← Review table (gravel) · shopper page
zweirad-stadler:bulls-grinder-1-gravel-bike-28-grau-kaufen · source URL · confidence 0.83
Can win a band.
| retailer label | alpha | comparable cm | match | mapping | in stock | variant price | evidence |
|---|---|---|---|---|---|---|---|
| 47 cm | — | 47 cm | exact scale | stated by the retailer | yes | listing price | 47 cm |
| 51 cm | — | 51 cm | exact scale | stated by the retailer | yes | listing price | 51 cm |
| 55 cm | — | 55 cm | exact scale | stated by the retailer | yes | listing price | 55 cm |
A shopper asking for: 54 → 55 cm in stock · 56 → 55 cm in stock · 58 → nothing compatible · 60 → nothing compatible
Canonical configuration: Bulls | Grinder 1 Gravel Bike 28" | Claris
Confidence: medium
| retailer | price | sizes in stock | |
|---|---|---|---|
| Zweirad Stadler | €992 | 47 cm, 51 cm, 55 cm | debug |
| Zweirad Stadler | €992 | 55 cm | debug |
| Zweirad Stadler | €992 | 47 cm, 51 cm | debug |
| field | source | evidence |
|---|---|---|
| brand | retailer:zweirad-stadler / parse | Bulls |
| model | retailer:zweirad-stadler / derived | Bulls Grinder 1 Gravel Bike 28" grau |
| category | retailer:zweirad-stadler / parse | Grinder |
| frameMaterial | retailer:zweirad-stadler / parse | Aluminium |
| groupsetFamily | retailer:zweirad-stadler / dictionary | Shimano Claris ST-R2000 || Shimano Claris RD-R2000 || Shimano Claris FD-R2000 |
| electronicShifting | retailer:zweirad-stadler / derived | Shimano Claris ST-R2000 || Shimano Claris RD-R2000 || Shimano Claris FD-R2000 |
| speeds | retailer:zweirad-stadler / parse | model code R2000 |
| brakes | retailer:zweirad-stadler / parse | Mechanische Scheibenbremsen |
| suspension | retailer:zweirad-stadler / derived | no suspension fork and no rear shock on a drop-bar listing |
| fork | retailer:zweirad-stadler / dictionary | Aluminium Gabel |
| dropperPost | retailer:zweirad-stadler / derived | seatpost row "Bulls MTB-Sport" names no dropper, in a 29-field spec table |
| beltDrive | retailer:zweirad-stadler / parse | KMC |
| wheelSize | retailer:zweirad-stadler / parse | 28 |
| weightKg | retailer:zweirad-stadler / parse | Gewicht: ca. 12,47 kg |
| powerMeter | retailer:zweirad-stadler / derived | absent from a 29-field spec table |
| availability | retailer:zweirad-stadler / derived | 3 of 3 sizes orderable |
info wheel-material-unknown — Wheel material could not be established.{
"frameScore": 11,
"drivetrainScore": 6,
"wheelScore": 5,
"extrasScore": -2,
"suspensionScore": 0,
"weightAdjustment": -3,
"equipmentValue": 17,
"notes": [
"Shimano Claris = 6.",
"Wheels unknown: scored level with basic aluminium, which is neither a reward for omitting the wheelset nor a penalty for naming a cheap one.",
"Brakes \"mechanical-disc\" -2.",
"12.47 kg vs 10.4 kg gravel reference = -3."
],
"marketPrice": 987,
"valueScore": 0.995,
"savingsVsMarket": -5
}
{
"requested": [
"wheelMaterial",
"wheelTier"
],
"applied": [],
"rejected": [],
"notes": "Wheel material and tier cannot be determined from the source. The spec lists 'Felgen: Bulls DDM-22' and 'Laufradsatz: Bulls DDM-22' but gives no material; Bulls DDM-22 appears to be a house/model name and is not enough to assign a wheelTier.",
"raw": {
"frameMaterial": {
"value": "aluminium",
"evidence": "Material: Aluminium",
"confidence": 0.9
},
"groupsetBrand": {
"value": "Shimano",
"evidence": "Schaltwerk: Shimano Claris RD-R2000",
"confidence": 0.9
},
"groupsetFamily": {
"value": "Claris",
"evidence": "Shimano Claris 16-Gang Kettenschaltung",
"confidence": 0.9
},
"electronicShifting": {
"value": null,
"evidence": null,
"confidence": 0.5
},
"speeds": {
"value": "16",
"evidence": "Gänge: 16-Gang",
"confidence": 0.9
},
"mixedGroupset": {
"value": "false",
"evidence": "Schaltwerk: Shimano Claris RD-R2000\nUmwerfer: Shimano Claris FD-R2000\nSchalthebel: Shimano Claris ST-R2000\nKurbel: Shimano Claris FC-RS200 46/34 T",
"confidence": 0.9
},
"wheelMaterial": {
"value": null,
"evidence": null,
"confidence": 0.5
},
"wheelTier": {
"value": null,
"evidence": null,
"confidence": 0.5
},
"brakes": {
"value": "mechanical-disc",
"evidence": "Bremsenart: Mechanische Scheibenbremsen",
"confidence": 0.9
},
"weightKg": {
"value": "12.47",
"evidence": "Gewicht: ca. 12,47 kg",
"confidence": 0.9
},
"powerMeter": {
"value": null,
"evidence": null,
"confidence": 0.5
},
"notes": "Wheel material and tier cannot be determined from the source. The spec lists 'Felgen: Bulls DDM-22' and 'Laufradsatz: Bulls DDM-22' but gives no material; Bulls DDM-22 appears to be a house/model name and is not enough to assign a wheelTier."
