Trek FX Sport SL 4 Buff Beige 2027

rabe-bike:88692 · source URL · confidence 0.96

Eligibility

Cannot win: availability is out-of-stock; no size confirmed in stock

Size decisions

retailer label	alpha	comparable cm	match	mapping	in stock	variant price	evidence
XS	XS	—	unknown	unsupported	no	listing price	—
S	S	—	unknown	unsupported	no	listing price	—
M	M	—	unknown	unsupported	no	listing price	—
L	L	—	unknown	unsupported	no	listing price	—
XL	XL	—	unknown	unsupported	no	listing price	—

retailer label

alpha

comparable cm

match

mapping

in stock

variant price

evidence

—

unknown

unsupported

listing price

—

unknown

unsupported

listing price

—

unknown

unsupported

listing price

—

unknown

unsupported

listing price

—

unknown

unsupported

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.

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 | FX Sport SL 4 Buff | CUES | 2027
Confidence: high

brand exact (Trek)
model normalized to "fx sport sl 4 buff"
groupset family exact (CUES)
model year exact (2027)
2 listings across 2 retailers

retailer	price	sizes in stock
RABE Bike	€1.499	none	debug
Liquid-Life	€1.499	M	debug

retailer

price

sizes in stock

RABE Bike

€1.499

none

debug

Liquid-Life

€1.499

debug

Provenance — why we believe each fact

field source evidence

brand retailer:rabe-bike / parse Trek

model retailer:rabe-bike / derived Trek FX Sport SL 4 Buff Beige 2027

modelYear retailer:rabe-bike / parse Modelljahr: 2027

category retailer:rabe-bike / derived —

frameMaterial retailer:rabe-bike / parse Carbon

groupsetFamily retailer:rabe-bike / dictionary Shimano CUES U6000 mit optischer Ganganzeige, 10-fach || Shimano CUES U6000 GS

electronicShifting retailer:rabe-bike / derived Shimano CUES U6000 mit optischer Ganganzeige, 10-fach || Shimano CUES U6000 GS

speeds retailer:rabe-bike / parse 10fach

brakes retailer:rabe-bike / dictionary component code CUES U6000

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

fork retailer:rabe-bike / dictionary Carbon, verborgene Schutzblechösen, Flat Mount-Scheibenbremsaufnahme, 100 x 5 mm ThruSkew-Achse

dropperPost retailer:rabe-bike / derived seatpost row "Bontrager, Aluminium, 27,2 mm, 12 mm Versatz, 330 mm Länge" names no dropper, in a 22-field spec table

beltDrive retailer:rabe-bike / parse KMC

wheelMaterial retailer:rabe-bike / dictionary Bontrager Paradigm

wheelTier retailer:rabe-bike / dictionary Bontrager Paradigm

weightKg retailer:rabe-bike / parse Gewicht: 10,9 kg

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

availability retailer:rabe-bike / derived Coming soon; delivery 3-5 days

field	source	evidence
brand	`retailer:rabe-bike` / parse	Trek
model	`retailer:rabe-bike` / derived	Trek FX Sport SL 4 Buff Beige 2027
modelYear	`retailer:rabe-bike` / parse	Modelljahr: 2027
category	`retailer:rabe-bike` / derived	—
frameMaterial	`retailer:rabe-bike` / parse	Carbon
groupsetFamily	`retailer:rabe-bike` / dictionary	Shimano CUES U6000 mit optischer Ganganzeige, 10-fach \|\| Shimano CUES U6000 GS
electronicShifting	`retailer:rabe-bike` / derived	Shimano CUES U6000 mit optischer Ganganzeige, 10-fach \|\| Shimano CUES U6000 GS
speeds	`retailer:rabe-bike` / parse	10fach
brakes	`retailer:rabe-bike` / dictionary	component code CUES U6000
suspension	`retailer:rabe-bike` / derived	no suspension fork and no rear shock on a drop-bar listing
fork	`retailer:rabe-bike` / dictionary	Carbon, verborgene Schutzblechösen, Flat Mount-Scheibenbremsaufnahme, 100 x 5 mm ThruSkew-Achse
dropperPost	`retailer:rabe-bike` / derived	seatpost row "Bontrager, Aluminium, 27,2 mm, 12 mm Versatz, 330 mm Länge" names no dropper, in a 22-field spec table
beltDrive	`retailer:rabe-bike` / parse	KMC
wheelMaterial	`retailer:rabe-bike` / dictionary	Bontrager Paradigm
wheelTier	`retailer:rabe-bike` / dictionary	Bontrager Paradigm
weightKg	`retailer:rabe-bike` / parse	Gewicht: 10,9 kg
powerMeter	`retailer:rabe-bike` / derived	absent from a 22-field spec table
availability	`retailer:rabe-bike` / derived	Coming soon; delivery 3-5 days

