{
  "asOf": "2026-10-15",
  "source": {
    "name": "Rider Triangle",
    "note": "Computed locally with the published rider-triangle geometry model; not a motorcycle specification database."
  },
  "license": {
    "name": "Creative Commons Attribution 4.0 International",
    "shortName": "CC BY 4.0",
    "url": "https://creativecommons.org/licenses/by/4.0/",
    "attribution": "Rider Triangle",
    "scope": "Original modeled results in this dataset only; third-party source material is excluded."
  },
  "seatHeightChart": {
    "slug": "motorcycle-seat-height-inseam-chart",
    "unit": "mm",
    "note": "Each value is inseam minus seat height.",
    "seatsMm": [
      680,
      720,
      760,
      800,
      840,
      880,
      920
    ],
    "rows": [
      {
        "inseamIn": 26,
        "inseamMm": 660,
        "inseamMinusSeatMm": [
          -20,
          -60,
          -100,
          -140,
          -180,
          -220,
          -260
        ]
      },
      {
        "inseamIn": 27,
        "inseamMm": 686,
        "inseamMinusSeatMm": [
          6,
          -34,
          -74,
          -114,
          -154,
          -194,
          -234
        ]
      },
      {
        "inseamIn": 28,
        "inseamMm": 711,
        "inseamMinusSeatMm": [
          31,
          -9,
          -49,
          -89,
          -129,
          -169,
          -209
        ]
      },
      {
        "inseamIn": 29,
        "inseamMm": 737,
        "inseamMinusSeatMm": [
          57,
          17,
          -23,
          -63,
          -103,
          -143,
          -183
        ]
      },
      {
        "inseamIn": 30,
        "inseamMm": 762,
        "inseamMinusSeatMm": [
          82,
          42,
          2,
          -38,
          -78,
          -118,
          -158
        ]
      },
      {
        "inseamIn": 31,
        "inseamMm": 787,
        "inseamMinusSeatMm": [
          107,
          67,
          27,
          -13,
          -53,
          -93,
          -133
        ]
      },
      {
        "inseamIn": 32,
        "inseamMm": 813,
        "inseamMinusSeatMm": [
          133,
          93,
          53,
          13,
          -27,
          -67,
          -107
        ]
      },
      {
        "inseamIn": 33,
        "inseamMm": 838,
        "inseamMinusSeatMm": [
          158,
          118,
          78,
          38,
          -2,
          -42,
          -82
        ]
      },
      {
        "inseamIn": 34,
        "inseamMm": 864,
        "inseamMinusSeatMm": [
          184,
          144,
          104,
          64,
          24,
          -16,
          -56
        ]
      },
      {
        "inseamIn": 35,
        "inseamMm": 889,
        "inseamMinusSeatMm": [
          209,
          169,
          129,
          89,
          49,
          9,
          -31
        ]
      },
      {
        "inseamIn": 36,
        "inseamMm": 914,
        "inseamMinusSeatMm": [
          234,
          194,
          154,
          114,
          74,
          34,
          -6
        ]
      },
      {
        "inseamIn": 37,
        "inseamMm": 940,
        "inseamMinusSeatMm": [
          260,
          220,
          180,
          140,
          100,
          60,
          20
        ]
      },
      {
        "inseamIn": 38,
        "inseamMm": 965,
        "inseamMinusSeatMm": [
          285,
          245,
          205,
          165,
          125,
          85,
          45
        ]
      }
    ]
  }
}