Trek CheckOUT SL 5 - Carbon Gravel Bike - 2027 - Dark Star / Dark Web

bike24:963309 · source URL · confidence 1 · GTIN 0197216231226, 0197216231233, 0197216231257, 0197216231264

Eligibility

Can win a band.

Size decisions

retailer label	alpha	comparable cm	match	mapping	in stock	variant price	evidence
S	S	—	unknown	unsupported	yes	listing price	—

retailer label

alpha

comparable cm

match

mapping

in stock

variant price

evidence

—

unknown

unsupported

yes

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 | CheckOUT SL 5 | GRX | 2027
Confidence: medium

brand exact (Trek)
model normalized to "checkout sl 5"
groupset family exact (GRX)
GTIN match (0197216231226, 0197216231233, 0197216231240, +2 more)
listings state different model years (2026, 2027); the shared manufacturer barcode says they are one SKU and is trusted over the year fields
5 listings across 5 retailers
downgraded to medium: listings disagree on suspension: front vs full vs none
conflict: suspension: front vs full vs none

retailer	price	sizes in stock
BIKE24	€3.709	S	debug
BIKER-BOARDER	€3.799	L // 58 cm	debug
BikeHouse24	€4.199	M, ML, L	debug
Mount7	€4.999	none	debug
Liquid-Life	€4.999	S, M, ML, L, XL	debug

retailer

price

sizes in stock

BIKE24

€3.709

debug

BIKER-BOARDER

€3.799

L // 58 cm

debug

BikeHouse24

€4.199

M, ML, L

debug

Mount7

€4.999

none

debug

Liquid-Life

€4.999

S, M, ML, L, XL

debug

Provenance — why we believe each fact

field source evidence

brand retailer:bike24 / parse Trek

model retailer:bike24 / derived Trek CheckOUT SL 5 - Carbon Gravel Bike - 2027 - Dark Star / Dark Web

modelYear retailer:bike24 / parse Modelljahr: 2027

category retailer:bike24 / parse Gravel

frameMaterial retailer:bike24 / parse Carbon

groupsetFamily retailer:bike24 / dictionary Shimano GRX RX822

electronicShifting retailer:bike24 / parse Mechanisch

speeds retailer:bike24 / parse 1 x 12

brakes retailer:bike24 / parse Hydraulisch

suspension retailer:bike24 / derived suspension fork "RockShox Rudy XL Ultimate | Charger Race Day 2 Solo Air" and no rear shock in a 47-field spec table

fork retailer:bike24 / dictionary RockShox Rudy XL Ultimate | Charger Race Day 2 Solo Air

dropperPost retailer:bike24 / derived Dropper

wheelSize retailer:bike24 / parse 28

wheelMaterial retailer:bike24 / dictionary Bontrager Paradigm

wheelTier retailer:bike24 / dictionary Bontrager Paradigm

weightKg retailer:bike24 / parse Gewicht: 11970g

powerMeter retailer:bike24 / derived absent from a 47-field spec table

availability retailer:bike24 / derived https://schema.org/InStock

field	source	evidence
brand	`retailer:bike24` / parse	Trek
model	`retailer:bike24` / derived	Trek CheckOUT SL 5 - Carbon Gravel Bike - 2027 - Dark Star / Dark Web
modelYear	`retailer:bike24` / parse	Modelljahr: 2027
category	`retailer:bike24` / parse	Gravel
frameMaterial	`retailer:bike24` / parse	Carbon
groupsetFamily	`retailer:bike24` / dictionary	Shimano GRX RX822
electronicShifting	`retailer:bike24` / parse	Mechanisch
speeds	`retailer:bike24` / parse	1 x 12
brakes	`retailer:bike24` / parse	Hydraulisch
suspension	`retailer:bike24` / derived	suspension fork "RockShox Rudy XL Ultimate \| Charger Race Day 2 Solo Air" and no rear shock in a 47-field spec table
fork	`retailer:bike24` / dictionary	RockShox Rudy XL Ultimate \| Charger Race Day 2 Solo Air
dropperPost	`retailer:bike24` / derived	Dropper
wheelSize	`retailer:bike24` / parse	28
wheelMaterial	`retailer:bike24` / dictionary	Bontrager Paradigm
wheelTier	`retailer:bike24` / dictionary	Bontrager Paradigm
weightKg	`retailer:bike24` / parse	Gewicht: 11970g
powerMeter	`retailer:bike24` / derived	absent from a 47-field spec table
availability	`retailer:bike24` / derived	https://schema.org/InStock

Warnings

info single-size-only — Only one size is in stock (S).

Score breakdown

{
  "frameScore": 26,
  "drivetrainScore": 20,
  "wheelScore": 8,
  "extrasScore": 0,
  "suspensionScore": 0,
  "weightAdjustment": -3,
  "equipmentValue": 51,
  "notes": [
    "Shimano GRX = 20.",
    "Wheels \"good-aluminium\" = 8.",
    "Brakes \"hydraulic-disc\" = 0, the baseline for gravel.",
    "11.97 kg vs 10.4 kg gravel reference = -3."
  ],
  "marketPrice": 2660,
  "valueScore": 0.717,
  "savingsVsMarket": -1049
}

AI normalization

Not used: deterministic parsing resolved every field it needed.