}
}
{
"id": "zweirad-stadler:bulls-grinder-1-gravel-bike-28-grau-kaufen",
"retailer": "zweirad-stadler",
"retailerProductId": "bulls-grinder-1-gravel-bike-28-grau-kaufen",
"productUrl": "https://shop.zweirad-stadler.de/fahrrad-shop/rennraeder/gravel-bike/bulls-grinder-1-gravel-bike-28-grau-kaufen.html",
"brand": "Bulls",
"model": "Grinder 1 Gravel Bike 28\" grau",
"modelYear": null,
"category": "gravel",
"categoryBasis": "stated",
"sourceCategory": "gravel",
"price": 992,
"originalPrice": 1299,
"currency": "EUR",
"discountPercent": 24,
"frameMaterial": "aluminium",
"frameModel": null,
"frameTier": null,
"groupsetBrand": "Shimano",
"groupsetFamily": "Claris",
"groupsetGeneration": null,
"electronicShifting": false,
"speeds": 8,
"mixedGroupset": false,
"groupsetComponents": {
"shifters": "Claris",
"rearDerailleur": "Claris",
"frontDerailleur": "Claris",
"crank": "Claris"
},
"groupsetTierSpread": 0,
"crank": "Shimano Claris FC-RS200 46/34 T",
"cassette": null,
"brakes": "mechanical-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": "Bulls DDM-22",
"wheelMaterial": "unknown",
"wheelTier": "unknown",
"tyres": "VEE TIRE CO. Rail MPC",
"weightKg": 12.47,
"powerMeter": false,
"powerMeterKind": null,
"availableSizes": [
{
"rawSize": "47 cm",
"size": "47",
"sizeCm": 47,
"inStock": true,
"stockCount": null,
"price": null,
"deliveryNote": "7-14 Werktage"
},
{
"rawSize": "51 cm",
"size": "51",
"sizeCm": 51,
"inStock": true,
"stockCount": null,
"price": null,
"deliveryNote": "4-8 Werktage"
},
{
"rawSize": "55 cm",
"size": "55",
"sizeCm": 55,
"inStock": true,
"stockCount": null,
"price": null,
"deliveryNote": "4-8 Werktage"
}
],
"seller": null,
"availability": "in-stock",
"gtins": [],
"imageUrl": "https://shop.zweirad-stadler.de/out/pictures/generated/product/1/1500_1500_100/bulls-28-grinder1-gravelbike-grau-133155a.jpg",
"rawTitle": "Bulls Grinder 1 Gravel Bike 28\" grau",
"fetchedAt": "2026-09-19T06:31:40.154Z",
"normalizationConfidence": 0.83,
"warnings": [
{
"code": "wheel-material-unknown",
"message": "Wheel material could not be established.",
"severity": "info"
}
]
}
{
"Material": "Aluminium",
"Farbe": "grau",
"Gabel": "Aluminium Gabel",
"Steuersatz": "FSA Orbit C40 ACB (No. 42/ACB)",
"Schaltung": "Kettenschaltung",
"Gänge": "16-Gang",
"Schaltwerk": "Shimano Claris RD-R2000",
"Umwerfer": "Shimano Claris FD-R2000",
"Schalthebel": "Shimano Claris ST-R2000",
"Bremsenart": "Mechanische Scheibenbremsen",
"Bremsen": "Shimano BR-RS305",
"Bremsscheiben": "160 mm / 160 mm 6-Loch",
"Kurbel": "Shimano Claris FC-RS200 46/34 T",
"Kette": "KMC, HG-40",
"Lenker": "Bulls Gravel SL",
"Griffe": "Bulls Komfortlenkerband 3 mm",
"Sattelstütze Art": "Patent",
"Sattelstütze": "Bulls MTB-Sport",
"Sattel": "Bulls MTB-Sport",
"Laufradgröße": "28\"",
"Laufradsatz": "Bulls DDM-22",
"Felgen": "Bulls DDM-22",
"Reifen": "VEE TIRE CO. Rail MPC",
"Nabe vorne": "Formula DDM-22",
