← Review table (mtb) · shopper page
rabe-bike:74551 · source URL · confidence 0.83
Can win a band.
| retailer label | alpha | comparable cm | match | mapping | in stock | variant price | evidence |
|---|---|---|---|---|---|---|---|
| M | M | — | unknown | unsupported | yes | €3.949 | — |
| L | L | — | unknown | unsupported | no | listing price | — |
| XL | XL | — | unknown | unsupported | no | listing price | — |
| mapping | unsupported |
|---|---|
| reason | Trek publishes no defensible conventional equivalence for its letter sizes. Trek states it 'recently transitioned Trek road bike sizing from numerical sizing to alpha sizing' and now publishes height and inseam only. The centimetre figures retailers print beside Trek letters are per-model seat-tube lengths, not size names: the same 'M' appears as 47.6 cm on a Madone and 50 cm on a Domane, and 'S' also appears as 47.6 cm. The only cm-to-letter statement Trek makes is partial — the Madone Gen 8 FAQ says 'Sizes 52cm and 54cm have been combined into one size (M) and size 62cm has been replaced with a new XL frame' — which accounts for two of eight old sizes and leaves 58 cm and 60 cm unresolved between L and XL. Any complete mapping would have to be invented, so Trek keeps its letters and its retailer-printed centimetres are discarded rather than read as conventional sizes. |
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:rabe-bike / parse | Trek |
| model | retailer:rabe-bike / derived | Trek Rail+ 8 Gen 5 Powersurge 2025-2026 |
| modelYear | retailer:rabe-bike / parse | Trek Rail+ 8 Gen 5 Powersurge 2025-2026 |
| category | retailer:rabe-bike / derived | retailer taxonomy |
| frameMaterial | retailer:rabe-bike / parse | Aluminium |
| groupsetFamily | retailer:rabe-bike / dictionary | Shimano SLX M7100, 12fach || Shimano XT M8100, langer Käfig |
| electronicShifting | retailer:rabe-bike / derived | Shimano SLX M7100, 12fach || Shimano XT M8100, langer Käfig |
| speeds | retailer:rabe-bike / parse | 12fach |
| brakes | retailer:rabe-bike / parse | hydraulic disc |
| brakeTier | retailer:rabe-bike / dictionary | DB 8 |
| brakePistons | retailer:rabe-bike / parse | 4-Kolben |
| suspension | retailer:rabe-bike / derived | suspension fork "RockShox ZEB Select, DebonAir Feder, Charger RC Dämpfer, kon" and no rear shock in a 17-field spec table |
| fork | retailer:rabe-bike / dictionary | RockShox ZEB Select, DebonAir Feder, Charger RC Dämpfer, konischer Gabelschaft, 44 mm Vorbiegung, Boost110, Maxle Stealt |
| dropperPost | retailer:rabe-bike / derived | Line Dropper |
| powerMeter | retailer:rabe-bike / derived | absent from a 17-field spec table |
| availability | retailer:rabe-bike / derived | In Stock; delivery 3-5 days |
info single-size-only — Only one size is in stock (M).info wheel-material-unknown — Wheel material could not be established.info mixed-groupset — Not a uniform groupset: {"shifters":"SLX","rearDerailleur":"XT","cassette":"Deore"}. Ranked on the shifting level, with a penalty.{
"frameScore": 11,
"drivetrainScore": 19,
"wheelScore": 5,
"extrasScore": 3,
"suspensionScore": 7,
"weightAdjustment": 0,
"equipmentValue": 45,
"notes": [
"Shimano SLX = 20.",
"Mixed groupset -1: cassette is Deore, 12 tier below SLX.",
"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 \"hydraulic-disc\" = 0, the baseline for mtb-hardtail.",
"Weight not published: no weight adjustment either way.",
"Fork \"mid\" +7 (160 mm travel, which is not scored).",
"Brake series \"basic\" +0.",
"Dropper post +3."
