Trek Top Fuel 9 Gen 4 29

bikeexchange:trek_top_fuel_9_gen_4_29_2025 · source URL · confidence 0.83 · GTIN 0601842985335

Eligibility

Can win a band.

Size decisions

retailer label	alpha	comparable cm	match	mapping	in stock	variant price	evidence
L	L	—	unknown	unsupported	yes	€3.900	—

retailer label

alpha

comparable cm

match

mapping

in stock

variant price

evidence

—

unknown

unsupported

yes

€3.900

—

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 | Top Fuel 9 Gen 4 | GX Eagle AXS Transmission
Confidence: medium

brand exact (Trek)
model normalized to "top fuel 9 gen 4"
groupset family exact (GX Eagle AXS Transmission)
model year 2025 on 1 of 2 listings, unstated on the rest
GTIN match (0601842985335)
2 listings across 2 retailers
downgraded to medium: listings disagree on suspension: full vs front
conflict: suspension: full vs front

retailer	price	sizes in stock
BikeExchange	€3.900	L	debug
Bike-Mailorder	€4.799	none	debug

retailer

price

sizes in stock

BikeExchange

€3.900

debug

Bike-Mailorder

€4.799

none

debug

Provenance — why we believe each fact

field source evidence

brand retailer:bikeexchange / parse Trek

model retailer:bikeexchange / derived Trek Top Fuel 9 Gen 4 29

modelYear retailer:bikeexchange / parse Jahr: 2025

category retailer:bikeexchange / derived retailer taxonomy

frameMaterial retailer:bikeexchange / parse Aluminium

groupsetFamily retailer:bikeexchange / dictionary SRAM GX Eagle AXS, T-Type

electronicShifting retailer:bikeexchange / derived AXS

speeds retailer:bikeexchange / parse 12fach

brakes retailer:bikeexchange / parse Hydraulische

brakeTier retailer:bikeexchange / dictionary Level

brakePistons retailer:bikeexchange / parse 4-Kolben

suspension retailer:bikeexchange / derived suspension fork "Fox Rhythm 34, Float EVOL-Luftfeder, GRIP-Dämpfung, konische" and no rear shock in a 22-field spec table

fork retailer:bikeexchange / dictionary Fox Rhythm 34, Float EVOL-Luftfeder, GRIP-Dämpfung, konischer Gabelschaft, 44 mm Vorbiegung, Boost110, 15-mm-Kabolt-Achs

dropperPost retailer:bikeexchange / derived Line Dropper

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

availability retailer:bikeexchange / derived sizes 1: 1 stocked, 0 gone, 0 unread

seller retailer:bikeexchange / parse L: Radscheune & E-Bike Lounge GmbH&Co. KG

field	source	evidence
brand	`retailer:bikeexchange` / parse	Trek
model	`retailer:bikeexchange` / derived	Trek Top Fuel 9 Gen 4 29
modelYear	`retailer:bikeexchange` / parse	Jahr: 2025
category	`retailer:bikeexchange` / derived	retailer taxonomy
frameMaterial	`retailer:bikeexchange` / parse	Aluminium
groupsetFamily	`retailer:bikeexchange` / dictionary	SRAM GX Eagle AXS, T-Type
electronicShifting	`retailer:bikeexchange` / derived	AXS
speeds	`retailer:bikeexchange` / parse	12fach
brakes	`retailer:bikeexchange` / parse	Hydraulische
brakeTier	`retailer:bikeexchange` / dictionary	Level
brakePistons	`retailer:bikeexchange` / parse	4-Kolben
suspension	`retailer:bikeexchange` / derived	suspension fork "Fox Rhythm 34, Float EVOL-Luftfeder, GRIP-Dämpfung, konische" and no rear shock in a 22-field spec table
fork	`retailer:bikeexchange` / dictionary	Fox Rhythm 34, Float EVOL-Luftfeder, GRIP-Dämpfung, konischer Gabelschaft, 44 mm Vorbiegung, Boost110, 15-mm-Kabolt-Achs
dropperPost	`retailer:bikeexchange` / derived	Line Dropper
powerMeter	`retailer:bikeexchange` / derived	absent from a 22-field spec table
availability	`retailer:bikeexchange` / derived	sizes 1: 1 stocked, 0 gone, 0 unread
seller	`retailer:bikeexchange` / parse	L: Radscheune & E-Bike Lounge GmbH&Co. KG