Warnings

none

Score breakdown

{
  "frameScore": 21,
  "drivetrainScore": 13,
  "wheelScore": 8,
  "extrasScore": 3,
  "suspensionScore": 0,
  "weightAdjustment": 4,
  "equipmentValue": 49,
  "notes": [
    "Shimano CUES = 15.",
    "10-speed -2.",
    "Wheels \"good-aluminium\" = 8.",
    "Brakes \"hydraulic-disc\" +3.",
    "10.9 kg vs 16.2 kg city reference = +4."
  ],
  "marketPrice": 1744,
  "valueScore": 1.163,
  "savingsVsMarket": 245
}

AI normalization

Not used: deterministic parsing resolved every field it needed.

Normalized record

{
  "id": "rabe-bike:88692",
  "retailer": "rabe-bike",
  "retailerProductId": "88692",
  "productUrl": "https://www.rabe-bike.de/en/trek-fx-sport-sl-4-buff-beige-2027",
  "brand": "Trek",
  "model": "FX Sport SL 4 Buff Beige",
  "modelYear": 2027,
  "category": "city",
  "categoryBasis": "route",
  "sourceCategory": "city",
  "price": 1499,
  "originalPrice": null,
  "currency": "EUR",
  "discountPercent": null,
  "frameMaterial": "carbon",
  "frameModel": "400 Series OCLV Carbon, interne Zugführung, 3S-Kettenführung, DuoTrap S-kompatibel, Schutzblechösen, Flat Mount-Scheibenbremsaufnahme, 135 x 5 mm ThruSkew",
  "frameTier": null,
  "groupsetBrand": "Shimano",
  "groupsetFamily": "CUES",
  "groupsetGeneration": null,
  "electronicShifting": false,
  "speeds": 10,
  "mixedGroupset": false,
  "groupsetComponents": {
    "shifters": "CUES",
    "rearDerailleur": "CUES",
    "cassette": "CUES"
  },
  "groupsetTierSpread": 0,
  "crank": "Prowheel, Aluminium, Narrow-Wide-Kettenblatt (42 Z.), 175 mm Kurbelarmlänge",
  "cassette": "Shimano CUES LG300, LINKGLIDE, 11-48 Z., 10fach",
  "brakes": "hydraulic-disc",
  "brakePistons": null,
  "brakeTier": "unknown",
  "suspension": "none",
  "fork": {
    "make": null,
    "line": null,
    "tier": "rigid",
    "travelMm": 0
  },
  "rearShock": null,
  "dropperPost": false,
  "beltDrive": false,
  "hubDynamo": null,
  "rack": null,
  "mudguards": null,
  "chaincase": null,
  "kickstand": null,
  "lighting": null,
  "wheelSize": null,
  "wheelset": "Bontrager Paradigm, Tubeless Ready, 32-Loch, 21 mm Innenweite, Presta-Ventil | Formula CL-51, Aluminium, 100 x 5 mm | Formula CL-52, Alumini",
  "wheelMaterial": "aluminium",
  "wheelTier": "good-aluminium",
  "tyres": "Bontrager GR1 Expert, Hard-Case Lite, Drahtwulstkern, 60 TPI, 700 x 40 mm",
  "weightKg": 10.9,
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "XS",
      "size": "XS",
      "sizeCm": null,
      "inStock": false,
      "stockCount": 0,
      "price": null
    },
    {
      "rawSize": "S",
      "size": "S",
      "sizeCm": null,
      "inStock": false,
      "stockCount": 0,
      "price": null
    },
    {
      "rawSize": "M",
      "size": "M",
      "sizeCm": null,
      "inStock": false,
      "stockCount": 0,
      "price": null
    },
    {
      "rawSize": "L",
      "size": "L",
      "sizeCm": null,
      "inStock": false,
      "stockCount": 0,
      "price": null
    },
    {
      "rawSize": "XL",
      "size": "XL",
      "sizeCm": null,
      "inStock": false,
      "stockCount": 0,
      "price": null
    }
  ],
  "seller": null,
  "availability": "out-of-stock",
  "gtins": [],
  "imageUrl": "https://www.rabe-bike.de/img/450/300/resize/catalog/product/t/r/trek_fx_sport_sl_4_buff_beige_2027_1.jpg",
  "rawTitle": "Trek FX Sport SL 4 Buff Beige 2027",
  "fetchedAt": "2026-09-19T06:24:55.480Z",
  "normalizationConfidence": 0.96,
  "warnings": []
}

