Cannondale Synapse Carbon 4 Chalk 2025-2027

rabe-bike:76331 · source URL · confidence 1

Eligibility

Can win a band.

Size decisions

retailer label	alpha	comparable cm	match	mapping	in stock	variant price	evidence
48cm	—	48 cm	exact scale	stated by the retailer	no	listing price	48cm
51cm	—	51 cm	exact scale	stated by the retailer	no	listing price	51cm
54cm	—	54 cm	exact scale	stated by the retailer	yes	€2.799	54cm
56cm	—	56 cm	exact scale	stated by the retailer	yes	€2.799	56cm
58cm	—	58 cm	exact scale	stated by the retailer	yes	€2.799	58cm
61cm	—	61 cm	exact scale	stated by the retailer	no	listing price	61cm
44cm	—	44 cm	exact scale	stated by the retailer	no	listing price	44cm

retailer label

alpha

comparable cm

match

mapping

in stock

variant price

evidence

48cm

—

48 cm

exact scale

stated by the retailer

listing price

48cm

51cm

—

51 cm

exact scale

stated by the retailer

listing price

51cm

54cm

—

54 cm

exact scale

stated by the retailer

yes

€2.799

54cm

56cm

—

56 cm

exact scale

stated by the retailer

yes

€2.799

56cm

58cm

—

58 cm

exact scale

stated by the retailer

yes

€2.799

58cm

61cm

—

61 cm

exact scale

stated by the retailer

listing price

61cm

44cm

—

44 cm

exact scale

stated by the retailer

listing price

44cm

A shopper asking for: 54 → 54cm in stock · 56 → 56cm in stock · 58 → 58cm in stock · 60 → 61cm fits but sold out

Identity

Canonical configuration: Cannondale | SYNAPSE CARBON 4 | 105 Di2 | 2026
Confidence: high

brand exact (Cannondale)
model normalized to "synapse 4"
groupset family exact (105 Di2)
GTIN match (0196870276536, 0196870276543, 0196870276550, +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
4 listings across 4 retailers

retailer	price	sizes in stock
RABE Bike	€2.799	54cm, 56cm, 58cm	debug
BIKER-BOARDER	€2.899	48 cm, 54 cm, 56 cm	debug
BIKE24	€2.939	48 cm, 61 cm	debug
Lucky Bike	€3.499	58 cm	debug

retailer

price

sizes in stock

RABE Bike

€2.799

54cm, 56cm, 58cm

debug

BIKER-BOARDER

€2.899

48 cm, 54 cm, 56 cm

debug

BIKE24

€2.939

48 cm, 61 cm

debug

Lucky Bike

€3.499

58 cm

debug

Provenance — why we believe each fact

field source evidence

brand retailer:rabe-bike / parse Cannondale

model retailer:rabe-bike / derived Cannondale Synapse Carbon 4 Chalk 2025-2027

modelYear retailer:rabe-bike / parse Cannondale Synapse Carbon 4 Chalk 2025-2027

category retailer:rabe-bike / derived retailer taxonomy

frameMaterial retailer:rabe-bike / parse Carbon

groupsetFamily retailer:rabe-bike / dictionary Shimano 105 Di2 R7170, wireless, 12-speed || Shimano 105 Di2 7150 || Shimano 105 Di2 7150, braze-on

electronicShifting retailer:rabe-bike / derived Di2

speeds retailer:rabe-bike / parse 12-speed

brakes retailer:rabe-bike / parse hydraulic disc

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

fork retailer:rabe-bike / dictionary Synapse Carbon, integrated crown race, 12x100mm thru-axle, flat mount disc, internal routing, 1-1/8" to 1-1/5" Delta ste

dropperPost retailer:rabe-bike / derived seatpost row "Cannondale C1 Aero 27 Carbon, SmartSense compatible, 0mm off" names no dropper, in a 24-field spec table

beltDrive retailer:rabe-bike / parse Shimano 105 Di2 7150, braze-on

wheelMaterial retailer:rabe-bike / dictionary DT Swiss R470

wheelTier retailer:rabe-bike / dictionary DT Swiss R470

weightKg retailer:rabe-bike / parse Gewicht: 8,7 kg (Gr. 54)

