← Review table (gravel) · shopper page
bikeexchange:megamo_jakar_base_29_2026 · source URL · confidence 0.9 · GTIN 8424735003334
Can win a band.
| retailer label | alpha | comparable cm | match | mapping | in stock | variant price | evidence |
|---|---|---|---|---|---|---|---|
| XS | XS | — | unknown | unsupported | yes | €999 | — |
| mapping | unsupported |
|---|---|
| reason | Megamo publishes no defensible conventional equivalence for its letter sizes. No accessible official geometry or sizing documentation. Retailers list letters only. |
A shopper asking for: 54 → nothing compatible · 56 → nothing compatible · 58 → nothing compatible · 60 → nothing compatible
Only listing of this configuration — nothing to merge.
| field | source | evidence |
|---|---|---|
| brand | retailer:bikeexchange / parse | megamo |
| model | retailer:bikeexchange / derived | megamo Jakar Base 29 |
| modelYear | retailer:bikeexchange / parse | Jahr: 2026 |
| category | retailer:bikeexchange / derived | retailer taxonomy |
| frameMaterial | retailer:bikeexchange / parse | Aluminium |
| groupsetFamily | retailer:bikeexchange / dictionary | Shimano ESSA U2030, 8 Speed || Shimano ESSA U2000, 8 Speed |
| electronicShifting | retailer:bikeexchange / derived | Shimano ESSA U2030, 8 Speed || Shimano ESSA U2000, 8 Speed |
| speeds | retailer:bikeexchange / parse | 8 Speed |
| brakePistons | retailer:bikeexchange / parse | 2-Piston |
| suspension | retailer:bikeexchange / derived | no suspension fork and no rear shock on a drop-bar listing |
| dropperPost | retailer:bikeexchange / derived | seatpost row "Megamo Ø27.2 mm x 300 mm" names no dropper, in a 15-field spec table |
| wheelMaterial | retailer:bikeexchange / parse | Aluminum |
| powerMeter | retailer:bikeexchange / derived | absent from a 15-field spec table |
| availability | retailer:bikeexchange / derived | sizes 1: 1 stocked, 0 gone, 0 unread |
| seller | retailer:bikeexchange / parse | XS: 2Rad Jessen |
info brake-actuation-unstated — The spec table says "Disc" 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 (XS).{
"frameScore": 11,
"drivetrainScore": 4,
"wheelScore": 5,
"extrasScore": 0,
"suspensionScore": 0,
"weightAdjustment": 0,
"equipmentValue": 20,
"notes": [
"Shimano Essa = 4.",
"Wheels unknown: scored level with basic aluminium, which is neither a reward for omitting the wheelset nor a penalty for naming a cheap one.",
"Weight not published: no weight adjustment either way."
],
"marketPrice": 1069,
"valueScore": 1.07,
"savingsVsMarket": 70
}
{
"requested": [
"wheelMaterial",
"wheelTier",
"brakes",
"weightKg"
],
"applied": [],
"rejected": [],
"notes": "Brakes: source lists \"Shimano RS305, 2-Piston Disc\" but does not explicitly state hydraulic vs mechanical, so brakes left null. WheelTier left null because wheels are the Megamo house model (unrecognised for tiering). Electronic shifting not stated explicitly, so left null. Weight not provided.",
"raw": {
"frameMaterial": {
"value": "aluminium",
"evidence": "Rahmenmaterial: Aluminium",
"confidence": 0.9
},
"groupsetBrand": {
"value": "Shimano",
"evidence": "Schalthebel: Shimano ESSA U2030, 8 Speed",
"confidence": 0.9
},
"groupsetFamily": {
"value": "Essa",
"evidence": "Schalthebel: Shimano ESSA U2030, 8 Speed",
"confidence": 0.9
},
"electronicShifting": {
"value": null,
"evidence": null,
"confidence": 0
},
"speeds": {
"value": "8",
"evidence": "Schalthebel: Shimano ESSA U2030, 8 Speed",
"confidence": 0.9
},
"mixedGroupset": {
"value": "true",
"evidence": "Kassette: Shimano HG300, 11-45T\nKurbelgarnitur: Megamo 38T, 165 mm\nSchalthebel: Shimano ESSA U2030, 8 Speed",
"confidence": 0.9
},
"wheelMaterial": {
"value": "aluminium",
"evidence": "Laufräder: Megamo 29 FW Disc, Aluminum Rim",
"confidence": 0.8
},
"wheelTier": {
"value": null,
"evidence": null,
"confidence": 0
},
"brakes": {
"value": null,
"evidence": null,
"confidence": 0
},
"weightKg": {
"value": null,
"evidence": null,
"confidence": 0
},
"powerMeter": {
"value": null,
"evidence": null,
"confidence": 0
},
"notes": "Brakes: source lists \"Shimano RS305, 2-Piston Disc\" but does not explicitly state hydraulic vs mechanical, so brakes left null. WheelTier left null because wheels are the Megamo house model (unrecognised for tiering). Electronic shifting not stated explicitly, so left null. Weight not provided."