Parsed specification table

{
  "Rahmen": "400 Series OCLV Carbon, interne Zugführung, 3S-Kettenführung, DuoTrap S-kompatibel, Schutzblechösen, Flat Mount-Scheibenbremsaufnahme, 135 x 5 mm ThruSkew",
  "Gabel": "Carbon, verborgene Schutzblechösen, Flat Mount-Scheibenbremsaufnahme, 100 x 5 mm ThruSkew-Achse",
  "Schaltwerk": "Shimano CUES U6000 GS",
  "Schalthebel": "Shimano CUES U6000 mit optischer Ganganzeige, 10-fach",
  "Kurbel": "Prowheel, Aluminium, Narrow-Wide-Kettenblatt (42 Z.), 175 mm Kurbelarmlänge",
  "Kassette": "Shimano CUES LG300, LINKGLIDE, 11-48 Z., 10fach",
  "Kette": "KMC X Glide, 11fach, Gray",
  "Bremsen": "Shimano RT10, Center Lock-Scheibenaufnahme, 160 mm",
  "Felgen": "Bontrager Paradigm, Tubeless Ready, 32-Loch, 21 mm Innenweite, Presta-Ventil",
  "Nabe vorn": "Formula CL-51, Aluminium, 100 x 5 mm",
  "Nabe hinten": "Formula CL-52, Aluminium, 135 x 5 mm",
  "Reifen": "Bontrager GR1 Expert, Hard-Case Lite, Drahtwulstkern, 60 TPI, 700 x 40 mm",
  "Sattel": "Bontrager Commuter Comp ODER Trek Verse Short Trail",
  "Sattelstütze": "Bontrager, Aluminium, 27,2 mm, 12 mm Versatz, 330 mm Länge",
  "Lenker": "Bontrager aus Aluminium, 31,8 mm, 15 mm Rise",
  "Vorbau": "Bontrager Elite, 31,8 mm Klemmdurchmesser, Blendr-kompatibel, 7 Grad",
  "Griffe": "Trek Ergonomic PRO, Schraubklemmung",
  "Gewicht": "10,9 kg",
  "Systemgewicht": "136 kg",
  "Modelljahr": "2027",
  "Rahmenmaterial": "Carbon",
  "Bremsenhersteller": "Shimano"
}