Warnings

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

Score breakdown

{
  "frameScore": 11,
  "drivetrainScore": 38,
  "wheelScore": 5,
  "extrasScore": 5,
  "suspensionScore": 4,
  "weightAdjustment": 0,
  "equipmentValue": 63,
  "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 \"entry\" +2.",
    "Dropper post +3."
  ],
  "marketPrice": 2094,
  "valueScore": 0.537,
  "savingsVsMarket": -1806
}

AI normalization

{
  "requested": [
    "wheelMaterial",
    "wheelTier",
    "weightKg"
  ],
  "applied": [],
  "rejected": [],
  "notes": "Wheel material is not stated verbatim; only the wheel model 'Bontrager Line Comp 30' is given, so wheelMaterial is null. wheelTier is null because the tier assignment requires a defensible mapping from the named wheel model; only the model string is provided. No complete-bike weight or power meter is listed in the source.",
  "raw": {
    "frameMaterial": {
      "value": "aluminium",
      "evidence": "Rahmenmaterial: Aluminium",
      "confidence": 0.9
    },
    "groupsetBrand": {
      "value": "SRAM",
      "evidence": "SRAM GX Eagle AXS",
      "confidence": 0.9
    },
    "groupsetFamily": {
      "value": "GX Eagle AXS",
      "evidence": "SRAM GX Eagle AXS",
      "confidence": 0.9
    },
    "electronicShifting": {
      "value": "true",
      "evidence": "SRAM GX Eagle AXS",
      "confidence": 0.9
    },
    "speeds": {
      "value": "12",
      "evidence": "12fach",
      "confidence": 0.9
    },
    "mixedGroupset": {
      "value": "true",
      "evidence": "Kurbel: SRAM GX Eagle, T-Type\nUmwerfer hinten: SRAM GX Eagle AXS, T-Type",
      "confidence": 0.8
    },
    "wheelMaterial": {
      "value": null,
      "evidence": null,
      "confidence": 0.5
    },
    "wheelTier": {
      "value": null,
      "evidence": "Laufräder: Bontrager Line Comp 30",
      "confidence": 0.5
    },
    "brakes": {
      "value": "hydraulic-disc",
      "evidence": "Bremse: Hydraulische 4-Kolben-Scheibenbremse SRAM Level Bronze",
      "confidence": 0.9
    },
    "weightKg": {
      "value": null,
      "evidence": null,
      "confidence": 0.5
    },
    "powerMeter": {
      "value": null,
      "evidence": null,
      "confidence": 0.5
    },
    "notes": "Wheel material is not stated verbatim; only the wheel model 'Bontrager Line Comp 30' is given, so wheelMaterial is null. wheelTier is null because the tier assignment requires a defensible mapping from the named wheel model; only the model string is provided. No complete-bike weight or power meter is listed in the source."
  }
}

Normalized record

{
  "id": "bikeexchange:trek_top_fuel_9_gen_4_29_2025",
  "retailer": "bikeexchange",
  "retailerProductId": "trek_top_fuel_9_gen_4_29_2025",
  "productUrl": "https://www.bikeexchange.de/de-DE/products/trek_top_fuel_9_gen_4_29_2025?sku=TRE_0000529979",
  "brand": "Trek",
  "model": "Top Fuel 9 Gen 4 29",
  "modelYear": 2025,
  "category": "mtb",
  "categoryBasis": "route",
  "sourceCategory": "mtb",
  "price": 3900,
  "originalPrice": 4799,
  "currency": "EUR",
  "discountPercent": 19,
  "frameMaterial": "aluminium",
  "frameModel": "Alpha Platinum Aluminium, internes Staufach, konisches Steuerrohr, interne Zugführung, Unterrohrschutz, OCLV Next Umlenkhebel, Mino 4 Link, ABP, Boost148, 120 m",
  "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 AXS Transmission"
  },
  "groupsetTierSpread": 0,
  "crank": "SRAM GX Eagle, T-Type, DUB, 30 Z., 55 mm Kettenlinie, 170 mm Kurbelarmlänge",
  "cassette": "SRAM Eagle XS-1275, T-Type, 10-52 Z., 12fach",
  "brakes": "hydraulic-disc",
  "brakePistons": 4,
  "brakeTier": "entry",
  "suspension": "front",
  "fork": {
    "make": "FOX",
    "line": "34",
    "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",
  "wheelMaterial": "unknown",
  "wheelTier": "unknown",
  "tyres": "Bontrager Gunnison Pro XR, Tubeless-Ready, Zweikomponenten-Mischung, Aramidwulstkern, 60 TPI, 29 x 2.40",
  "weightKg": null,
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "L",
      "size": "L",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 3900,
      "seller": "Radscheune & E-Bike Lounge GmbH&Co. KG",
      "deliveryNote": "Reguläre Lieferzeit 7 Tage"
    }
  ],
  "seller": "Radscheune & E-Bike Lounge GmbH&Co. KG",
  "availability": "limited",
  "gtins": [
    "0601842985335"
  ],
  "imageUrl": "https://images.cdn.europe-west1.gcp.commercetools.com/078b97e9-ed31-4c81-baae-cdd44f3bf3c1/a8ec03d988bc5343e0a0-3St4IiEn.png",
  "rawTitle": "Trek Top Fuel 9 Gen 4 29",
  "fetchedAt": "2026-09-19T05:46:47.300Z",
  "normalizationConfidence": 0.83,
  "warnings": [
    {
      "code": "single-size-only",
      "message": "Only one size is in stock (L).",
      "severity": "info"
    },
    {
      "code": "wheel-material-unknown",
      "message": "Wheel material could not be established.",
      "severity": "info"
    }
  ]
}