}
}
{
"id": "bikeexchange:megamo_jakar_base_29_2026",
"retailer": "bikeexchange",
"retailerProductId": "megamo_jakar_base_29_2026",
"productUrl": "https://www.bikeexchange.de/de-DE/products/megamo_jakar_base_29_2026?sku=MEG_0000664733",
"brand": "Megamo",
"model": "Jakar Base 29",
"modelYear": 2026,
"category": "gravel",
"categoryBasis": "route",
"sourceCategory": "gravel",
"price": 999,
"originalPrice": null,
"currency": "EUR",
"discountPercent": null,
"frameMaterial": "aluminium",
"frameModel": null,
"frameTier": null,
"groupsetBrand": "Shimano",
"groupsetFamily": "Essa",
"groupsetGeneration": null,
"electronicShifting": false,
"speeds": 8,
"mixedGroupset": false,
"groupsetComponents": {
"shifters": "Essa",
"rearDerailleur": "Essa"
},
"groupsetTierSpread": 0,
"crank": "Megamo 38T, 165 mm",
"cassette": "Shimano HG300, 11-45T",
"brakes": "unknown",
"brakePistons": 2,
"brakeTier": "unknown",
"suspension": "none",
"fork": null,
"rearShock": null,
"dropperPost": false,
"beltDrive": null,
"hubDynamo": null,
"rack": null,
"mudguards": null,
"chaincase": null,
"kickstand": null,
"lighting": null,
"wheelSize": null,
"wheelset": "Megamo 29 FW Disc, Aluminum Rim",
"wheelMaterial": "aluminium",
"wheelTier": "unknown",
"tyres": "WTB Riddler 700 x 45c, Tan Sidewall",
"weightKg": null,
"powerMeter": false,
"powerMeterKind": null,
"availableSizes": [
{
"rawSize": "XS",
"size": "XS",
"sizeCm": null,
"inStock": true,
"stockCount": null,
"price": 999,
"seller": "2Rad Jessen",
"deliveryNote": "Reguläre Lieferzeit 7 Tage"
}
],
"seller": "2Rad Jessen",
"availability": "limited",
"gtins": [
"8424735003334"
],
"imageUrl": "https://images.cdn.europe-west1.gcp.commercetools.com/078b97e9-ed31-4c81-baae-cdd44f3bf3c1/58df76eb5a5704e85a00-IgYKh2_A.png",
"rawTitle": "megamo Jakar Base 29",
"fetchedAt": "2026-09-19T05:20:23.170Z",
"normalizationConfidence": 0.9,
"warnings": [
{
"code": "brake-actuation-unstated",
"message": "The spec table says \"Disc\" 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 (XS).",
"severity": "info"
}
]
}
{
"Rahmenmaterial": "Aluminium",
"Bremse": "Shimano RS305, 2-Piston Disc, 160 mm Rotors",
"Reifen": "WTB Riddler 700 x 45c, Tan Sidewall",
"Laufräder": "Megamo 29 FW Disc, Aluminum Rim",
"Naben": "Megamo, Front 9x100 mm QR, Rear 9x135 mm QR",
"Steuersatz": "FSA Orbit C-40-ACB, 1-1/8\" - 1.5\"",
"Lenker": "Megamo Alloy 31.8 x 360 mm",
