← Market map (road) · shopper page
bike24:1080534 · source URL · confidence 0.83 · GTIN 8718223022595, 8718223022632
Can win a band.
| retailer label | alpha | comparable cm | match | mapping | in stock | variant price | evidence |
|---|---|---|---|---|---|---|---|
| M | M | — | unknown | unsupported | yes | listing price | — |
| XL | XL | — | unknown | unsupported | yes | listing price | — |
| mapping | unsupported |
|---|---|
| reason | "M" is a letter size and there is no reviewed Isaac equivalence to convert it. |
A shopper asking for: 54 → nothing compatible · 56 → nothing compatible · 58 → nothing compatible · 60 → nothing compatible
Canonical configuration: Isaac | BOSON | Ultegra Di2 | 2026
Confidence: high
| retailer | price | sizes in stock | |
|---|---|---|---|
| BIKE24 | €3.199 | M, XL | debug |
| BIKE24 | €3.299 | L, XL | debug |
| BIKE24 | €3.299 | S, M, L, XL | debug |
| field | source | evidence |
|---|---|---|
| brand | retailer:bike24 / parse | Isaac |
| model | retailer:bike24 / derived | Isaac BOSON Carbon Rennrad - Shimano Ultegra/105 Di2 | Fore Four RD - 2026 - sonic silver |
| modelYear | retailer:bike24 / parse | Modelljahr: 2026 |
| category | retailer:bike24 / parse | Rennrad |
| frameMaterial | retailer:bike24 / parse | Carbon |
| frameTier | retailer:bike24 / dictionary | Dual 30 |
| groupsetFamily | retailer:bike24 / dictionary | Shimano Ultegra ST-R8170 || Shimano Ultegra RD-R8150 Di2 || Shimano Ultegra FD-R8150 Di2 |
| electronicShifting | retailer:bike24 / parse | Di2 |
| speeds | retailer:bike24 / parse | 2 x 12 |
| brakes | retailer:bike24 / parse | BR-R8170 |
| suspension | retailer:bike24 / derived | no suspension fork and no rear shock on a drop-bar listing |
| fork | retailer:bike24 / dictionary | Isaac Advanced Carbon Tech Dual 30 | Tapered (1-1/8" - 1.5") | 12x100mm |
| dropperPost | retailer:bike24 / derived | seatpost row says "starr" |
| beltDrive | retailer:bike24 / parse | Shimano Ultegra FD-R8150 Di2 |
| wheelSize | retailer:bike24 / parse | 28 |
| weightKg | retailer:bike24 / parse | Gewicht: 7740g |
| powerMeter | retailer:bike24 / derived | absent from a 46-field spec table |
| availability | retailer:bike24 / derived | https://schema.org/InStock |
info wheel-material-unknown — Wheel material could not be established.info mixed-groupset — Not a uniform groupset: {"shifters":"Ultegra Di2","rearDerailleur":"Ultegra Di2","frontDerailleur":"Ultegra Di2","crank":"105","cassette":"Ultegra"}. Ranked on the shifting level, with a penalty.{
"frameScore": 28,
"drivetrainScore": 31,
"wheelScore": 4,
"extrasScore": 4,
"suspensionScore": 0,
"weightAdjustment": 3.5,
"equipmentValue": 70.5,
"notes": [
"Frame tier \"mid\" +2.",
"Shimano Ultegra Di2 = 33.",
"Mixed groupset -2: crank is 105, 34 tier below Ultegra Di2.",
"Wheels unknown: scored below basic aluminium rather than assumed.",
"Brakes \"hydraulic-disc\" +3.",
"Tubeless-ready +1.",
"7.74 kg vs 8.9 kg road reference = +3.5."
