← Review table (mtb) · shopper page
bikeexchange:stevens-tonga-29--2021 · source URL · confidence 0.73 · GTIN 4045985025460
Can win a band.
| retailer label | alpha | comparable cm | match | mapping | in stock | variant price | evidence |
|---|---|---|---|---|---|---|---|
| 22" | 55.9cm | — | 55.9 cm | exact scale | stated by the retailer | yes | €599 | 22" | 55.9cm |
A shopper asking for: 54 → nothing compatible · 56 → 22" | 55.9cm in stock · 58 → nothing compatible · 60 → nothing compatible
Only listing of this configuration — nothing to merge.
| field | source | evidence |
|---|---|---|
| brand | retailer:bikeexchange / parse | Stevens |
| model | retailer:bikeexchange / derived | Stevens Tonga 29" |
| modelYear | retailer:bikeexchange / parse | Jahr: 2021 |
| category | retailer:bikeexchange / derived | retailer taxonomy |
| frameMaterial | retailer:bikeexchange / parse | Aluminium |
| groupsetFamily | retailer:bikeexchange / dictionary | Shimano Acera || Shimano Altus |
| electronicShifting | retailer:bikeexchange / derived | Shimano Acera || Shimano Altus |
| brakeTier | retailer:bikeexchange / dictionary | BR-MT200 |
| brakePistons | retailer:bikeexchange / parse | Shimano caliper code BR-MT200 |
| suspension | retailer:bikeexchange / derived | suspension fork "SR Suntour XCM HLO" and no rear shock in a 25-field spec table |
| fork | retailer:bikeexchange / parse | SR Suntour XCM HLO |
| dropperPost | retailer:bikeexchange / derived | seatpost row "Oxygen Driver" names no dropper, in a 25-field spec table |
| beltDrive | retailer:bikeexchange / parse | CN-HG5 |
| wheelSize | retailer:bikeexchange / parse | 29 |
| weightKg | retailer:bikeexchange / parse | Gewicht*: 29" 14,6 kg |
| powerMeter | retailer:bikeexchange / derived | absent from a 25-field spec table |
| availability | retailer:bikeexchange / derived | sizes 1: 1 stocked, 0 gone, 0 unread |
| seller | retailer:bikeexchange / parse | 22" | 55.9cm: Fahrrad Gerth |
info brake-actuation-unstated — The spec table says "Scheibenbremse" without saying whether the disc brake is hydraulic or mechanical. Recorded as unknown; the two are not interchangeable to a buyer.info single-size-only — Only one size is in stock (22" | 55.9cm).info wheel-material-unknown — Wheel material could not be established.info mixed-groupset — Not a uniform groupset: {"shifters":"Acera","frontDerailleur":"Altus"}. Ranked on the shifting level, with a penalty.{
"frameScore": 11,
"drivetrainScore": 7,
"wheelScore": 5,
"extrasScore": 0,
"suspensionScore": 0,
"weightAdjustment": -0.3,
"equipmentValue": 22.7,
"notes": [
"Shimano Altus = 7.",
"Mixed groupset, but no crank or cassette below the family it is ranked as: no penalty.",
"Wheels unknown: scored level with basic aluminium, which is neither a reward for omitting the wheelset nor a penalty for naming a cheap one.",
"14.6 kg vs 14.4 kg mtb-hardtail reference = -0.3.",
"Fork series not stated: scored at the bottom of the fork ladder rather than assumed.",
"Brake series \"basic\" +0."
],
"marketPrice": 637,
"valueScore": 1.063,
"savingsVsMarket": 38
}
{
"requested": [
"wheelMaterial",
"wheelTier",
"brakes"
],
"applied": [],
"rejected": [],
"notes": "Wheels listed as \"Laufräder: Oxygen RM-M19\" but material and recognised tier not stated; cannot infer wheelMaterial or wheelTier. Brake type given only as \"Scheibenbremse\" and model \"Shimano BR-MT200\" appears, but source does not explicitly state hydraulic vs mechanical, so brakes set to null.",
"raw": {
"frameMaterial": {
"value": "aluminium",
"evidence": "Rahmen: Aluminium 6061",
"confidence": 0.9
},
"groupsetBrand": {
"value": "Shimano",
"evidence": "Schaltung: Shimano Alivio Shadow",
"confidence": 0.9
},
"groupsetFamily": {
"value": "Alivio",
"evidence": "Schaltung: Shimano Alivio Shadow",
"confidence": 0.85
},
"electronicShifting": {
"value": null,
"evidence": null,
"confidence": 0
},
"speeds": {
"value": null,
"evidence": null,
"confidence": 0
},
"mixedGroupset": {
"value": "true",
"evidence": "Umwerfer vorne: Shimano Altus\nKassette: Shimano CS-HG200\nSchaltung: Shimano Alivio Shadow\nKurbelgarnitur: Shimano FC-MT210-2\nSchalthebel: Shimano Acera",
"confidence": 0.9
},
"wheelMaterial": {
"value": null,
"evidence": null,
"confidence": 0
},
"wheelTier": {
"value": null,
"evidence": null,
"confidence": 0
},
"brakes": {
"value": null,
"evidence": "Art der Bremse: Scheibenbremse",
"confidence": 0.4
},
"weightKg": {
"value": "14.6",
"evidence": "Gewicht*: 29\" 14,6 kg",
"confidence": 0.9
},
"powerMeter": {
"value": null,
"evidence": null,
"confidence": 0
},
"notes": "Wheels listed as \"Laufräder: Oxygen RM-M19\" but material and recognised tier not stated; cannot infer wheelMaterial or wheelTier. Brake type given only as \"Scheibenbremse\" and model \"Shimano BR-MT200\" appears, but source does not explicitly state hydraulic vs mechanical, so brakes set to null."
