Trek Checkpoint ALR 3 2026

lucky-bike:lb75799_dark carmine · source URL · confidence 1

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	—
ML	M/L	—	unknown	unsupported	yes	listing price	—
L	L	—	unknown	unsupported	yes	listing price	—
XL	XL	—	unknown	unsupported	yes	listing price	—

retailer label

alpha

comparable cm

match

mapping

in stock

variant price

evidence

—

unknown

unsupported

yes

listing price

—

M/L

—

unknown

unsupported

yes

listing price

—

unknown

unsupported

yes

listing price

—

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

Only listing of this configuration — nothing to merge.

Provenance — why we believe each fact

field source evidence

brand retailer:lucky-bike / parse Trek

model retailer:lucky-bike / derived Trek Checkpoint ALR 3 2026

modelYear retailer:lucky-bike / parse Modelljahr: 2027

category retailer:lucky-bike / parse Checkpoint

frameMaterial retailer:lucky-bike / parse Aluminium

groupsetFamily retailer:lucky-bike / dictionary Shimano CUES U6000 GS

electronicShifting retailer:lucky-bike / derived Shimano CUES U6000 GS

speeds retailer:lucky-bike / parse 10fach

brakes retailer:lucky-bike / parse hydraulische Scheibenbremse

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

fork retailer:lucky-bike / dictionary Trek Checkpoint, full carbon, tapered steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle

dropperPost retailer:lucky-bike / derived seatpost row "Bontrager, Aluminium, 27,2 mm, 12 mm Versatz, 330 mm Länge" names no dropper, in a 26-field spec table

beltDrive retailer:lucky-bike / parse Kettenschaltung

wheelSize retailer:lucky-bike / parse 28

wheelMaterial retailer:lucky-bike / dictionary Bontrager Paradigm

wheelTier retailer:lucky-bike / dictionary Bontrager Paradigm

powerMeter retailer:lucky-bike / derived absent from a 26-field spec table

availability retailer:lucky-bike / derived 4 of 4 sizes orderable

field	source	evidence
brand	`retailer:lucky-bike` / parse	Trek
model	`retailer:lucky-bike` / derived	Trek Checkpoint ALR 3 2026
modelYear	`retailer:lucky-bike` / parse	Modelljahr: 2027
category	`retailer:lucky-bike` / parse	Checkpoint
frameMaterial	`retailer:lucky-bike` / parse	Aluminium
groupsetFamily	`retailer:lucky-bike` / dictionary	Shimano CUES U6000 GS
electronicShifting	`retailer:lucky-bike` / derived	Shimano CUES U6000 GS
speeds	`retailer:lucky-bike` / parse	10fach
brakes	`retailer:lucky-bike` / parse	hydraulische Scheibenbremse
suspension	`retailer:lucky-bike` / derived	no suspension fork and no rear shock on a drop-bar listing
fork	`retailer:lucky-bike` / dictionary	Trek Checkpoint, full carbon, tapered steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle
dropperPost	`retailer:lucky-bike` / derived	seatpost row "Bontrager, Aluminium, 27,2 mm, 12 mm Versatz, 330 mm Länge" names no dropper, in a 26-field spec table
beltDrive	`retailer:lucky-bike` / parse	Kettenschaltung
wheelSize	`retailer:lucky-bike` / parse	28
wheelMaterial	`retailer:lucky-bike` / dictionary	Bontrager Paradigm
wheelTier	`retailer:lucky-bike` / dictionary	Bontrager Paradigm
powerMeter	`retailer:lucky-bike` / derived	absent from a 26-field spec table
availability	`retailer:lucky-bike` / derived	4 of 4 sizes orderable

Warnings

none

Score breakdown

{
  "frameScore": 11,
  "drivetrainScore": 10,
  "wheelScore": 8,
  "extrasScore": 0,
  "suspensionScore": 0,
  "weightAdjustment": 0,
  "equipmentValue": 29,
  "notes": [
    "Shimano CUES = 12.",
    "10-speed -2.",
    "Wheels \"good-aluminium\" = 8.",
    "Brakes \"hydraulic-disc\" = 0, the baseline for gravel.",
    "Weight not published: no weight adjustment either way."
  ],
  "marketPrice": 1446,
  "valueScore": 1.113,
  "savingsVsMarket": 147
}

AI normalization

Not used: deterministic parsing resolved every field it needed.