],
"marketPrice": 3730,
"valueScore": 1.166,
"savingsVsMarket": 531
}
{
"requested": [
"wheelMaterial",
"wheelTier"
],
"applied": [],
"rejected": [],
"notes": "groupsetFamily is null because the source names Ultegra (ST-R8170, RD-R8150 Di2) and 105 (FC-R7100) components; the provided vocabulary expects a single family. wheelMaterial and wheelTier are not stated: only wheel model is given as \"Laufräder: Fore Four RD | Tubeless ready\", which does not establish material or a recognisable tier.",
"raw": {
"frameMaterial": {
"value": "carbon",
"evidence": "Material: Carbon",
"confidence": 0.95
},
"groupsetBrand": {
"value": "Shimano",
"evidence": "Schaltsystem (Hersteller): Shimano",
"confidence": 0.95
},
"groupsetFamily": {
"value": null,
"evidence": null,
"confidence": 0.2
},
"electronicShifting": {
"value": "true",
"evidence": "Schaltungsart: Kette - Elektronisch",
"confidence": 0.95
},
"speeds": {
"value": "12",
"evidence": "Schaltstufen: 2 x 12",
"confidence": 0.95
},
"mixedGroupset": {
"value": "true",
"evidence": "Schalthebel: Shimano Ultegra ST-R8170\nKurbel: Shimano 105 FC-R7100",
"confidence": 0.95
},
"wheelMaterial": {
"value": null,
"evidence": null,
"confidence": 0.2
},
"wheelTier": {
"value": null,
"evidence": null,
"confidence": 0.2
},
"brakes": {
"value": "hydraulic-disc",
"evidence": "Bremsen: Shimano Ultegra BR-R8170 | Centerlock | 160mm/140mm",
"confidence": 0.95
},
"weightKg": {
"value": "7.74",
"evidence": "Gewicht: 7740g",
"confidence": 0.95
},
"powerMeter": {
"value": null,
"evidence": null,
"confidence": 0.2
},
"notes": "groupsetFamily is null because the source names Ultegra (ST-R8170, RD-R8150 Di2) and 105 (FC-R7100) components; the provided vocabulary expects a single family. wheelMaterial and wheelTier are not stated: only wheel model is given as \"Laufräder: Fore Four RD | Tubeless ready\", which does not establish material or a recognisable tier."
}
}
{
"id": "bike24:1080534",
"retailer": "bike24",
"retailerProductId": "1080534",
"productUrl": "https://www.bike24.de/p11080534.html",
"brand": "Isaac",
"model": "BOSON Carbon",
"modelYear": 2026,
"category": "road",
"categoryBasis": "stated",
"sourceCategory": "road",
"price": 3199,
"originalPrice": 5549,
"currency": "EUR",
"discountPercent": 42,
"frameMaterial": "carbon",
"frameModel": "Isaac BOSON Advanced Carbon Tech Dual 30 | 1150g | 12x142mm",
"frameTier": "mid",
"groupsetBrand": "Shimano",
"groupsetFamily": "Ultegra Di2",
"groupsetGeneration": null,
"electronicShifting": true,
"speeds": 12,
"mixedGroupset": true,
"groupsetComponents": {
"shifters": "Ultegra Di2",
"rearDerailleur": "Ultegra Di2",
"frontDerailleur": "Ultegra Di2",
"crank": "105",
"cassette": "Ultegra"
},
"groupsetTierSpread": 34,
"crank": "Shimano 105 FC-R7100",
"cassette": "Shimano CS-R8101",
"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": "Fore Four RD | Tubeless ready",
