← Review table (mtb) · shopper page
bikeexchange:stevens-tonga-29--2022 · source URL · confidence 0.78 · GTIN 4045985033847
Cannot win: suspension type not stated, so it is in neither calibration unit
| retailer label | alpha | comparable cm | match | mapping | in stock | variant price | evidence |
|---|---|---|---|---|---|---|---|
| 20" | 50.8cm | — | 50.8 cm | exact scale | stated by the retailer | yes | €679 | 20" | 50.8cm |
| 22" | 55.9cm | — | 55.9 cm | exact scale | stated by the retailer | yes | €749 | 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: 2022 |
| category | retailer:bikeexchange / derived | retailer taxonomy |
| frameMaterial | retailer:bikeexchange / parse | Carbon |
| electronicShifting | retailer:bikeexchange / derived | Di2 |
| speeds | retailer:bikeexchange / parse | model code M8100 |
| suspension | retailer:bikeexchange / derived | no fork or rear-shock row, on a route where neither is the default |
| fork | retailer:bikeexchange / parse | STEVENS Full Carbon SL |
| dropperPost | retailer:bikeexchange / derived | seatpost row "Scorpo Carbon Road" names no dropper, in a 26-field spec table |
| beltDrive | retailer:bikeexchange / parse | Shimano Ultegra Di2 |
| wheelSize | retailer:bikeexchange / parse | 29 |
| weightKg | retailer:bikeexchange / parse | Gewicht*: 8,2 kg |
| powerMeter | retailer:bikeexchange / derived | absent from a 26-field spec table |
| availability | retailer:bikeexchange / derived | sizes 2: 2 stocked, 0 gone, 0 unread |
| seller | retailer:bikeexchange / parse | 20" | 50.8cm: Velovita Rad Sport GmbH |
| groupsetFamily | ai / ai (0.95) | Shimano Alivio Shadow |
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 wheel-material-unknown — Wheel material could not be established.info mixed-groupset — Not a uniform groupset: {}. Ranked on the shifting level, with a penalty.{
"frameScore": 26,
"drivetrainScore": 9,
"wheelScore": 5,
"extrasScore": 0,
"suspensionScore": 0,
"weightAdjustment": 4,
"equipmentValue": 44,
"notes": [
"Shimano Alivio = 9.",
"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.",
"8.2 kg vs 14.4 kg mtb-hardtail reference = +4.",
"Fork series not stated: scored at the bottom of the fork ladder rather than assumed."
],
"marketPrice": null,
"valueScore": null,
"savingsVsMarket": null
}
{
"requested": [
"groupsetFamily",
"wheelMaterial",
"wheelTier",
"brakes"
],
"applied": [
"groupsetFamily"
],
"rejected": [],
"notes": "FEATURES lists both 'Aluminium' while SPECIFICATIONS gives 'Rahmen: Carbon SL Fiber' — frameMaterial set from the explicit 'Rahmen' line. Brakes are specified only as 'Scheibenbremse' (disc) with no indication whether hydraulic or mechanical, so brakes left null. Wheel model names are given (DT Swiss C 1800 Spline) but the source does not state wheel material or tier explicitly, so wheelMaterial and wheelTier are null. Speeds (cassette tooth count / number of sprockets) not stated. Mixed groupset true because shifting items and crank are from different named families (Alivio, Ultegra, FSA).",
"raw": {
"frameMaterial": {
"value": "carbon",
"evidence": "Rahmen: Carbon SL Fiber",
"confidence": 0.9
},
"groupsetBrand": {
"value": "Shimano",
"evidence": "Shimano Alivio Shadow",
"confidence": 0.95
},
"groupsetFamily": {
"value": "Alivio",
"evidence": "Shimano Alivio Shadow",
"confidence": 0.95
},
"electronicShifting": {
"value": "true",
"evidence": "Umwerfer vorne: Shimano Ultegra Di2",
"confidence": 0.95
},
"speeds": {
"value": null,
"evidence": null,
"confidence": 0.3
},
"mixedGroupset": {
"value": "true",
"evidence": "Umwerfer vorne: Shimano Ultegra Di2\nKassette: Shimano Ultegra\nSchaltung: Shimano Alivio Shadow\nKurbelgarnitur: FSA SL-K Light",
"confidence": 0.9
},
"wheelMaterial": {
"value": null,
"evidence": null,
"confidence": 0.3
},
"wheelTier": {
"value": null,
"evidence": null,
"confidence": 0.3
},
"brakes": {
"value": null,
"evidence": "Art der Bremse: Scheibenbremse",
"confidence": 0.4
},
"weightKg": {
"value": "8.2",
"evidence": "Gewicht*: 8,2 kg",
"confidence": 0.9
},
"powerMeter": {
"value": null,
"evidence": null,
"confidence": 0.3
},
"notes": "FEATURES lists both 'Aluminium' while SPECIFICATIONS gives 'Rahmen: Carbon SL Fiber' — frameMaterial set from the explicit 'Rahmen' line. Brakes are specified only as 'Scheibenbremse' (disc) with no indication whether hydraulic or mechanical, so brakes left null. Wheel model names are given (DT Swiss C 1800 Spline) but the source does not state wheel material or tier explicitly, so wheelMaterial and wheelTier are null. Speeds (cassette tooth count / number of sprockets) not stated. Mixed groupset true because shifting items and crank are from different named families (Alivio, Ultegra, FSA)."
