{
 "version": "2026-10-20",
 "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.",
 "slug": "toe-rear",
 "name": "Rear toe-in",
 "kind": "standard",
 "category": "Car design",
 "group": "Suspension geometry",
 "year": null,
 "question": "Why do RC cars run rear toe-in?",
 "tags": [
  "vehicle design",
  "suspension geometry",
  "rc design",
  "aerodynamics"
 ],
 "aliases": [
  "rear toe in",
  "rear toe",
  "rc rear toe in",
  "rear hub toe",
  "toe in degrees rear",
  "rear toe out",
  "rear toe stability",
  "rear toe block",
  "3 degree rear toe",
  "rear alignment rc"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/toe-rear/",
 "sheet_txt": "https://xemstudio.com/objects/toe-rear/sheet.txt",
 "sheet": {
  "basis": "Design rules and figures from the cited sources; example geometry by Xem Studio",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Rear toe-in adds stability on power and under braking at a small cost in top speed (Tekno), and improves cornering stability on full-size cars (Wikipedia).",
   "EuroRC gives 1-4 deg rear toe-in for RC cars and says never to run rear toe-out because it causes snap oversteer.",
   "The file is a reference example built by Xem Studio from the numbers above (Reference 1/10 off-road: track 250 mm and 90 mm wheel+tyre (EFRA maxima); wheelbase illustrative.). Sizes the sources do not fix are illustrative; scale the example to your own vehicle."
  ],
  "table": {
   "columns": [
    "parameter",
    "value or range",
    "source"
   ],
   "rows": [
    [
     "RC rear toe-in",
     "1-4 deg",
     "EuroRC set-up guide"
    ],
    [
     "Rear toe-out",
     "avoid (snap oversteer)",
     "EuroRC set-up guide"
    ],
    [
     "Effect",
     "more on-power and braking stability, less top speed",
     "Tekno setup guide"
    ]
   ]
  }
 },
 "sheet_text": "Rear toe-in — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/toe-rear/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)\nBasis: Design rules and figures from the cited sources; example geometry by Xem Studio\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Rear toe-in adds stability on power and under braking at a small cost in top speed (Tekno), and improves cornering stability on full-size cars (Wikipedia).\n- EuroRC gives 1-4 deg rear toe-in for RC cars and says never to run rear toe-out because it causes snap oversteer.\n- The file is a reference example built by Xem Studio from the numbers above (Reference 1/10 off-road: track 250 mm and 90 mm wheel+tyre (EFRA maxima); wheelbase illustrative.). Sizes the sources do not fix are illustrative; scale the example to your own vehicle.\n\nparameter  value or range  source\nRC rear toe-in  1-4 deg  EuroRC set-up guide\nRear toe-out  avoid (snap oversteer)  EuroRC set-up guide\nEffect  more on-power and braking stability, less top speed  Tekno setup guide\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- EuroRC: Short set-up guide — web — Publisher's page; dimensions are facts — https://www.eurorc.com/page/135/short-set-up-guide\n- Tekno RC: Tekno RC Setup Guide — web — Publisher's page; dimensions are facts — https://teknoforums.com/misc/Tekno-RC-Setup-Guide.pdf\n- Wikipedia: Toe (automotive) — web — Publisher's page; dimensions are facts — https://en.wikipedia.org/wiki/Toe_(automotive)\n\nFree files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/toe-rear/index.json\nAPI: https://xemstudio.com/api/geometry?object=toe-rear\n",
 "sources": [
  {
   "publisher": "EuroRC",
   "title": "Short set-up guide",
   "url": "https://www.eurorc.com/page/135/short-set-up-guide",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Tekno RC",
   "title": "Tekno RC Setup Guide",
   "url": "https://teknoforums.com/misc/Tekno-RC-Setup-Guide.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Wikipedia",
   "title": "Toe (automotive)",
   "url": "https://en.wikipedia.org/wiki/Toe_(automotive)",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "camber",
  "caster",
  "kick-up",
  "toe-front",
  "ackermann",
  "anti-ackermann"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [],
 "faq": [
  {
   "q": "Is rear toe-out ever used?",
   "a": "EuroRC advises never, because of snap oversteer."
  }
 ],
 "files_license": {
  "name": "Xem Studio Design License",
  "holder": "Xem Studio",
  "url": "https://xemstudio.com/license/",
  "note": "Xem Studio's own design: free to use, print, modify and sell things made from it; not to be republished or redistributed as files."
 },
 "offers": [
  {
   "file": "toe-rear-geometry",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "Xem Studio Design License",
   "step": "https://xemstudio.com/files/hardware/toe-rear/toe-rear-geometry.step",
   "stl": "https://xemstudio.com/files/hardware/toe-rear/toe-rear-geometry.stl",
   "note": "Toe demo: front wheels toed 2.5° (illustrative layout)"
  }
 ],
 "markdown": "https://xemstudio.com/objects/toe-rear/index.md"
}