"wheelMaterial": "unknown",
"wheelTier": "unknown",
"tyres": "Goodyear Eagle | 700x30C",
"weightKg": 7.74,
"ebike": null,
"powerMeter": false,
"powerMeterKind": null,
"availableSizes": [
{
"rawSize": "M",
"size": "M",
"sizeCm": null,
"inStock": true,
"stockCount": 3,
"price": null
},
{
"rawSize": "XL",
"size": "XL",
"sizeCm": null,
"inStock": true,
"stockCount": 3,
"price": null
}
],
"seller": null,
"availability": "in-stock",
"gtins": [
"8718223022595",
"8718223022632"
],
"imageUrl": "https://images.bike24.com/media/510/i/mb/af/12/25/boson-silver-105-dte1800-6-2170617.jpg",
"rawTitle": "Isaac BOSON Carbon Rennrad - Shimano Ultegra/105 Di2 | Fore Four RD - 2026 - sonic silver",
"fetchedAt": "2026-11-01T01:35:18.184Z",
"normalizationConfidence": 0.83,
"warnings": [
{
"code": "wheel-material-unknown",
"message": "Wheel material could not be established.",
"severity": "info"
},
{
"code": "mixed-groupset",
"message": "Not a uniform groupset: {\"shifters\":\"Ultegra Di2\",\"rearDerailleur\":\"Ultegra Di2\",\"frontDerailleur\":\"Ultegra Di2\",\"crank\":\"105\",\"cassette\":\"Ultegra\"}. Ranked on the shifting level, with a penalty.",
"severity": "info"
}
]
}
{
"Produktname": "Isaac BOSON Carbon Rennrad - Shimano Ultegra/105 Di2 | Fore Four RD - 2026 - sonic silver",
"Hersteller": "Isaac",
"Artikelnummer": "ISA788332",
"Aktivität": "Radfahren",
"Geschlecht": "Herren",
"Material": "Carbon",
"Radsport Einsatzbereich": "Rennrad, Endurance",
"Kette": "Shimano CN-M8100",
"Kassette": "Shimano CS-R8101",
"Schalthebel": "Shimano Ultegra ST-R8170",
"Schaltwerk": "Shimano Ultegra RD-R8150 Di2",
"Umwerfer": "Shimano Ultegra FD-R8150 Di2",
"Innenlager": "Shimano SM-BB72-41B | PressFit 86.5x41",
"Kettenblatt Abstufung": "50-34",
"Kurbel": "Shimano 105 FC-R7100",
"Bremsen": "Shimano Ultegra BR-R8170 | Centerlock | 160mm/140mm",
"Laufräder": "Fore Four RD | Tubeless ready",
"Sattelstütze Modell": "Carbon | 25mm Setback",
"Sattel": "Surface Powerbox | 244x148mm",
"Lenkerband": "Isaac Momentum",
"Lenker": "Airflow II | Carbon",
"Gabel": "Isaac Advanced Carbon Tech Dual 30 | Tapered (1-1/8\" - 1.5\") | 12x100mm",
"Steuersatz": "Token A-Box | IS52/28.6 | IS52/40",
"Rahmen": "Isaac BOSON Advanced Carbon Tech Dual 30 | 1150g | 12x142mm",
"Schaltsystem (Hersteller)": "Shimano",
"Abstufung Kassette": "11-12-13-14-15-17-19-21-24-27-30-34",
"Schaltungsart": "Kette - Elektronisch",
"Art der Bremse": "Scheibenbremse",
"Laufradgröße": "28\" (622mm)",
"Sattelstütze": "Sattelstütze starr",
"Hinterbau": "Ungefedert",
"Reifen": "Goodyear Eagle | 700x30C",
"Maximale Reifenbreite": "32mm",
"Bremsbetätigung": "Hydraulisch",
"Modelljahr": "2026",
"Farbe": "Grau",
"Gabel Bauart": "Starrgabel",
"Gewicht": "7740g",
"Zugverlegung": "vollintegriert",
"Quelle Gewicht": "Hersteller",
"Gewogene Variante": "L",
"Produktserie": "Isaac - Boson",
"Schaltstufen": "2 x 12",
"Rahmenform": "Diamant",