}
}
{
"id": "bikeexchange:stevens-tonga-29--2021",
"retailer": "bikeexchange",
"retailerProductId": "stevens-tonga-29--2021",
"productUrl": "https://www.bikeexchange.de/de-DE/products/stevens-tonga-29--2021?sku=STE_0000029850",
"brand": "Stevens",
"model": "Tonga 29\"",
"modelYear": 2021,
"category": "mtb",
"categoryBasis": "route",
"sourceCategory": "mtb",
"price": 599,
"originalPrice": null,
"currency": "EUR",
"discountPercent": null,
"frameMaterial": "aluminium",
"frameModel": "Aluminium 6061",
"frameTier": null,
"groupsetBrand": "Shimano",
"groupsetFamily": "Altus",
"groupsetGeneration": null,
"electronicShifting": false,
"speeds": null,
"mixedGroupset": true,
"groupsetComponents": {
"shifters": "Acera",
"frontDerailleur": "Altus"
},
"groupsetTierSpread": 0,
"crank": "Shimano FC-MT210-2",
"cassette": "Shimano CS-HG200",
"brakes": "unknown",
"brakePistons": 2,
"brakeTier": "basic",
"suspension": "front",
"fork": {
"make": "SR Suntour",
"line": "XCM",
"tier": "unknown",
"travelMm": null
},
"rearShock": null,
"dropperPost": false,
"beltDrive": false,
"hubDynamo": null,
"rack": null,
"mudguards": null,
"chaincase": null,
"kickstand": null,
"lighting": null,
"wheelSize": "29",
"wheelset": "Oxygen RM-M19",
"wheelMaterial": "unknown",
"wheelTier": "unknown",
"tyres": "Schwalbe Smart Sam Active-Line",
"weightKg": 14.6,
"powerMeter": false,
"powerMeterKind": null,
"availableSizes": [
{
"rawSize": "22\" | 55.9cm",
"size": null,
"sizeCm": null,
"inStock": true,
"stockCount": null,
"price": 599,
"seller": "Fahrrad Gerth",
"deliveryNote": "Reguläre Lieferzeit 7 Tage"
}
],
"seller": "Fahrrad Gerth",
"availability": "limited",
"gtins": [
"4045985025460"
],
"imageUrl": "https://images.cdn.europe-west1.gcp.commercetools.com/078b97e9-ed31-4c81-baae-cdd44f3bf3c1/2e11953b0c31b26756eb-UrNuf-AQ.jpg",
"rawTitle": "Stevens Tonga 29\"",
"fetchedAt": "2026-09-19T05:38:15.032Z",
"normalizationConfidence": 0.73,
"warnings": [
{
"code": "brake-actuation-unstated",
"message": "The spec table says \"Scheibenbremse\" without saying whether the disc brake is hydraulic or mechanical. Recorded as unknown; the two are not interchangeable to a buyer.",
"severity": "info"
},
{
"code": "single-size-only",
"message": "Only one size is in stock (22\" | 55.9cm).",
"severity": "info"
},
{
"code": "wheel-material-unknown",
"message": "Wheel material could not be established.",
"severity": "info"
},
{
"code": "mixed-groupset",
"message": "Not a uniform groupset: {\"shifters\":\"Acera\",\"frontDerailleur\":\"Altus\"}. Ranked on the shifting level, with a penalty.",
"severity": "info"
}
]
}
{
"Gewicht*": "29\" 14,6 kg",
"Rahmen": "Aluminium 6061",
"Zulässiges Gesamtgewicht": "115 kg",
"Bremse": "Shimano BR-MT200",
"Art der Bremse": "Scheibenbremse",
"Bremshebel": "Shimano BL-MT200",
"Reifen": "Schwalbe Smart Sam Active-Line",
"Laufräder": "Oxygen RM-M19",