powerMeter retailer:rabe-bike / derived absent from a 24-field spec table

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

field	source	evidence
brand	`retailer:rabe-bike` / parse	Cannondale
model	`retailer:rabe-bike` / derived	Cannondale Synapse Carbon 4 Chalk 2025-2027
modelYear	`retailer:rabe-bike` / parse	Cannondale Synapse Carbon 4 Chalk 2025-2027
category	`retailer:rabe-bike` / derived	retailer taxonomy
frameMaterial	`retailer:rabe-bike` / parse	Carbon
groupsetFamily	`retailer:rabe-bike` / dictionary	Shimano 105 Di2 R7170, wireless, 12-speed \|\| Shimano 105 Di2 7150 \|\| Shimano 105 Di2 7150, braze-on
electronicShifting	`retailer:rabe-bike` / derived	Di2
speeds	`retailer:rabe-bike` / parse	12-speed
brakes	`retailer:rabe-bike` / parse	hydraulic disc
suspension	`retailer:rabe-bike` / derived	no suspension fork and no rear shock on a drop-bar listing
fork	`retailer:rabe-bike` / dictionary	Synapse Carbon, integrated crown race, 12x100mm thru-axle, flat mount disc, internal routing, 1-1/8" to 1-1/5" Delta ste
dropperPost	`retailer:rabe-bike` / derived	seatpost row "Cannondale C1 Aero 27 Carbon, SmartSense compatible, 0mm off" names no dropper, in a 24-field spec table
beltDrive	`retailer:rabe-bike` / parse	Shimano 105 Di2 7150, braze-on
wheelMaterial	`retailer:rabe-bike` / dictionary	DT Swiss R470
wheelTier	`retailer:rabe-bike` / dictionary	DT Swiss R470
weightKg	`retailer:rabe-bike` / parse	Gewicht: 8,7 kg (Gr. 54)
powerMeter	`retailer:rabe-bike` / derived	absent from a 24-field spec table
availability	`retailer:rabe-bike` / derived	delivery 3-5 days

Warnings

none

Score breakdown

{
  "frameScore": 26,
  "drivetrainScore": 27,
  "wheelScore": 9,
  "extrasScore": 3,
  "suspensionScore": 0,
  "weightAdjustment": 0.6,
  "equipmentValue": 65.6,
  "notes": [
    "Shimano 105 Di2 = 27.",
    "Wheels \"good-aluminium\" = 9.",
    "Brakes \"hydraulic-disc\" +3.",
    "8.7 kg vs 8.9 kg road reference = +0.6."
  ],
  "marketPrice": 3440,
  "valueScore": 1.229,
  "savingsVsMarket": 641
}

AI normalization

Not used: deterministic parsing resolved every field it needed.

Normalized record

{
  "id": "rabe-bike:76331",
  "retailer": "rabe-bike",
  "retailerProductId": "76331",
  "productUrl": "https://www.rabe-bike.de/en/cannondale-synapse-4-chalk-2025",
  "brand": "Cannondale",
  "model": "Synapse Carbon 4 Chalk -",
  "modelYear": 2027,
  "category": "road",
  "categoryBasis": "route",
  "sourceCategory": "road",
  "price": 2799,
  "originalPrice": 3499,
  "currency": "EUR",
  "discountPercent": 20,
  "frameMaterial": "carbon",
  "frameModel": "Synapse Carbon, Proportional Response construction, integrated cable routing, downtube Stashport, 12x142 thru-axle, UDH, BSA 68mm threaded BB, flat mount disc, ",
  "frameTier": null,
  "groupsetBrand": "Shimano",
  "groupsetFamily": "105 Di2",
  "groupsetGeneration": null,
  "electronicShifting": true,
  "speeds": 12,
  "mixedGroupset": false,
  "groupsetComponents": {
    "shifters": "105 Di2",
    "rearDerailleur": "105 Di2",
    "frontDerailleur": "105 Di2",
    "crank": "105",
    "cassette": "105"
  },
  "groupsetTierSpread": 0,
  "crank": "Shimano 105 7100, BSA, 50/34",
  "cassette": "Shimano 105 7100, 11-34, 12-speed",
  "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": "DT Swiss R470 db, 28h | Shimano RS470, 12x100mm centerlock | Shimano RS470, 12x142mm centerlock",
  "wheelMaterial": "aluminium",
  "wheelTier": "good-aluminium",
  "tyres": "Vittoria Rubino Pro IV, 700x32c",
  "weightKg": 8.7,
  "powerMeter": false,
  "powerMeterKind": null,
  "availableSizes": [
    {
      "rawSize": "48cm",
      "size": "48",
      "sizeCm": 48,
      "inStock": false,
      "stockCount": 0,
      "price": null
    },
    {
      "rawSize": "51cm",
      "size": "51",
      "sizeCm": 51,
      "inStock": false,
      "stockCount": 0,
      "price": null
    },
    {
      "rawSize": "54cm",
      "size": "54",
      "sizeCm": 54,
      "inStock": true,
      "stockCount": 1,
      "price": 2799
    },
    {
      "rawSize": "56cm",
      "size": "56",
      "sizeCm": 56,
      "inStock": true,
      "stockCount": 1,
      "price": 2799
    },
    {
      "rawSize": "58cm",
      "size": "58",
      "sizeCm": 58,
      "inStock": true,
      "stockCount": 1,
      "price": 2799
    },
    {
      "rawSize": "61cm",
      "size": "61",
      "sizeCm": 61,
      "inStock": false,
      "stockCount": 0,
      "price": null
    },
    {
      "rawSize": "44cm",
      "size": "44",
      "sizeCm": 44,
      "inStock": false,
      "stockCount": 0,
      "price": null
    }
  ],
  "seller": null,
  "availability": "in-stock",
  "gtins": [],
  "imageUrl": "https://www.rabe-bike.de/img/450/300/resize/catalog/product/c/2/c25_c12265u_synapse_crb_4_chk_pd_2.jpg",
  "rawTitle": "Cannondale Synapse Carbon 4 Chalk 2025-2027",
  "fetchedAt": "2026-09-19T06:18:23.171Z",
  "normalizationConfidence": 1,
  "warnings": []
}