"Nabe hinten": "Formula CL-512",
"Gewicht": "ca. 12,47 kg",
"zul. Gesamtgewicht": "max. 125 kg",
"Rahmenform": "Gravel",
"Herstellerfarbe": "alpine grey"
}
{
"retailer": "zweirad-stadler",
"retailerProductId": "bulls-grinder-1-gravel-bike-28-grau-kaufen",
"productUrl": "https://shop.zweirad-stadler.de/fahrrad-shop/rennraeder/gravel-bike/bulls-grinder-1-gravel-bike-28-grau-kaufen.html",
"extractionMethod": "server-html",
"sourceCategory": "gravel",
"rawTitle": "Bulls Grinder 1 Gravel Bike 28\" grau",
"rawBrand": "Bulls",
"price": 992,
"originalPrice": 1299,
"currency": "EUR",
"imageUrl": "https://shop.zweirad-stadler.de/out/pictures/generated/product/1/1500_1500_100/bulls-28-grinder1-gravelbike-grau-133155a.jpg",
"rawSpecifications": {
"Material": "Aluminium",
"Farbe": "grau",
"Gabel": "Aluminium Gabel",
"Steuersatz": "FSA Orbit C40 ACB (No. 42/ACB)",
"Schaltung": "Kettenschaltung",
"Gänge": "16-Gang",
"Schaltwerk": "Shimano Claris RD-R2000",
"Umwerfer": "Shimano Claris FD-R2000",
"Schalthebel": "Shimano Claris ST-R2000",
"Bremsenart": "Mechanische Scheibenbremsen",
"Bremsen": "Shimano BR-RS305",
"Bremsscheiben": "160 mm / 160 mm 6-Loch",
"Kurbel": "Shimano Claris FC-RS200 46/34 T",
"Kette": "KMC, HG-40",
"Lenker": "Bulls Gravel SL",
"Griffe": "Bulls Komfortlenkerband 3 mm",
"Sattelstütze Art": "Patent",
"Sattelstütze": "Bulls MTB-Sport",
"Sattel": "Bulls MTB-Sport",
"Laufradgröße": "28\"",
"Laufradsatz": "Bulls DDM-22",
"Felgen": "Bulls DDM-22",
"Reifen": "VEE TIRE CO. Rail MPC",
"Nabe vorne": "Formula DDM-22",
"Nabe hinten": "Formula CL-512",
"Gewicht": "ca. 12,47 kg",
"zul. Gesamtgewicht": "max. 125 kg",
"Rahmenform": "Gravel",
"Herstellerfarbe": "alpine grey"
},
"rawFeatures": [
"0% Finanzierung ab 99,20 € möglich",
"Dienstrad-Leasing möglich",
"14 Tage kostenloses Rückgaberecht",
"Fahrrad vollständig montiert und mit wenigen Handgriffen fahrbereit",
"Mit einem Gravel-Rad ist man ähnlich wie mit einem Rennrad schnell auf Asphalt unterwegs. Im Gegensatz zum Renner kann man jedoch auch auf unbefestigten Wegen fahren. Der Claris Antrieb von Shimano sorgt beim Bulls Grinder 1 für flüssigen Gangwechsel.",
"Shimano Claris 16-Gang Kettenschaltung",
"Mechanische Scheibenbremsen",
"Zahlreiche Anschraubpunkte für Gepäck und Zubehör"
],
"rawSizes": [
{
"rawSize": "47 cm",
"size": "47",
"sizeCm": 47,
"inStock": true,
"stockCount": null,
"price": null,
"deliveryNote": "7-14 Werktage"
},
{
"rawSize": "51 cm",
"size": "51",
"sizeCm": 51,
"inStock": true,
"stockCount": null,
"price": null,
"deliveryNote": "4-8 Werktage"
},
{
"rawSize": "55 cm",
"size": "55",
"sizeCm": 55,
"inStock": true,
"stockCount": null,
"price": null,
"deliveryNote": "4-8 Werktage"
}
],
"availabilityText": "3 of 3 sizes orderable",
"fetchedAt": "2026-09-19T06:31:40.154Z",
"sourceMeta": {
"savingBadge": "307 € gespartauf UVP",
"deliveryWindows": [
"47 cm 7-14 Werktage",
"51 cm 4-8 Werktage",
"55 cm 4-8 Werktage"
]
}
}