"Kassette": "Shimano HG300, 11-45T",
"Kurbelgarnitur": "Megamo 38T, 165 mm",
"Schalthebel": "Shimano ESSA U2030, 8 Speed",
"Umwerfer hinten": "Shimano ESSA U2000, 8 Speed",
"Sattel": "Megamo Gravel Junior",
"Sattelstütze": "Megamo Ø27.2 mm x 300 mm",
"Gabel Bauart": "Starrgabel",
"Jahr": "2026"
}
{
"retailer": "bikeexchange",
"retailerProductId": "megamo_jakar_base_29_2026",
"productUrl": "https://www.bikeexchange.de/de-DE/products/megamo_jakar_base_29_2026?sku=MEG_0000664733",
"extractionMethod": "embedded-json",
"sourceCategory": "gravel",
"rawTitle": "megamo Jakar Base 29",
"rawBrand": "megamo",
"price": 999,
"originalPrice": null,
"currency": "EUR",
"imageUrl": "https://images.cdn.europe-west1.gcp.commercetools.com/078b97e9-ed31-4c81-baae-cdd44f3bf3c1/58df76eb5a5704e85a00-IgYKh2_A.png",
"rawSpecifications": {
"Rahmenmaterial": "Aluminium",
"Bremse": "Shimano RS305, 2-Piston Disc, 160 mm Rotors",
"Reifen": "WTB Riddler 700 x 45c, Tan Sidewall",
"Laufräder": "Megamo 29 FW Disc, Aluminum Rim",
"Naben": "Megamo, Front 9x100 mm QR, Rear 9x135 mm QR",
"Steuersatz": "FSA Orbit C-40-ACB, 1-1/8\" - 1.5\"",
"Lenker": "Megamo Alloy 31.8 x 360 mm",
"Kassette": "Shimano HG300, 11-45T",
"Kurbelgarnitur": "Megamo 38T, 165 mm",
"Schalthebel": "Shimano ESSA U2030, 8 Speed",
"Umwerfer hinten": "Shimano ESSA U2000, 8 Speed",
"Sattel": "Megamo Gravel Junior",
"Sattelstütze": "Megamo Ø27.2 mm x 300 mm",
"Gabel Bauart": "Starrgabel",
"Jahr": "2026"
},
"rawFeatures": [
"Aluminium",
"Shimano Essa",
"Beschreibung"
],
"rawSizes": [
{
"rawSize": "XS",
"size": "XS",
"sizeCm": null,
"inStock": true,
"stockCount": null,
"price": 999,
"seller": "2Rad Jessen",
"deliveryNote": "Reguläre Lieferzeit 7 Tage"
}
],
"availabilityText": "sizes 1: 1 stocked, 0 gone, 0 unread",
"fetchedAt": "2026-09-19T05:20:23.170Z",
"sourceMeta": {
"skus": [
"8424735003334"
],
"shopSkus": [
"MEG_0000664733",
"MEG_0000664733"
],
"seller": "2Rad Jessen",
"sellerOfSize": "XS",
"sellerId": "a0405e91-2eb4-421c-97d2-3bdc30a4e635",
"storeKey": "store_01KBQ6BFD08715DR46C72AQ8EB_eur",
"storeCity": "Kelheim",
"storeCountry": "DE",
"storeDelivers": true,
"storeClickAndCollect": true,
"storeReservation": true,
"storeDeliveryTime": "P7D",
"shippingPrice": 90,
"hasMoreSellers": false,
"condition": "NEW",
"ctProductId": "737582a5-3d3f-4e59-960d-13e08c272c5f",
"shopCategory": "Gravel",
"colourCount": 1,
"fetchedSku": "MEG_0000664733"
}
}