],
"marketPrice": 1361,
"valueScore": 0.345,
"savingsVsMarket": -2588
}
{
"requested": [
"wheelMaterial",
"wheelTier",
"weightKg"
],
"applied": [],
"rejected": [],
"notes": "Wheel material and tier not specified for the Bontrager Line Comp 30 wheelset in the source. Electronic shifting is not mentioned explicitly (shifters listed are Shimano SLX M7100). The source gives \"Systemgewicht: 136 kg\" but does not explicitly state a complete-bike weight, so bike weight was not set.",
"raw": {
"frameMaterial": {
"value": "aluminium",
"evidence": "Rahmen: Alpha Platinum Aluminium",
"confidence": 0.9
},
"groupsetBrand": {
"value": "Shimano",
"evidence": "Schaltwerk: Shimano XT M8100, langer Käfig",
"confidence": 0.9
},
"groupsetFamily": {
"value": "XT",
"evidence": "Schaltwerk: Shimano XT M8100, langer Käfig",
"confidence": 0.9
},
"electronicShifting": {
"value": null,
"evidence": null,
"confidence": 0.5
},
"speeds": {
"value": "12",
"evidence": "Kassette: Shimano Deore M6100, 10-51 Z., 12fach",
"confidence": 0.9
},
"mixedGroupset": {
"value": "true",
"evidence": "Schaltwerk: Shimano XT M8100, langer Käfig\nSchalthebel: Shimano SLX M7100, 12fach\nKurbel: e*thirteen e*spec Plus, 160 mm Kurbelarmlänge",
"confidence": 0.8
},
"wheelMaterial": {
"value": null,
"evidence": null,
"confidence": 0.5
},
"wheelTier": {
"value": null,
"evidence": null,
"confidence": 0.5
},
"brakes": {
"value": "hydraulic-disc",
"evidence": "Bremsen: SRAM DB 8 4-Kolben hydraulic disc",
"confidence": 0.9
},
"weightKg": {
"value": null,
"evidence": "Systemgewicht: 136 kg",
"confidence": 0.5
},
"powerMeter": {
"value": null,
"evidence": null,
"confidence": 0.5
},
"notes": "Wheel material and tier not specified for the Bontrager Line Comp 30 wheelset in the source. Electronic shifting is not mentioned explicitly (shifters listed are Shimano SLX M7100). The source gives \"Systemgewicht: 136 kg\" but does not explicitly state a complete-bike weight, so bike weight was not set."
}
}
{
"id": "rabe-bike:74551",
"retailer": "rabe-bike",
"retailerProductId": "74551",
"productUrl": "https://www.rabe-bike.de/en/trek-rail-8-gen-5-powersurge-2025",
"brand": "Trek",
"model": "Rail+ 8 Gen 5 Powersurge -",
"modelYear": 2026,
"category": "mtb",
"categoryBasis": "route",
"sourceCategory": "mtb",
"price": 3949,
"originalPrice": 5499,
"currency": "EUR",
"discountPercent": 28,
"frameMaterial": "aluminium",
"frameModel": "Alpha Platinum Aluminium, Removable Integrated Battery (RIB 2.0), konisches Steuerrohr, interne Control Freak Zugführung, Motor Armor, Boost148, 12-mm-Steckachs",
"frameTier": null,
"groupsetBrand": "Shimano",
"groupsetFamily": "SLX",
"groupsetGeneration": null,
"electronicShifting": false,
"speeds": 12,
"mixedGroupset": true,
"groupsetComponents": {
"shifters": "SLX",
"rearDerailleur": "XT",
"cassette": "Deore"
},
"groupsetTierSpread": 12,
"crank": "e*thirteen e*spec Plus, 160 mm Kurbelarmlänge",
