Surly LOWSIDE - 27.5" Singlespeed MTB - 2026 - blue monday

bike24:1026712 · source URL · confidence 0.75 · GTIN 0708752508118, 0708752508132, 0708752508156, 0708752508170

Eligibility

Cannot win: suspension type not stated, so it is in neither calibration unit

Size decisions

retailer label	alpha	comparable cm	match	mapping	in stock	variant price	evidence
S	S	—	unknown	unsupported	yes	listing price	—
M - ausverkauft - benachrichtigen lassen	M	—	unknown	unsupported	?	listing price	—
L	L	—	unknown	unsupported	yes	listing price	—
XL	XL	—	unknown	unsupported	yes	listing price	—
M	M	—	unknown	unsupported	no	listing price	—

retailer label

alpha

comparable cm

match

mapping

in stock

variant price

evidence

—

unknown

unsupported

yes

listing price

—

M - ausverkauft - benachrichtigen lassen

—

unknown

unsupported

listing price

—

unknown

unsupported

yes

listing price

—

unknown

unsupported

yes

listing price

—

unknown

unsupported

listing price

—

mapping	unsupported
reason	"S" is a letter size and there is no reviewed Surly equivalence to convert it.

mapping

unsupported

reason

"S" is a letter size and there is no reviewed Surly equivalence to convert it.

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:bike24 / parse Surly

model retailer:bike24 / derived Surly LOWSIDE - 27.5" Singlespeed MTB - 2026 - blue monday

modelYear retailer:bike24 / parse Modelljahr: 2026

category retailer:bike24 / parse MTB

frameMaterial retailer:bike24 / parse Stahl

brakes retailer:bike24 / parse Hydraulisch

suspension retailer:bike24 / derived no fork or rear-shock row, on a route where neither is the default

fork retailer:bike24 / parse 4130 Chromoly

dropperPost retailer:bike24 / derived seatpost row says "starr"

beltDrive retailer:bike24 / parse KMC

wheelSize retailer:bike24 / parse 27.5

wheelMaterial retailer:bike24 / dictionary WTB ST i35

wheelTier retailer:bike24 / dictionary WTB ST i35

weightKg retailer:bike24 / parse Gewicht: 12730g

powerMeter retailer:bike24 / derived absent from a 46-field spec table

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

field	source	evidence
brand	`retailer:bike24` / parse	Surly
model	`retailer:bike24` / derived	Surly LOWSIDE - 27.5" Singlespeed MTB - 2026 - blue monday
modelYear	`retailer:bike24` / parse	Modelljahr: 2026
category	`retailer:bike24` / parse	MTB
frameMaterial	`retailer:bike24` / parse	Stahl
brakes	`retailer:bike24` / parse	Hydraulisch
suspension	`retailer:bike24` / derived	no fork or rear-shock row, on a route where neither is the default
fork	`retailer:bike24` / parse	4130 Chromoly
dropperPost	`retailer:bike24` / derived	seatpost row says "starr"
beltDrive	`retailer:bike24` / parse	KMC
wheelSize	`retailer:bike24` / parse	27.5
wheelMaterial	`retailer:bike24` / dictionary	WTB ST i35
wheelTier	`retailer:bike24` / dictionary	WTB ST i35
weightKg	`retailer:bike24` / parse	Gewicht: 12730g
powerMeter	`retailer:bike24` / derived	absent from a 46-field spec table
availability	`retailer:bike24` / derived	https://schema.org/InStock

Warnings

high groupset-unknown — Groupset could not be established.