Parsed specification table

{
  "Rahmenmaterial": "Aluminium",
  "Rahmen": "Alpha Platinum Aluminium, internes Staufach, konisches Steuerrohr, interne Zugführung, Unterrohrschutz, OCLV Next Umlenkhebel, Mino 4 Link, ABP, Boost148, 120 mm Federweg",
  "Bremse": "Hydraulische 4-Kolben-Scheibenbremse SRAM Level Bronze // Hydraulische 4-Kolben-Scheibenbremse SRAM Level Bronze",
  "Bremsscheiben": "Max. Bremsscheibendu",
  "Laufräder": "Bontrager Line Comp 30",
  "Reifen": "Bontrager Gunnison Pro XR, Tubeless-Ready, Zweikomponenten-Mischung, Aramidwulstkern, 60 TPI, 29 x 2.40",
  "Vorbau": "Bontrager Elite, 35 mm, 0 Grad, 45 mm Länge",
  "Lenker": "Bontrager Line, Aluminium, 35 mm, 27,5 mm Rise, 780 mm Breite",
  "Griffe": "Bontrager XR Trail Comp, Nylonklemme",
  "Kurbel": "SRAM GX Eagle, T-Type, DUB, 30 Z., 55 mm Kettenlinie, 170 mm Kurbelarmlänge",
  "Kassette": "SRAM Eagle XS-1275, T-Type, 10-52 Z., 12fach",
  "Innenlager": "SRAM DUB MTB Wide, 73 mm, BSA-Gewinde",
  "Umwerfer hinten": "SRAM GX Eagle AXS, T-Type",
  "Kette / Riemen": "SRAM GX Eagle, T-Type, 12fach",
  "Sattel": "Verse Short Comp, Stahlstreben, 145 mm Breite",
  "Sattelstütze": "Bontrager Line Dropper, 170 mm Hub, MaxFlow, interne Zugführung, 34,9 mm, 450 mm Länge",
  "Gabel Bauart": "Federgabel",
  "Federweg vorne": "130mm",
  "Gabelhersteller": "Fox",
  "Gabel": "Fox Rhythm 34, Float EVOL-Luftfeder, GRIP-Dämpfung, konischer Gabelschaft, 44 mm Vorbiegung, Boost110, 15-mm-Kabolt-Achse, 130 mm Federweg",
  "Federweg hinten": "Fox Performance Float DPS, 2-Positionen-Dämpfung, 185x50 mm",
  "Jahr": "2025"
}