"cassette": "Shimano Deore M6100, 10-51 Z., 12fach",
"brakes": "hydraulic-disc",
"brakePistons": 4,
"brakeTier": "basic",
"suspension": "front",
"fork": {
"make": "RockShox",
"line": "ZEB",
"tier": "mid",
"travelMm": 160
},
"rearShock": null,
"dropperPost": true,
"beltDrive": null,
"hubDynamo": null,
"rack": null,
"mudguards": null,
"chaincase": null,
"kickstand": null,
"lighting": null,
"wheelSize": null,
"wheelset": "Bontrager Line Comp 30, Tubeless Ready, 6-Loch-Scheibenaufnahme, Boost110, 15 mm Steckachse, 29\" / Bontrager Line Comp 30, Tubeless Ready, R",
"wheelMaterial": "unknown",
"wheelTier": "unknown",
"tyres": null,
"weightKg": null,
"powerMeter": false,
"powerMeterKind": null,
"availableSizes": [
{
"rawSize": "M",
"size": "M",
"sizeCm": null,
"inStock": true,
"stockCount": 1,
"price": 3949
},
{
"rawSize": "L",
"size": "L",
"sizeCm": null,
"inStock": false,
"stockCount": 0,
"price": null
},
{
"rawSize": "XL",
"size": "XL",
"sizeCm": null,
"inStock": false,
"stockCount": 0,
"price": null
}
],
"seller": null,
"availability": "limited",
"gtins": [],
"imageUrl": "https://www.rabe-bike.de/img/450/300/resize/catalog/product/t/r/trek-rail-plus-8-gen-5-power-surge-2025-1_4.jpg",
"rawTitle": "Trek Rail+ 8 Gen 5 Powersurge 2025-2026",
"fetchedAt": "2026-09-19T06:22:48.450Z",
"normalizationConfidence": 0.83,
"warnings": [
{
"code": "single-size-only",
"message": "Only one size is in stock (M).",
"severity": "info"
},
{
"code": "wheel-material-unknown",
"message": "Wheel material could not be established.",
"severity": "info"
},
{
"code": "mixed-groupset",
"message": "Not a uniform groupset: {\"shifters\":\"SLX\",\"rearDerailleur\":\"XT\",\"cassette\":\"Deore\"}. Ranked on the shifting level, with a penalty.",
"severity": "info"
}
]
}
{
"Rahmen": "Alpha Platinum Aluminium, Removable Integrated Battery (RIB 2.0), konisches Steuerrohr, interne Control Freak Zugführung, Motor Armor, Boost148, 12-mm-Steckachse, 160 mm Federweg",
"Gabel": "RockShox ZEB Select, DebonAir Feder, Charger RC Dämpfer, konischer Gabelschaft, 44 mm Vorbiegung, Boost110, Maxle Stealth Achse, 160 mm Federweg",
"Schaltwerk": "Shimano XT M8100, langer Käfig",
"Schalthebel": "Shimano SLX M7100, 12fach",
"Kurbel": "e*thirteen e*spec Plus, 160 mm Kurbelarmlänge",
"Kassette": "Shimano Deore M6100, 10-51 Z., 12fach",
"Kette": "Shimano SLX M7100, 12fach",
"Bremsen": "SRAM DB 8 4-Kolben hydraulic disc, SRAM CenterLine, 6-Loch-Scheibenaufnahme, abgerundete Kante, 200 mm",
"Laufradsatz": "Bontrager Line Comp 30, Tubeless Ready, 6-Loch-Scheibenaufnahme, Boost110, 15 mm Steckachse, 29\" / Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-Loch-Scheibenaufnahme, Boost148, 12 mm Steckachse, 27.5\"",
"Sattel": "Bontrager Verse P3, Stahlstreben",
"Sattelstütze": "Bontrager Line Dropper, interne Zugführung, 34,9 mm, 515 mm Länge, Hub: 170mm (M) / 200mm (L, XL)",
"Lenker": "Bontrager Line, Aluminium, 35 mm, 27,5 mm Rise, 780 mm Breite",