Score breakdown

{
  "frameScore": 13,
  "drivetrainScore": 0,
  "wheelScore": 5,
  "extrasScore": 0,
  "suspensionScore": 0,
  "weightAdjustment": 2.5,
  "equipmentValue": 20.5,
  "notes": [
    "Groupset not identified: 0 drivetrain points.",
    "Wheels \"basic-aluminium\" = 5.",
    "Brakes \"hydraulic-disc\" = 0, the baseline for mtb-hardtail.",
    "12.73 kg vs 14.4 kg mtb-hardtail reference = +2.5.",
    "Fork series not stated: scored at the bottom of the fork ladder rather than assumed."
  ],
  "marketPrice": null,
  "valueScore": null,
  "savingsVsMarket": null
}

AI normalization

{
  "requested": [
    "groupsetFamily"
  ],
  "applied": [],
  "rejected": [],
  "notes": "groupsetFamily is null because the source names 'SRAM NX Eagle' which is not one of the allowed family values. wheelTier left null because the wheel model is named but a confident tier mapping from the vocabulary is not established by the source text.",
  "raw": {
    "frameMaterial": {
      "value": "steel",
      "evidence": "Material: Stahl",
      "confidence": 0.9
    },
    "groupsetBrand": {
      "value": "SRAM",
      "evidence": "Kurbel: SRAM NX Eagle",
      "confidence": 0.9
    },
    "groupsetFamily": {
      "value": null,
      "evidence": null,
      "confidence": 0
    },
    "electronicShifting": {
      "value": "false",
      "evidence": "Schaltungsart: Keine",
      "confidence": 0.9
    },
    "speeds": {
      "value": "1",
      "evidence": "Schaltstufen: 1 x 1 (Single Speed)",
      "confidence": 0.9
    },
    "mixedGroupset": {
      "value": "false",
      "evidence": "Schaltstufen: 1 x 1 (Single Speed)",
      "confidence": 0.8
    },
    "wheelMaterial": {
      "value": "aluminium",
      "evidence": "Felgen: WTB ST i35 TCS 2.0",
      "confidence": 0.7
    },
    "wheelTier": {
      "value": null,
      "evidence": null,
      "confidence": 0
    },
    "brakes": {
      "value": "hydraulic-disc",
      "evidence": "Bremsbetätigung: Hydraulisch",
      "confidence": 0.9
    },
    "weightKg": {
      "value": "12.73",
      "evidence": "Gewicht: 12730g",
      "confidence": 0.9
    },
    "powerMeter": {
      "value": null,
      "evidence": null,
      "confidence": 0
    },
    "notes": "groupsetFamily is null because the source names 'SRAM NX Eagle' which is not one of the allowed family values. wheelTier left null because the wheel model is named but a confident tier mapping from the vocabulary is not established by the source text."
  }
}

Normalized record

{
  "id": "bike24:1026712",
  "retailer": "bike24",
  "retailerProductId": "1026712",
  "productUrl": "https://www.bike24.de/p11026712.html",
  "brand": "Surly",
  "model": "LOWSIDE",
  "modelYear": 2026,
  "category": "mtb",
  "categoryBasis": "stated",
  "sourceCategory": "mtb",
  "price": 1719,
  "originalPrice": 1799,
  "currency": "EUR",
  "discountPercent": 4,
  "frameMaterial": "steel",
  "frameModel": "Surly Lowside 4130 CroMo",
  "frameTier": null,
  "groupsetBrand": null,
  "groupsetFamily": null,
  "groupsetGeneration": null,
  "electronicShifting": null,
  "speeds": null,
  "mixedGroupset": false,
  "groupsetComponents": {
    "crank": "NX Eagle"
  },
  "groupsetTierSpread": 0,
  "crank": "SRAM NX Eagle",
  "cassette": "Surly Singlespeed Sprocket",
  "brakes": "hydraulic-disc",
  "brakePistons": null,
  "brakeTier": "unknown",
  "suspension": "unknown",
  "fork": {
    "make": null,
    "line": null,
    "tier": "unknown",
    "travelMm": null
  },
  "rearShock": null,
  "dropperPost": false,
  "beltDrive": false,
  "hubDynamo": null,
  "rack": null,
  "mudguards": null,
  "chaincase": null,
  "kickstand": null,
  "lighting": null,
  "wheelSize": "27.5",
  "wheelset": "WTB ST i35 TCS 2.0 | Novatec",
  "wheelMaterial": "aluminium",
  "wheelTier": "basic-aluminium",
  "tyres": "Maxxis Rekon+ | 27.5\" x 2.8\"",
  "weightKg": 12.73,
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "S",
      "size": "S",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 1,
      "price": null
    },
    {
      "rawSize": "M - ausverkauft - benachrichtigen lassen",
      "size": null,
      "sizeCm": null,
      "inStock": null,
      "stockCount": null,
      "price": null
    },
    {
      "rawSize": "L",
      "size": "L",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 2,
      "price": null
    },
    {
      "rawSize": "XL",
      "size": "XL",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 1,
      "price": null
    },
    {
      "rawSize": "M",
      "size": "M",
      "sizeCm": null,
      "inStock": false,
      "stockCount": null,
      "price": null
    }
  ],
  "seller": null,
  "availability": "in-stock",
  "gtins": [
    "0708752508118",
    "0708752508132",
    "0708752508156",
    "0708752508170"
  ],
  "imageUrl": "https://images.bike24.com/media/510/i/mb/8d/d1/4a/lowside-mtb-blue-monday-1-2108924.jpg",
  "rawTitle": "Surly LOWSIDE - 27.5\" Singlespeed MTB - 2026 - blue monday",
  "fetchedAt": "2026-09-19T05:27:36.801Z",
  "normalizationConfidence": 0.75,
  "warnings": [
    {
      "code": "groupset-unknown",
      "message": "Groupset could not be established.",
      "severity": "high"
    }
  ]
}