Raw adapter output

{
  "retailer": "bikeexchange",
  "retailerProductId": "trek_top_fuel_9_gen_4_29_2025",
  "productUrl": "https://www.bikeexchange.de/de-DE/products/trek_top_fuel_9_gen_4_29_2025?sku=TRE_0000529979",
  "extractionMethod": "embedded-json",
  "sourceCategory": "mtb",
  "rawTitle": "Trek Top Fuel 9 Gen 4 29",
  "rawBrand": "Trek",
  "price": 3900,
  "originalPrice": 4799,
  "currency": "EUR",
  "imageUrl": "https://images.cdn.europe-west1.gcp.commercetools.com/078b97e9-ed31-4c81-baae-cdd44f3bf3c1/a8ec03d988bc5343e0a0-3St4IiEn.png",
  "rawSpecifications": {
    "Rahmenmaterial": "Aluminium",
    "Rahmen": "Alpha Platinum Aluminium, internes Staufach, konisches Steuerrohr, interne Zugführung, Unterrohrschutz, OCLV Next Umlenkhebel, Mino 4 Link, ABP, Boost148, 120 mm Federweg",
    "Bremse": "Hydraulische 4-Kolben-Scheibenbremse SRAM Level Bronze // Hydraulische 4-Kolben-Scheibenbremse SRAM Level Bronze",
    "Bremsscheiben": "Max. Bremsscheibendu",
    "Laufräder": "Bontrager Line Comp 30",
    "Reifen": "Bontrager Gunnison Pro XR, Tubeless-Ready, Zweikomponenten-Mischung, Aramidwulstkern, 60 TPI, 29 x 2.40",
    "Vorbau": "Bontrager Elite, 35 mm, 0 Grad, 45 mm Länge",
    "Lenker": "Bontrager Line, Aluminium, 35 mm, 27,5 mm Rise, 780 mm Breite",
    "Griffe": "Bontrager XR Trail Comp, Nylonklemme",
    "Kurbel": "SRAM GX Eagle, T-Type, DUB, 30 Z., 55 mm Kettenlinie, 170 mm Kurbelarmlänge",
    "Kassette": "SRAM Eagle XS-1275, T-Type, 10-52 Z., 12fach",
    "Innenlager": "SRAM DUB MTB Wide, 73 mm, BSA-Gewinde",
    "Umwerfer hinten": "SRAM GX Eagle AXS, T-Type",
    "Kette / Riemen": "SRAM GX Eagle, T-Type, 12fach",
    "Sattel": "Verse Short Comp, Stahlstreben, 145 mm Breite",
    "Sattelstütze": "Bontrager Line Dropper, 170 mm Hub, MaxFlow, interne Zugführung, 34,9 mm, 450 mm Länge",
    "Gabel Bauart": "Federgabel",
    "Federweg vorne": "130mm",
    "Gabelhersteller": "Fox",
    "Gabel": "Fox Rhythm 34, Float EVOL-Luftfeder, GRIP-Dämpfung, konischer Gabelschaft, 44 mm Vorbiegung, Boost110, 15-mm-Kabolt-Achse, 130 mm Federweg",
    "Federweg hinten": "Fox Performance Float DPS, 2-Positionen-Dämpfung, 185x50 mm",
    "Jahr": "2025"
  },
  "rawFeatures": [
    "Aluminium",
    "SRAM GX Eagle AXS",
    "29\"",
    "Beschreibung"
  ],
  "rawSizes": [
    {
      "rawSize": "L",
      "size": "L",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": 3900,
      "seller": "Radscheune & E-Bike Lounge GmbH&Co. KG",
      "deliveryNote": "Reguläre Lieferzeit 7 Tage"
    }
  ],
  "availabilityText": "sizes 1: 1 stocked, 0 gone, 0 unread",
  "fetchedAt": "2026-09-19T05:46:47.300Z",
  "sourceMeta": {
    "skus": [
      "601842985335"
    ],
    "shopSkus": [
      "TRE_0000529979",
      "TRE_0000529979"
    ],
    "seller": "Radscheune & E-Bike Lounge GmbH&Co. KG",
    "sellerOfSize": "L",
    "sellerId": "b1839878-bc0c-4370-875a-3fb0fbcd3a6c",
    "storeKey": "store_01KCRJ7YHZ0QX83QG8EA98BK7W_eur",
    "storeCity": "Erfurt",
    "storeCountry": "DE",
    "storeDelivers": true,
    "storeClickAndCollect": true,
    "storeReservation": true,
    "storeDeliveryTime": "P7D",
    "shippingPrice": 90,
    "hasMoreSellers": false,
    "condition": "NEW",
    "ctProductId": "2e6d14b5-ece9-4788-8b38-b0caefcb9e55",
    "shopCategory": "Fully",
    "colourCount": 1,
    "fetchedSku": "TRE_0000529979"
  }
}

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