"Vorbau": "Bontrager Elite, 35 mm, 0 Grad, 45 mm Länge",
"Griffe": "Bontrager XR Trail Comp, Nylonklemme",
"Systemgewicht": "136 kg",
"Rahmenmaterial": "Alu",
"Bremsenhersteller": "SRAM"
}
{
"retailer": "rabe-bike",
"retailerProductId": "74551",
"productUrl": "https://www.rabe-bike.de/en/trek-rail-8-gen-5-powersurge-2025",
"extractionMethod": "server-html",
"sourceCategory": "mtb",
"rawTitle": "Trek Rail+ 8 Gen 5 Powersurge 2025-2026",
"rawBrand": "Trek",
"price": 3949,
"originalPrice": 5499,
"currency": "EUR",
"imageUrl": "https://www.rabe-bike.de/img/450/300/resize/catalog/product/t/r/trek-rail-plus-8-gen-5-power-surge-2025-1_4.jpg",
"rawSpecifications": {
"Rahmen": "Alpha Platinum Aluminium, Removable Integrated Battery (RIB 2.0), konisches Steuerrohr, interne Control Freak Zugführung, Motor Armor, Boost148, 12-mm-Steckachse, 160 mm Federweg",
"Gabel": "RockShox ZEB Select, DebonAir Feder, Charger RC Dämpfer, konischer Gabelschaft, 44 mm Vorbiegung, Boost110, Maxle Stealth Achse, 160 mm Federweg",
"Schaltwerk": "Shimano XT M8100, langer Käfig",
"Schalthebel": "Shimano SLX M7100, 12fach",
"Kurbel": "e*thirteen e*spec Plus, 160 mm Kurbelarmlänge",
"Kassette": "Shimano Deore M6100, 10-51 Z., 12fach",
"Kette": "Shimano SLX M7100, 12fach",
"Bremsen": "SRAM DB 8 4-Kolben hydraulic disc, SRAM CenterLine, 6-Loch-Scheibenaufnahme, abgerundete Kante, 200 mm",
"Laufradsatz": "Bontrager Line Comp 30, Tubeless Ready, 6-Loch-Scheibenaufnahme, Boost110, 15 mm Steckachse, 29\" / Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-Loch-Scheibenaufnahme, Boost148, 12 mm Steckachse, 27.5\"",
"Sattel": "Bontrager Verse P3, Stahlstreben",
"Sattelstütze": "Bontrager Line Dropper, interne Zugführung, 34,9 mm, 515 mm Länge, Hub: 170mm (M) / 200mm (L, XL)",
"Lenker": "Bontrager Line, Aluminium, 35 mm, 27,5 mm Rise, 780 mm Breite",
"Vorbau": "Bontrager Elite, 35 mm, 0 Grad, 45 mm Länge",
"Griffe": "Bontrager XR Trail Comp, Nylonklemme",
"Systemgewicht": "136 kg",
"Rahmenmaterial": "Alu",
"Bremsenhersteller": "SRAM"
},
"rawFeatures": [
"The Trek Rail+ 8 Gen 5 is an electric aluminium enduro bike for big adventures. The Bosch Performance CX motor provides powerful support, while the large battery enables long tours. With 160 mm suspension travel on the fork, 160 mm on the shock and adjustable geometry, it masters any terrain effortlessly."
],
"rawSizes": [
{
"rawSize": "M",
"size": "M",
"sizeCm": null,
"inStock": true,
"stockCount": 1,
"price": 3949
},
{
"rawSize": "L",
"size": "L",
"sizeCm": null,
"inStock": false,
"stockCount": 0,
"price": null
},
{
"rawSize": "XL",
"size": "XL",
"sizeCm": null,
"inStock": false,
"stockCount": 0,
"price": null
}
],
"availabilityText": "In Stock; delivery 3-5 days",
"fetchedAt": "2026-09-19T06:22:48.450Z",
"sourceMeta": {
"sku": "74551",
"listingPath": "/en/mountain-bike/enduro-mtb",
"soldOut": 1,
"netFinalPrice": 3318.4873949579833,
"inStockSizesOnListing": [
"M"
],
"childCount": 3
}
}