Normalized record

{
  "id": "bike24:963309",
  "retailer": "bike24",
  "retailerProductId": "963309",
  "productUrl": "https://www.bike24.de/p1963309.html",
  "brand": "Trek",
  "model": "CheckOUT SL 5",
  "modelYear": 2027,
  "category": "gravel",
  "categoryBasis": "stated",
  "sourceCategory": "gravel",
  "price": 3709,
  "originalPrice": 4999,
  "currency": "EUR",
  "discountPercent": 26,
  "frameMaterial": "carbon",
  "frameModel": "500 Series OCLV Carbon | IsoSpeed",
  "frameTier": null,
  "groupsetBrand": "Shimano",
  "groupsetFamily": "GRX",
  "groupsetGeneration": null,
  "electronicShifting": false,
  "speeds": 12,
  "mixedGroupset": false,
  "groupsetComponents": {
    "rearDerailleur": "GRX",
    "crank": "GRX"
  },
  "groupsetTierSpread": 0,
  "crank": "Shimano GRX RX610",
  "cassette": "Shimano XT M8200",
  "brakes": "hydraulic-disc",
  "brakePistons": null,
  "brakeTier": "unknown",
  "suspension": "front",
  "fork": {
    "make": "RockShox",
    "line": "Rudy",
    "tier": "top",
    "travelMm": 60
  },
  "rearShock": null,
  "dropperPost": true,
  "beltDrive": null,
  "hubDynamo": null,
  "rack": null,
  "mudguards": null,
  "chaincase": null,
  "kickstand": null,
  "lighting": null,
  "wheelSize": "28",
  "wheelset": "Bontrager Paradigm Comp 25 | Tubeless Ready | 25mm rim width",
  "wheelMaterial": "aluminium",
  "wheelTier": "good-aluminium",
  "tyres": "Bontrager Betasso RSL GX | Tubeless-Ready | 60 TPI | 700 x 55 mm",
  "weightKg": 11.97,
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "S",
      "size": "S",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 1,
      "price": null
    }
  ],
  "seller": null,
  "availability": "limited",
  "gtins": [
    "0197216231226",
    "0197216231233",
    "0197216231257",
    "0197216231264"
  ],
  "imageUrl": "https://images.bike24.com/media/510/i/mb/01/c2/56/checkoutsl5-26-57827-a-primary-1961873.jpg",
  "rawTitle": "Trek CheckOUT SL 5 - Carbon Gravel Bike - 2027 - Dark Star / Dark Web",
  "fetchedAt": "2026-09-19T05:17:29.736Z",
  "normalizationConfidence": 1,
  "warnings": [
    {
      "code": "single-size-only",
      "message": "Only one size is in stock (S).",
      "severity": "info"
    }
  ]
}

Parsed specification table

{
  "Produktname": "Trek CheckOUT SL 5 - Carbon Gravel Bike - 2027 - Dark Star / Dark Web",
  "Hersteller": "Trek Bikes",
  "Artikelnummer": "TBI740614",
  "Aktivität": "Radfahren",
  "Geschlecht": "Herren",
  "Material": "Carbon",
  "Radsport Einsatzbereich": "Allroad / Gravel",
  "Felgen": "Bontrager Paradigm Comp 25 | Tubeless Ready | 25mm rim width",
  "Kette": "Shimano XT M8100",
  "Kassette": "Shimano XT M8200",
  "Schaltwerk": "Shimano GRX RX822",
  "Innenlager": "Praxis | T47",
  "Kettenblatt Abstufung": "38",
  "Kurbel": "Shimano GRX RX610",
  "Sattelstütze Modell": "TranzX JD-YSI36 | 100 mm Travel | 31,6 mm ⌀",
  "Sattel": "Verse Short Comp | 145mm",
  "Lenkerband": "Bontrager Supertack Perf-Lenkerband",
  "Lenker": "Bontrager GR Checkout",
  "Vorbau": "Bontrager Elite | 31.8 mm | 7°",
  "Gabel": "RockShox Rudy XL Ultimate | Charger Race Day 2 Solo Air",
  "Rahmen": "500 Series OCLV Carbon | IsoSpeed",
  "Schaltsystem (Hersteller)": "Shimano",
  "Abstufung Kassette": "10-51",
  "Schaltungsart": "Kette - Mechanisch",
  "Fahrrad Zusatzausstattung": "mit Gepäckträger",
  "Art der Bremse": "Scheibenbremse",
  "Laufradgröße": "28\" (622mm)",
  "Fahrrad Sonderausstattung": "Checkout Heckgepäckträger",
  "Sattelstütze": "Dropper Post",
  "Hinterbau": "Gefedert",
  "Federweg Gabel": "60mm",
  "Reifen": "Bontrager Betasso RSL GX | Tubeless-Ready | 60 TPI | 700 x 55 mm",
  "Bremsbetätigung": "Hydraulisch",
  "Modelljahr": "2027",
  "Kollektion": "Ganzjährig",
  "Farbe": "Schwarz",
  "Gabel Bauart": "klassische Federgabel",
  "Gewicht": "11970g",
  "Herstellerartikelnummer": "5338105 | 5338106 | 5338108 | 5338109",
  "Zugverlegung": "intern",
  "Quelle Gewicht": "Hersteller",
  "Gewogene Variante": "ML",
  "Produktserie": "Trek - Checkout",
  "Schaltstufen": "1 x 12",
  "Rahmenform": "Diamant",
  "GTIN": "197216231226, 197216231233, 197216231257, 197216231264",
  "Herstellerseite": "http://www.trekbikes.com"
}