Normalized record

{
  "id": "lucky-bike:lb75799_dark carmine",
  "retailer": "lucky-bike",
  "retailerProductId": "lb75799_dark carmine",
  "productUrl": "https://www.lucky-bike.de/Fahrraeder/Rennrad/Gravelbikes/Trek-Checkpoint-ALR-3-2026-S-dark-carmine.html",
  "brand": "Trek",
  "model": "Checkpoint ALR 3",
  "modelYear": 2027,
  "category": "gravel",
  "categoryBasis": "stated",
  "sourceCategory": "gravel",
  "price": 1299,
  "originalPrice": null,
  "currency": "EUR",
  "discountPercent": null,
  "frameMaterial": "aluminium",
  "frameModel": "300 Series Alpha Aluminium, interne Zugführung, 3S-Kettenführung, T47-Innenlager, UDH, Gepäckträger- und Schutzblechösen, integrierte Aufnahme für Rahmentasche,",
  "frameTier": null,
  "groupsetBrand": "Shimano",
  "groupsetFamily": "CUES",
  "groupsetGeneration": null,
  "electronicShifting": false,
  "speeds": 10,
  "mixedGroupset": false,
  "groupsetComponents": {
    "rearDerailleur": "CUES",
    "crank": "CUES",
    "cassette": "CUES"
  },
  "groupsetTierSpread": 0,
  "crank": "Shimano CUES FCU60301 , 40T ring, 170mm length",
  "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": "28",
  "wheelset": "Bontrager Paradigm 23, Tubeless-Ready, 24-Loch, 23 mm Innenweite, Presta-Ventil | Bontrager, Aluminium, gedichtetes Lager, Center Lock Schei",
  "wheelMaterial": "aluminium",
  "wheelTier": "good-aluminium",
  "tyres": "Bontrager Girona Pro, Tubeless Ready, GR Pannenschutz, Aramid-Kern, 700x42mm",
  "weightKg": null,
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "S",
      "size": "S",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": null
    },
    {
      "rawSize": "ML",
      "size": "M/L",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": null
    },
    {
      "rawSize": "L",
      "size": "L",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": null
    },
    {
      "rawSize": "XL",
      "size": "XL",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": null
    }
  ],
  "seller": null,
  "availability": "in-stock",
  "gtins": [],
  "imageUrl": "https://images.lucky-bike.de/out/pictures/generated/product/1/540_340_75/trek-checkpoint-alr-3-dark-carmine-98324-01.jpg",
  "rawTitle": "Trek Checkpoint ALR 3 2026",
  "fetchedAt": "2026-09-19T06:07:26.692Z",
  "normalizationConfidence": 1,
  "warnings": []
}

Parsed specification table

{
  "Schaltwerk": "Shimano CUES U6000 GS",
  "Bremse": "Tektro C550 mechanical disc brake, dual piston, flat mount 0 offset // Shimano CUES U3030 // Tektro C550 mechanical disc brake, dual piston, flat mount, No adaptor.",
  "Reifen": "Bontrager Girona Pro, Tubeless Ready, GR Pannenschutz, Aramid-Kern, 700x42mm",
  "Rahmenmaterial": "Aluminium",
  "Gabel": "Trek Checkpoint, full carbon, tapered steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle",
  "Laufradgröße": "28 Zoll",
  "Felgen": "Bontrager Paradigm 23, Tubeless-Ready, 24-Loch, 23 mm Innenweite, Presta-Ventil",
  "Nabe vorne": "Bontrager, Aluminium, gedichtetes Lager, Center Lock Scheibenaufnahme, 100 x 12 mm Steckachse",
  "Nabe hinten": "Bontrager, Aluminium, gedichtetes Lager, Center Lock-Scheibenaufnahme, 11fach-Freilaufnabe von Shimano, 142 x 12 mm-Steckachse",
  "Kurbelsatz": "Shimano CUES FCU60301 , 40T ring, 170mm length",
  "Innenlager": "Praxis, T47, mit Gewinde, innen gelagert",
  "Kette": "Shimano LG500",
  "Bremstyp": "hydraulische Scheibenbremse",
  "Schaltungsart": "Kettenschaltung",
  "Ganganzahl": "10",
  "Zahnkränze": "Shimano CUES LG300, LINKGLIDE, 11-48 Z., 10fach",
  "Lenker": "Bontrager Elite Gravel, Aluminium, 42 cm Breite",
  "Vorbau": "Bontrager Elite, 31,8 mm Klemmdurchmesser, Blendr-kompatibel, 7 Grad, 90 mm Länge",
  "Sattel": "Verse Short Comp, Stahlstreben, 145 mm Breite",
  "Sattelstütze": "Bontrager, Aluminium, 27,2 mm, 12 mm Versatz, 330 mm Länge",
  "Pedale": "nicht enthalten",
  "Rahmeninformation": "300 Series Alpha Aluminium, interne Zugführung, 3S-Kettenführung, T47-Innenlager, UDH, Gepäckträger- und Schutzblechösen, integrierte Aufnahme für Rahmentasche, Flat Mount Scheibenbremsaufnahme, abgeschrägte 142 x 12 mm Steckachse",
  "Rahmenform": "Diamant",
  "Straßenausstattung": "nein",
  "Modelljahr": "2027",
  "Typ": "unisex"
}

