": true,
"stockCount": 2,
"price": 3899
},
{
"rawSize": "L",
"size": "L",
"sizeCm": null,
"inStock": true,
"stockCount": 7,
"price": 3899
},
{
"rawSize": "XL",
"size": "XL",
"sizeCm": null,
"inStock": false,
"stockCount": 0,
"price": null
}
],
"availabilityText": "In Stock; delivery 3-5 days",
"fetchedAt": "2026-09-26T08:32:50.375Z",
"sourceMeta": {
"sku": "74569",
"listingPath": "/en/e-bike/full-suspension",
"soldOut": 1,
"netFinalPrice": 3276.470588235294,
"inStockSizesOnListing": [
"M",
"L"
],
"childCount": 3
},
"listingPath": [
"E-Bike",
"Full Suspension E-Bike"
]
}