"Naben": "Shimano TX505-8",
"Vorbau": "Oxygen Driver",
"Steuersatz": "STEVENS MTB 1 1/8\"",
"Lenker": "Oxygen Driver",
"Umwerfer vorne": "Shimano Altus",
"Kassette": "Shimano CS-HG200",
"Schaltung": "Shimano Alivio Shadow",
"Kurbelgarnitur": "Shimano FC-MT210-2",
"Pedale": "MTB Flatpedal",
"Schalthebel": "Shimano Acera",
"Kette / Riemen": "Shimano CN-HG53",
"Sattel": "Oxygen Raceline",
"Sattelstütze": "Oxygen Driver",
"Gabel Bauart": "Federgabel",
"Gabelhersteller": "SR Suntour",
"Gabel": "SR Suntour XCM HLO",
"Jahr": "2021"
}
{
"retailer": "bikeexchange",
"retailerProductId": "stevens-tonga-29--2021",
"productUrl": "https://www.bikeexchange.de/de-DE/products/stevens-tonga-29--2021?sku=STE_0000029850",
"extractionMethod": "embedded-json",
"sourceCategory": "mtb",
"rawTitle": "Stevens Tonga 29\"",
"rawBrand": "Stevens",
"price": 599,
"originalPrice": null,
"currency": "EUR",
"imageUrl": "https://images.cdn.europe-west1.gcp.commercetools.com/078b97e9-ed31-4c81-baae-cdd44f3bf3c1/2e11953b0c31b26756eb-UrNuf-AQ.jpg",
"rawSpecifications": {
"Gewicht*": "29\" 14,6 kg",
"Rahmen": "Aluminium 6061",
"Zulässiges Gesamtgewicht": "115 kg",
"Bremse": "Shimano BR-MT200",
"Art der Bremse": "Scheibenbremse",
"Bremshebel": "Shimano BL-MT200",
"Reifen": "Schwalbe Smart Sam Active-Line",
"Laufräder": "Oxygen RM-M19",
"Naben": "Shimano TX505-8",
"Vorbau": "Oxygen Driver",
"Steuersatz": "STEVENS MTB 1 1/8\"",
"Lenker": "Oxygen Driver",
"Umwerfer vorne": "Shimano Altus",
"Kassette": "Shimano CS-HG200",
"Schaltung": "Shimano Alivio Shadow",
"Kurbelgarnitur": "Shimano FC-MT210-2",
"Pedale": "MTB Flatpedal",
"Schalthebel": "Shimano Acera",
"Kette / Riemen": "Shimano CN-HG53",
"Sattel": "Oxygen Raceline",
"Sattelstütze": "Oxygen Driver",
"Gabel Bauart": "Federgabel",
"Gabelhersteller": "SR Suntour",
"Gabel": "SR Suntour XCM HLO",
"Jahr": "2021"
},
"rawFeatures": [
"Aluminium",
"Shimano Alivio Shadow",
"29\"",
"Beschreibung"
],
"rawSizes": [
{
"rawSize": "22\" | 55.9cm",
"size": null,
"sizeCm": null,
"inStock": true,
"stockCount": null,
"price": 599,
"seller": "Fahrrad Gerth",
"deliveryNote": "Reguläre Lieferzeit 7 Tage"
}
],
"availabilityText": "sizes 1: 1 stocked, 0 gone, 0 unread",
"fetchedAt": "2026-09-19T05:38:15.032Z",
"sourceMeta": {
"skus": [
"4045985025460"
],
"shopSkus": [
"STE_0000029850",
"STE_0000029850"
],
"seller": "Fahrrad Gerth",
"sellerOfSize": "22\" | 55.9cm",
"sellerId": "a2c2c8e9-484b-4041-83e9-08d11dd818f4",
"storeKey": "store_01KBX7S6PKN2HJNFXKPCK12T04_eur",
"storeCity": "Schmölln",
"storeCountry": "DE",
"storeDelivers": null,
"storeClickAndCollect": null,
"storeReservation": true,
"storeDeliveryTime": "P7D",
"shippingPrice": 0,
"hasMoreSellers": false,
"condition": "NEW",
"ctProductId": "4b5ae665-2344-4531-9183-6bc31e4b7ac2",
"shopCategory": "Hardtail",
"colourCount": 1,
"fetchedSku": "STE_0000029850"
}
}