Raw adapter output

{
  "retailer": "lucky-bike",
  "retailerProductId": "lb75799_dark carmine",
  "productUrl": "https://www.lucky-bike.de/Fahrraeder/Rennrad/Gravelbikes/Trek-Checkpoint-ALR-3-2026-S-dark-carmine.html",
  "extractionMethod": "public-search-api",
  "sourceCategory": "gravel",
  "rawTitle": "Trek Checkpoint ALR 3 2026",
  "rawBrand": "Trek",
  "price": 1299,
  "originalPrice": null,
  "currency": "EUR",
  "imageUrl": "https://images.lucky-bike.de/out/pictures/generated/product/1/540_340_75/trek-checkpoint-alr-3-dark-carmine-98324-01.jpg",
  "rawSpecifications": {
    "Schaltwerk": "Shimano CUES U6000 GS",
    "Bremse": "Tektro C550 mechanical disc brake, dual piston, flat mount 0 offset // Shimano CUES U3030 // Tektro C550 mechanical disc brake, dual piston, flat mount, No adaptor.",
    "Reifen": "Bontrager Girona Pro, Tubeless Ready, GR Pannenschutz, Aramid-Kern, 700x42mm",
    "Rahmenmaterial": "Aluminium",
    "Gabel": "Trek Checkpoint, full carbon, tapered steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle",
    "Laufradgröße": "28 Zoll",
    "Felgen": "Bontrager Paradigm 23, Tubeless-Ready, 24-Loch, 23 mm Innenweite, Presta-Ventil",
    "Nabe vorne": "Bontrager, Aluminium, gedichtetes Lager, Center Lock Scheibenaufnahme, 100 x 12 mm Steckachse",
    "Nabe hinten": "Bontrager, Aluminium, gedichtetes Lager, Center Lock-Scheibenaufnahme, 11fach-Freilaufnabe von Shimano, 142 x 12 mm-Steckachse",
    "Kurbelsatz": "Shimano CUES FCU60301 , 40T ring, 170mm length",
    "Innenlager": "Praxis, T47, mit Gewinde, innen gelagert",
    "Kette": "Shimano LG500",
    "Bremstyp": "hydraulische Scheibenbremse",
    "Schaltungsart": "Kettenschaltung",
    "Ganganzahl": "10",
    "Zahnkränze": "Shimano CUES LG300, LINKGLIDE, 11-48 Z., 10fach",
    "Lenker": "Bontrager Elite Gravel, Aluminium, 42 cm Breite",
    "Vorbau": "Bontrager Elite, 31,8 mm Klemmdurchmesser, Blendr-kompatibel, 7 Grad, 90 mm Länge",
    "Sattel": "Verse Short Comp, Stahlstreben, 145 mm Breite",
    "Sattelstütze": "Bontrager, Aluminium, 27,2 mm, 12 mm Versatz, 330 mm Länge",
    "Pedale": "nicht enthalten",
    "Rahmeninformation": "300 Series Alpha Aluminium, interne Zugführung, 3S-Kettenführung, T47-Innenlager, UDH, Gepäckträger- und Schutzblechösen, integrierte Aufnahme für Rahmentasche, Flat Mount Scheibenbremsaufnahme, abgeschrägte 142 x 12 mm Steckachse",
    "Rahmenform": "Diamant",
    "Straßenausstattung": "nein",
    "Modelljahr": "2027",
    "Typ": "unisex"
  },
  "rawFeatures": [
    "Carbon-Gabel für komfortables, präzises Handling – dein perfekter Begleiter für jedes Gravel-Abenteuer.",
    "Trek ist ein amerikanischer Fahrradhersteller mit Sitz in Waterloo und zählt zu den weltweit größten Fahrradherstellern. Sie bieten ein breites Produktportfolio an. Weitere Produkte von Trek",
    "Informationen zur Produktsicherheit HerstellerTrek Bicycle GmbHWegastraße 8 C - 6116 Halle - DEmarketing_gas@trekbikes.com"
  ],
  "rawSizes": [
    {
      "rawSize": "S",
      "size": "S",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": null
    },
    {
      "rawSize": "ML",
      "size": "M/L",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": null
    },
    {
      "rawSize": "L",
      "size": "L",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": null
    },
    {
      "rawSize": "XL",
      "size": "XL",
      "sizeCm": null,
      "inStock": true,
      "stockCount": null,
      "price": null
    }
  ],
  "availabilityText": "4 of 4 sizes orderable",
  "fetchedAt": "2026-09-19T06:07:26.692Z",
  "sourceMeta": {
    "sku": "0098324.002",
    "mpn": "5332747",
    "ldAvailability": "http://schema.org/InStock",
    "weightNote": null,
    "colour": "dark carmine",
    "articleNumber": "0098324.002",
    "ean": "197216175544",
    "badges": null,
    "reductionPercent": null,
    "feedSizes": [
      "S",
      "XL",
      "L",
      "ML"
    ],
    "parentSizes": "S, ML, L, XL"
  }
}

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