Parsed specification table

{
  "Produktname": "Surly LOWSIDE - 27.5\" Singlespeed MTB - 2026 - blue monday",
  "Hersteller": "Surly Bikes",
  "Artikelnummer": "SRB766570",
  "Aktivität": "Radfahren",
  "Geschlecht": "Herren, Unisex",
  "Material": "Stahl",
  "Radsport Einsatzbereich": "MTB, BMX / Dirt / Street",
  "Naben": "Novatec",
  "Speichen": "14g Stainless Steel",
  "Felgen": "WTB ST i35 TCS 2.0",
  "Kette": "KMC X9",
  "Kassette": "Surly Singlespeed Sprocket",
  "Innenlager": "SRAM PowerSpline BSA 73mm",
  "Kettenblatt Abstufung": "32",
  "Kurbel": "SRAM NX Eagle",
  "Bremsen": "Tektro HD-M275/276 | 160/160mm",
  "Sattelstütze Modell": "Promax SP-2019",
  "Sattel": "WTB Volt Medium",
  "Lenker": "Surly Sunset",
  "Vorbau": "Sunday Freeze Stem Top-Load",
  "Gabel": "4130 Chromoly",
  "Steuersatz": "FSA Orbit ITA",
  "Rahmen": "Surly Lowside 4130 CroMo",
  "Abstufung Kassette": "17",
  "Schaltungsart": "Keine",
  "Art der Bremse": "Scheibenbremse",
  "Laufradgröße": "27,5\" / 650B (584mm)",
  "Griffe": "Sunday Odyssey",
  "Sattelstütze": "Sattelstütze starr",
  "Hinterbau": "Ungefedert",
  "Reifen": "Maxxis Rekon+ | 27.5\" x 2.8\"",
  "Maximale Reifenbreite": "71mm",
  "Bremsbetätigung": "Hydraulisch",
  "Modelljahr": "2026",
  "Kollektion": "Ganzjährig",
  "Farbe": "Blau",
  "Gabel Bauart": "Starrgabel",
  "Gewicht": "12730g",
  "Zugverlegung": "extern",
  "Quelle Gewicht": "Hersteller",
  "Gewogene Variante": "M",
  "Produktserie": "Surly - Lowside",
  "Schaltstufen": "1 x 1 (Single Speed)",
  "Rahmenform": "Diamant",
  "GTIN": "708752508118, 708752508132, 708752508156, 708752508170",
  "Herstellerseite": "http://www.surlybikes.com/"
}