}
}
{
"id": "bikeexchange:stevens-tonga-29--2022",
"retailer": "bikeexchange",
"retailerProductId": "stevens-tonga-29--2022",
"productUrl": "https://www.bikeexchange.de/de-DE/products/stevens-tonga-29--2022?sku=STE_0000030670",
"brand": "Stevens",
"model": "Tonga 29\"",
"modelYear": 2022,
"category": "mtb",
"categoryBasis": "route",
"sourceCategory": "mtb",
"price": 679,
"originalPrice": 749,
"currency": "EUR",
"discountPercent": 9,
"frameMaterial": "carbon",
"frameModel": "Carbon SL Fiber",
"frameTier": null,
"groupsetBrand": "Shimano",
"groupsetFamily": "Alivio",
"groupsetGeneration": null,
"electronicShifting": false,
"speeds": 12,
"mixedGroupset": true,
"groupsetComponents": null,
"groupsetTierSpread": 0,
"crank": "FSA SL-K Light",
"cassette": "Shimano Ultegra",
"brakes": "unknown",
"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": "29",
"wheelset": "DT Swiss C 1800 Spline",
"wheelMaterial": "unknown",
"wheelTier": "unknown",
"tyres": "Schwalbe X-One Allround Evolution",
"weightKg": 8.2,
"powerMeter": false,
"powerMeterKind": null,
"availableSizes": [
{
"rawSize": "20\" | 50.8cm",
"size": null,
"sizeCm": null,
"inStock": true,
"stockCount": null,
"price": 679,
"seller": "Velovita Rad Sport GmbH",
"deliveryNote": "Reguläre Lieferzeit 6 Tage"
},
{
"rawSize": "22\" | 55.9cm",
"size": null,
"sizeCm": null,
"inStock": true,
"stockCount": null,
"price": 749,
"seller": null,
"deliveryNote": null
}
],
"seller": "Velovita Rad Sport GmbH",
"availability": "in-stock",
"gtins": [
"4045985033847"
],
"imageUrl": "https://images.cdn.europe-west1.gcp.commercetools.com/078b97e9-ed31-4c81-baae-cdd44f3bf3c1/aff2d9a356bb0fd4362f--WtpK6or.jpg",
"rawTitle": "Stevens Tonga 29\"",
"fetchedAt": "2026-09-19T05:38:11.501Z",
"normalizationConfidence": 0.78,
"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": "wheel-material-unknown",
"message": "Wheel material could not be established.",
"severity": "info"
},
{
"code": "mixed-groupset",
"message": "Not a uniform groupset: {}. Ranked on the shifting level, with a penalty.",
"severity": "info"
}
]
}
{
"Gewicht*": "8,2 kg",
"Rahmen": "Carbon SL Fiber",
"Zulässiges Gesamtgewicht": "115 kg",
"Bremsscheibe vorne": "SM-RT30",
"Bremse vorne": "Shimano Ultegra",
"Bremsscheiben": "RT-MT800",
"Bremsscheibe hinten": "SM-RT30",
"Art der Bremse": "Scheibenbremse",
"Bremse hinten": "Shimano Ultegra",
"Reifen": "Schwalbe X-One Allround Evolution",
"Laufrad vorne": "DT Swiss C 1800 Spline",
"Laufrad hinten": "DT Swiss C 1800 Spline",
"Vorbau": "FSA SMR",
"Steuersatz": "FSA No.55R 1.5\"",
"Lenker": "Oxygen Scorpo Aero",
"Umwerfer vorne": "Shimano Ultegra Di2",
"Kassette": "Shimano Ultegra",
"Schaltung": "Shimano Alivio Shadow",
"Kurbelgarnitur": "FSA SL-K Light",
"Schalt Bremsgriff": "Shimano Ultegra Di2",