Parsed specification table

{
  "Rahmen": "Synapse Carbon, Proportional Response construction, integrated cable routing, downtube Stashport, 12x142 thru-axle, UDH, BSA 68mm threaded BB, flat mount disc, integrated seat binder, SmartSense Gen 2.0 compatible, fender mounts",
  "Gabel": "Synapse Carbon, integrated crown race, 12x100mm thru-axle, flat mount disc, internal routing, 1-1/8\" to 1-1/5\" Delta steerer, 55mm offset, fender mounts",
  "Schaltwerk": "Shimano 105 Di2 7150",
  "Umwerfer": "Shimano 105 Di2 7150, braze-on",
  "Schalthebel": "Shimano 105 Di2 R7170, wireless, 12-speed",
  "Bremshebel": "Shimano 105 Di2 7170 hydraulic disc",
  "Kurbel": "Shimano 105 7100, BSA, 50/34",
  "Kassette": "Shimano 105 7100, 11-34, 12-speed",
  "Kette": "Shimano 105 7100, 12-speed",
  "Bremsen": "Shimano 105 7170 hydraulic disc, 160/160mm RT70 rotors",
  "Felgen": "DT Swiss R470 db, 28h",
  "Nabe vorn": "Shimano RS470, 12x100mm centerlock",
  "Nabe hinten": "Shimano RS470, 12x142mm centerlock",
  "Reifen": "Vittoria Rubino Pro IV, 700x32c",
  "Sattel": "Fizik Vento Argo X5, 140mm",
  "Sattelstütze": "Cannondale C1 Aero 27 Carbon, SmartSense compatible, 0mm offset (44-48cm), 20mm offset (51-61cm)",
  "Lenker": "Vision Trimax Aero Alloy",
  "Vorbau": "Cannondale C1 Conceal, Alloy, 31.8, -6°",
  "Steuersatz": "Integrated, 1-1/8\" - 1-1/2\"",
  "Griffe": "Cannondale Bar Tape, 3.5mm",
  "Gewicht": "8,7 kg (Gr. 54)",
  "Systemgewicht": "150 kg",
  "Rahmenmaterial": "Carbon",
  "Bremsenhersteller": "Shimano"
}