Raw adapter output

{
  "retailer": "bike24",
  "retailerProductId": "1026712",
  "productUrl": "https://www.bike24.de/p11026712.html",
  "extractionMethod": "embedded-json",
  "sourceCategory": "mtb",
  "rawTitle": "Surly LOWSIDE - 27.5\" Singlespeed MTB - 2026 - blue monday",
  "rawBrand": "Surly",
  "price": 1719,
  "originalPrice": 1799,
  "currency": "EUR",
  "imageUrl": "https://images.bike24.com/media/510/i/mb/8d/d1/4a/lowside-mtb-blue-monday-1-2108924.jpg",
  "rawSpecifications": {
    "Produktname": "Surly LOWSIDE - 27.5\" Singlespeed MTB - 2026 - blue monday",
    "Hersteller": "Surly Bikes",
    "Artikelnummer": "SRB766570",
    "Aktivität": "Radfahren",
    "Geschlecht": "Herren, Unisex",
    "Material": "Stahl",
    "Radsport Einsatzbereich": "MTB, BMX / Dirt / Street",
    "Naben": "Novatec",
    "Speichen": "14g Stainless Steel",
    "Felgen": "WTB ST i35 TCS 2.0",
    "Kette": "KMC X9",
    "Kassette": "Surly Singlespeed Sprocket",
    "Innenlager": "SRAM PowerSpline BSA 73mm",
    "Kettenblatt Abstufung": "32",
    "Kurbel": "SRAM NX Eagle",
    "Bremsen": "Tektro HD-M275/276 | 160/160mm",
    "Sattelstütze Modell": "Promax SP-2019",
    "Sattel": "WTB Volt Medium",
    "Lenker": "Surly Sunset",
    "Vorbau": "Sunday Freeze Stem Top-Load",
    "Gabel": "4130 Chromoly",
    "Steuersatz": "FSA Orbit ITA",
    "Rahmen": "Surly Lowside 4130 CroMo",
    "Abstufung Kassette": "17",
    "Schaltungsart": "Keine",
    "Art der Bremse": "Scheibenbremse",
    "Laufradgröße": "27,5\" / 650B (584mm)",
    "Griffe": "Sunday Odyssey",
    "Sattelstütze": "Sattelstütze starr",
    "Hinterbau": "Ungefedert",
    "Reifen": "Maxxis Rekon+ | 27.5\" x 2.8\"",
    "Maximale Reifenbreite": "71mm",
    "Bremsbetätigung": "Hydraulisch",
    "Modelljahr": "2026",
    "Kollektion": "Ganzjährig",
    "Farbe": "Blau",
    "Gabel Bauart": "Starrgabel",
    "Gewicht": "12730g",
    "Zugverlegung": "extern",
    "Quelle Gewicht": "Hersteller",
    "Gewogene Variante": "M",
    "Produktserie": "Surly - Lowside",
    "Schaltstufen": "1 x 1 (Single Speed)",
    "Rahmenform": "Diamant",
    "GTIN": "708752508118, 708752508132, 708752508156, 708752508170",
    "Herstellerseite": "http://www.surlybikes.com/"
  },
  "rawFeatures": [],
  "rawSizes": [
    {
      "rawSize": "S",
      "size": "S",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 1,
      "price": null
    },
    {
      "rawSize": "M - ausverkauft - benachrichtigen lassen",
      "size": null,
      "sizeCm": null,
      "inStock": null,
      "stockCount": null,
      "price": null
    },
    {
      "rawSize": "L",
      "size": "L",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 2,
      "price": null
    },
    {
      "rawSize": "XL",
      "size": "XL",
      "sizeCm": null,
      "inStock": true,
      "stockCount": 1,
      "price": null
    },
    {
      "rawSize": "M",
      "size": "M",
      "sizeCm": null,
      "inStock": false,
      "stockCount": null,
      "price": null
    }
  ],
  "availabilityText": "https://schema.org/InStock",
  "fetchedAt": "2026-09-19T05:27:36.801Z",
  "sourceMeta": {
    "skus": [
      "708752508118",
      "708752508132",
      "708752508156",
      "708752508170"
    ],
    "startingPrice": false,
    "discountInPercent": 4,
    "articleNumber": "SRB766570"
  }
}

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