"GTIN": "8718223022595, 8718223022632",
"Herstellerseite": "https://www.isaac-cycle.com/en_US/#"
}
{
"retailer": "bike24",
"retailerProductId": "1080534",
"productUrl": "https://www.bike24.de/p11080534.html",
"extractionMethod": "embedded-json",
"sourceCategory": "road",
"rawTitle": "Isaac BOSON Carbon Rennrad - Shimano Ultegra/105 Di2 | Fore Four RD - 2026 - sonic silver",
"rawBrand": "Isaac",
"price": 3199,
"originalPrice": 5549,
"currency": "EUR",
"imageUrl": "https://images.bike24.com/media/510/i/mb/af/12/25/boson-silver-105-dte1800-6-2170617.jpg",
"rawSpecifications": {
"Produktname": "Isaac BOSON Carbon Rennrad - Shimano Ultegra/105 Di2 | Fore Four RD - 2026 - sonic silver",
"Hersteller": "Isaac",
"Artikelnummer": "ISA788332",
"Aktivität": "Radfahren",
"Geschlecht": "Herren",
"Material": "Carbon",
"Radsport Einsatzbereich": "Rennrad, Endurance",
"Kette": "Shimano CN-M8100",
"Kassette": "Shimano CS-R8101",
"Schalthebel": "Shimano Ultegra ST-R8170",
"Schaltwerk": "Shimano Ultegra RD-R8150 Di2",
"Umwerfer": "Shimano Ultegra FD-R8150 Di2",
"Innenlager": "Shimano SM-BB72-41B | PressFit 86.5x41",
"Kettenblatt Abstufung": "50-34",
"Kurbel": "Shimano 105 FC-R7100",
"Bremsen": "Shimano Ultegra BR-R8170 | Centerlock | 160mm/140mm",
"Laufräder": "Fore Four RD | Tubeless ready",
"Sattelstütze Modell": "Carbon | 25mm Setback",
"Sattel": "Surface Powerbox | 244x148mm",
"Lenkerband": "Isaac Momentum",
"Lenker": "Airflow II | Carbon",
"Gabel": "Isaac Advanced Carbon Tech Dual 30 | Tapered (1-1/8\" - 1.5\") | 12x100mm",
"Steuersatz": "Token A-Box | IS52/28.6 | IS52/40",
"Rahmen": "Isaac BOSON Advanced Carbon Tech Dual 30 | 1150g | 12x142mm",
"Schaltsystem (Hersteller)": "Shimano",
"Abstufung Kassette": "11-12-13-14-15-17-19-21-24-27-30-34",
"Schaltungsart": "Kette - Elektronisch",
"Art der Bremse": "Scheibenbremse",
"Laufradgröße": "28\" (622mm)",
"Sattelstütze": "Sattelstütze starr",
"Hinterbau": "Ungefedert",
"Reifen": "Goodyear Eagle | 700x30C",
"Maximale Reifenbreite": "32mm",
"Bremsbetätigung": "Hydraulisch",
"Modelljahr": "2026",
"Farbe": "Grau",
"Gabel Bauart": "Starrgabel",
"Gewicht": "7740g",
"Zugverlegung": "vollintegriert",
"Quelle Gewicht": "Hersteller",
"Gewogene Variante": "L",
"Produktserie": "Isaac - Boson",
"Schaltstufen": "2 x 12",
"Rahmenform": "Diamant",
"GTIN": "8718223022595, 8718223022632",
"Herstellerseite": "https://www.isaac-cycle.com/en_US/#"
},
"rawFeatures": [],
"rawSizes": [
{
"rawSize": "M",
"size": "M",
"sizeCm": null,
"inStock": true,
"stockCount": 3,
"price": null
},
{
"rawSize": "XL",
"size": "XL",
"sizeCm": null,
"inStock": true,
"stockCount": 3,
"price": null
}
],
"availabilityText": "https://schema.org/InStock",
"fetchedAt": "2026-11-01T01:35:18.184Z",
"sourceMeta": {
"skus": [
"8718223022595",
"8718223022632"
],
"startingPrice": false,
"discountInPercent": 42,
"articleNumber": "ISA788332"
}
}