"Kette / Riemen": "Shimnao CN-M8100",
"Sattel": "Oxygen Triton",
"Sattelstütze": "Scorpo Carbon Road",
"Gabel Bauart": "Federgabel",
"Gabel": "STEVENS Full Carbon SL",
"Jahr": "2022"
}
{
"retailer": "bikeexchange",
"retailerProductId": "stevens-tonga-29--2022",
"productUrl": "https://www.bikeexchange.de/de-DE/products/stevens-tonga-29--2022?sku=STE_0000030670",
"extractionMethod": "embedded-json",
"sourceCategory": "mtb",
"rawTitle": "Stevens Tonga 29\"",
"rawBrand": "Stevens",
"price": 679,
"originalPrice": 749,
"currency": "EUR",
"imageUrl": "https://images.cdn.europe-west1.gcp.commercetools.com/078b97e9-ed31-4c81-baae-cdd44f3bf3c1/aff2d9a356bb0fd4362f--WtpK6or.jpg",
"rawSpecifications": {
"Gewicht*": "8,2 kg",
"Rahmen": "Carbon SL Fiber",
"Zulässiges Gesamtgewicht": "115 kg",
"Bremsscheibe vorne": "SM-RT30",
"Bremse vorne": "Shimano Ultegra",
"Bremsscheiben": "RT-MT800",
"Bremsscheibe hinten": "SM-RT30",
"Art der Bremse": "Scheibenbremse",
"Bremse hinten": "Shimano Ultegra",
"Reifen": "Schwalbe X-One Allround Evolution",
"Laufrad vorne": "DT Swiss C 1800 Spline",
"Laufrad hinten": "DT Swiss C 1800 Spline",
"Vorbau": "FSA SMR",
"Steuersatz": "FSA No.55R 1.5\"",
"Lenker": "Oxygen Scorpo Aero",
"Umwerfer vorne": "Shimano Ultegra Di2",
"Kassette": "Shimano Ultegra",
"Schaltung": "Shimano Alivio Shadow",
"Kurbelgarnitur": "FSA SL-K Light",
"Schalt Bremsgriff": "Shimano Ultegra Di2",
"Kette / Riemen": "Shimnao CN-M8100",
"Sattel": "Oxygen Triton",
"Sattelstütze": "Scorpo Carbon Road",
"Gabel Bauart": "Federgabel",
"Gabel": "STEVENS Full Carbon SL",
"Jahr": "2022"
},
"rawFeatures": [
"Aluminium",
"Shimano Alivio Shadow",
"29\"",
"Beschreibung"
],
"rawSizes": [
{
"rawSize": "20\" | 50.8cm",
"size": null,
"sizeCm": null,
"inStock": true,
"stockCount": null,
"price": 679,
"seller": "Velovita Rad Sport GmbH",
"deliveryNote": "Reguläre Lieferzeit 6 Tage"
},
{
"rawSize": "22\" | 55.9cm",
"size": null,
"sizeCm": null,
"inStock": true,
"stockCount": null,
"price": 749,
"seller": null,
"deliveryNote": null
}
],
"availabilityText": "sizes 2: 2 stocked, 0 gone, 0 unread",
"fetchedAt": "2026-09-19T05:38:11.501Z",
"sourceMeta": {
"skus": [
"4045985033847"
],
"shopSkus": [
"STE_0000030670",
"STE_0000030670",
"STE_0000030672"
],
"seller": "Velovita Rad Sport GmbH",
"sellerOfSize": "20\" | 50.8cm",
"sellerId": "4747b76f-aff6-46fd-abaf-38b752718213",
"storeKey": "store_01KEEKFA4PFAZCACB5C8AHYER5_eur",
"storeCity": "Weißenburg in Bayern",
"storeCountry": "DE",
"storeDelivers": true,
"storeClickAndCollect": true,
"storeReservation": true,
"storeDeliveryTime": "P6D",
"shippingPrice": 90,
"hasMoreSellers": true,
"condition": "NEW",
"ctProductId": "d610d64b-988d-430c-a700-ac99c596d9eb",
"shopCategory": "Hardtail",
"colourCount": 1,
"fetchedSku": "STE_0000030670"
}
}