Raw adapter output

{
  "retailer": "rabe-bike",
  "retailerProductId": "88692",
  "productUrl": "https://www.rabe-bike.de/en/trek-fx-sport-sl-4-buff-beige-2027",
  "extractionMethod": "server-html",
  "sourceCategory": "city",
  "rawTitle": "Trek FX Sport SL 4 Buff Beige 2027",
  "rawBrand": "Trek",
  "price": 1499,
  "originalPrice": null,
  "currency": "EUR",
  "imageUrl": "https://www.rabe-bike.de/img/450/300/resize/catalog/product/t/r/trek_fx_sport_sl_4_buff_beige_2027_1.jpg",
  "rawSpecifications": {
    "Rahmen": "400 Series OCLV Carbon, interne Zugführung, 3S-Kettenführung, DuoTrap S-kompatibel, Schutzblechösen, Flat Mount-Scheibenbremsaufnahme, 135 x 5 mm ThruSkew",
    "Gabel": "Carbon, verborgene Schutzblechösen, Flat Mount-Scheibenbremsaufnahme, 100 x 5 mm ThruSkew-Achse",
    "Schaltwerk": "Shimano CUES U6000 GS",
    "Schalthebel": "Shimano CUES U6000 mit optischer Ganganzeige, 10-fach",
    "Kurbel": "Prowheel, Aluminium, Narrow-Wide-Kettenblatt (42 Z.), 175 mm Kurbelarmlänge",
    "Kassette": "Shimano CUES LG300, LINKGLIDE, 11-48 Z., 10fach",
    "Kette": "KMC X Glide, 11fach, Gray",
    "Bremsen": "Shimano RT10, Center Lock-Scheibenaufnahme, 160 mm",
    "Felgen": "Bontrager Paradigm, Tubeless Ready, 32-Loch, 21 mm Innenweite, Presta-Ventil",
    "Nabe vorn": "Formula CL-51, Aluminium, 100 x 5 mm",
    "Nabe hinten": "Formula CL-52, Aluminium, 135 x 5 mm",
    "Reifen": "Bontrager GR1 Expert, Hard-Case Lite, Drahtwulstkern, 60 TPI, 700 x 40 mm",
    "Sattel": "Bontrager Commuter Comp ODER Trek Verse Short Trail",
    "Sattelstütze": "Bontrager, Aluminium, 27,2 mm, 12 mm Versatz, 330 mm Länge",
    "Lenker": "Bontrager aus Aluminium, 31,8 mm, 15 mm Rise",
    "Vorbau": "Bontrager Elite, 31,8 mm Klemmdurchmesser, Blendr-kompatibel, 7 Grad",
    "Griffe": "Trek Ergonomic PRO, Schraubklemmung",
    "Gewicht": "10,9 kg",
    "Systemgewicht": "136 kg",
    "Modelljahr": "2027",
    "Rahmenmaterial": "Carbon",
    "Bremsenhersteller": "Shimano"
  },
  "rawFeatures": [
    "Fast, powerful and comfortable. The vibration-damping carbon frame of the FX Sport 4 is equipped with high-quality parts that you will enjoy for a long time - including a 1x drive with intuitive operation."
  ],
  "rawSizes": [
    {
      "rawSize": "XS",
      "size": "XS",
      "sizeCm": null,
      "inStock": false,
      "stockCount": 0,
      "price": null
    },
    {
      "rawSize": "S",
      "size": "S",
      "sizeCm": null,
      "inStock": false,
      "stockCount": 0,
      "price": null
    },
    {
      "rawSize": "M",
      "size": "M",
      "sizeCm": null,
      "inStock": false,
      "stockCount": 0,
      "price": null
    },
    {
      "rawSize": "L",
      "size": "L",
      "sizeCm": null,
      "inStock": false,
      "stockCount": 0,
      "price": null
    },
    {
      "rawSize": "XL",
      "size": "XL",
      "sizeCm": null,
      "inStock": false,
      "stockCount": 0,
      "price": null
    }
  ],
  "availabilityText": "Coming soon; delivery 3-5 days",
  "fetchedAt": "2026-09-19T06:24:55.480Z",
  "sourceMeta": {
    "sku": "88692",
    "listingPath": "/en/trekking/urban",
    "soldOut": 0,
    "netFinalPrice": 1259.6638655462186,
    "inStockSizesOnListing": [],
    "childCount": 5
  }
}

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