Raw adapter output

{
  "retailer": "bike24",
  "retailerProductId": "963309",
  "productUrl": "https://www.bike24.de/p1963309.html",
  "extractionMethod": "embedded-json",
  "sourceCategory": "gravel",
  "rawTitle": "Trek CheckOUT SL 5 - Carbon Gravel Bike - 2027 - Dark Star / Dark Web",
  "rawBrand": "Trek",
  "price": 3709,
  "originalPrice": 4999,
  "currency": "EUR",
  "imageUrl": "https://images.bike24.com/media/510/i/mb/01/c2/56/checkoutsl5-26-57827-a-primary-1961873.jpg",
  "rawSpecifications": {
    "Produktname": "Trek CheckOUT SL 5 - Carbon Gravel Bike - 2027 - Dark Star / Dark Web",
    "Hersteller": "Trek Bikes",
    "Artikelnummer": "TBI740614",
    "Aktivität": "Radfahren",
    "Geschlecht": "Herren",
    "Material": "Carbon",
    "Radsport Einsatzbereich": "Allroad / Gravel",
    "Felgen": "Bontrager Paradigm Comp 25 | Tubeless Ready | 25mm rim width",
    "Kette": "Shimano XT M8100",
    "Kassette": "Shimano XT M8200",
    "Schaltwerk": "Shimano GRX RX822",
    "Innenlager": "Praxis | T47",
    "Kettenblatt Abstufung": "38",
    "Kurbel": "Shimano GRX RX610",
    "Sattelstütze Modell": "TranzX JD-YSI36 | 100 mm Travel | 31,6 mm ⌀",
    "Sattel": "Verse Short Comp | 145mm",
    "Lenkerband": "Bontrager Supertack Perf-Lenkerband",
    "Lenker": "Bontrager GR Checkout",
    "Vorbau": "Bontrager Elite | 31.8 mm | 7°",
    "Gabel": "RockShox Rudy XL Ultimate | Charger Race Day 2 Solo Air",
    "Rahmen": "500 Series OCLV Carbon | IsoSpeed",
    "Schaltsystem (Hersteller)": "Shimano",
    "Abstufung Kassette": "10-51",
    "Schaltungsart": "Kette - Mechanisch",
    "Fahrrad Zusatzausstattung": "mit Gepäckträger",
    "Art der Bremse": "Scheibenbremse",
    "Laufradgröße": "28\" (622mm)",
    "Fahrrad Sonderausstattung": "Checkout Heckgepäckträger",
    "Sattelstütze": "Dropper Post",
    "Hinterbau": "Gefedert",
    "Federweg Gabel": "60mm",
    "Reifen": "Bontrager Betasso RSL GX | Tubeless-Ready | 60 TPI | 700 x 55 mm",
    "Bremsbetätigung": "Hydraulisch",
    "Modelljahr": "2027",
    "Kollektion": "Ganzjährig",
    "Farbe": "Schwarz",
    "Gabel Bauart": "klassische Federgabel",
    "Gewicht": "11970g",
    "Herstellerartikelnummer": "5338105 | 5338106 | 5338108 | 5338109",
    "Zugverlegung": "intern",
    "Quelle Gewicht": "Hersteller",
    "Gewogene Variante": "ML",
    "Produktserie": "Trek - Checkout",
    "Schaltstufen": "1 x 12",
    "Rahmenform": "Diamant",
    "GTIN": "197216231226, 197216231233, 197216231257, 197216231264",
    "Herstellerseite": "http://www.trekbikes.com"
  },
  "rawFeatures": [],
  "rawSizes": [
    {
      "rawSize": "S",
      "size": "S",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 1,
      "price": null
    }
  ],
  "availabilityText": "https://schema.org/InStock",
  "fetchedAt": "2026-09-19T05:17:29.736Z",
  "sourceMeta": {
    "skus": [
      "197216231226",
      "197216231233",
      "197216231257",
      "197216231264"
    ],
    "startingPrice": false,
    "discountInPercent": 25,
    "articleNumber": "TBI740614"
  }
}

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