Raw adapter output

{
  "retailer": "rabe-bike",
  "retailerProductId": "76331",
  "productUrl": "https://www.rabe-bike.de/en/cannondale-synapse-4-chalk-2025",
  "extractionMethod": "server-html",
  "sourceCategory": "road",
  "rawTitle": "Cannondale Synapse Carbon 4 Chalk 2025-2027",
  "rawBrand": "Cannondale",
  "price": 2799,
  "originalPrice": 3499,
  "currency": "EUR",
  "imageUrl": "https://www.rabe-bike.de/img/450/300/resize/catalog/product/c/2/c25_c12265u_synapse_crb_4_chk_pd_2.jpg",
  "rawSpecifications": {
    "Rahmen": "Synapse Carbon, Proportional Response construction, integrated cable routing, downtube Stashport, 12x142 thru-axle, UDH, BSA 68mm threaded BB, flat mount disc, integrated seat binder, SmartSense Gen 2.0 compatible, fender mounts",
    "Gabel": "Synapse Carbon, integrated crown race, 12x100mm thru-axle, flat mount disc, internal routing, 1-1/8\" to 1-1/5\" Delta steerer, 55mm offset, fender mounts",
    "Schaltwerk": "Shimano 105 Di2 7150",
    "Umwerfer": "Shimano 105 Di2 7150, braze-on",
    "Schalthebel": "Shimano 105 Di2 R7170, wireless, 12-speed",
    "Bremshebel": "Shimano 105 Di2 7170 hydraulic disc",
    "Kurbel": "Shimano 105 7100, BSA, 50/34",
    "Kassette": "Shimano 105 7100, 11-34, 12-speed",
    "Kette": "Shimano 105 7100, 12-speed",
    "Bremsen": "Shimano 105 7170 hydraulic disc, 160/160mm RT70 rotors",
    "Felgen": "DT Swiss R470 db, 28h",
    "Nabe vorn": "Shimano RS470, 12x100mm centerlock",
    "Nabe hinten": "Shimano RS470, 12x142mm centerlock",
    "Reifen": "Vittoria Rubino Pro IV, 700x32c",
    "Sattel": "Fizik Vento Argo X5, 140mm",
    "Sattelstütze": "Cannondale C1 Aero 27 Carbon, SmartSense compatible, 0mm offset (44-48cm), 20mm offset (51-61cm)",
    "Lenker": "Vision Trimax Aero Alloy",
    "Vorbau": "Cannondale C1 Conceal, Alloy, 31.8, -6°",
    "Steuersatz": "Integrated, 1-1/8\" - 1-1/2\"",
    "Griffe": "Cannondale Bar Tape, 3.5mm",
    "Gewicht": "8,7 kg (Gr. 54)",
    "Systemgewicht": "150 kg",
    "Rahmenmaterial": "Carbon",
    "Bremsenhersteller": "Shimano"
  },
  "rawFeatures": [
    "The new Cannondale Synapse 4 is here. What's the difference to the previous model? Everything. It is more comfortable, more aerodynamically efficient and more elegantly integrated. It has room for much larger tyres, a StashPort in the down tube and a reliable Shimano 105 Di2 2x12 groupset to conquer all the hills, mountains and roads of the world. More features, less weight and all while retaining the great Synapse ride feel!"
  ],
  "rawSizes": [
    {
      "rawSize": "48cm",
      "size": "48",
      "sizeCm": 48,
      "inStock": false,
      "stockCount": 0,
      "price": null
    },
    {
      "rawSize": "51cm",
      "size": "51",
      "sizeCm": 51,
      "inStock": false,
      "stockCount": 0,
      "price": null
    },
    {
      "rawSize": "54cm",
      "size": "54",
      "sizeCm": 54,
      "inStock": true,
      "stockCount": 1,
      "price": 2799
    },
    {
      "rawSize": "56cm",
      "size": "56",
      "sizeCm": 56,
      "inStock": true,
      "stockCount": 1,
      "price": 2799
    },
    {
      "rawSize": "58cm",
      "size": "58",
      "sizeCm": 58,
      "inStock": true,
      "stockCount": 1,
      "price": 2799
    },
    {
      "rawSize": "61cm",
      "size": "61",
      "sizeCm": 61,
      "inStock": false,
      "stockCount": 0,
      "price": null
    },
    {
      "rawSize": "44cm",
      "size": "44",
      "sizeCm": 44,
      "inStock": false,
      "stockCount": 0,
      "price": null
    }
  ],
  "availabilityText": "delivery 3-5 days",
  "fetchedAt": "2026-09-19T06:18:23.171Z",
  "sourceMeta": {
    "sku": "76331",
    "listingPath": "/en/road-bike/road",
    "soldOut": 0,
    "netFinalPrice": 2352.1008403361348,
    "inStockSizesOnListing": [
      "54cm",
      "56cm",
      "58cm"
    ],
    "childCount": 7
  }
}

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