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Front toe (toe-in / toe-out)

Should the front wheels be toed in or toed out? · Standard part · basis: Design rules and figures from the cited sources; example geometry by Xem Studio

Also called: toe in, toe out, front toe, rc toe setting, toe angle, toe in vs toe out, front toe out turn in, wheel alignment toe, toe degrees rc, tracking alignment

Exact dimensions. True size, with no printing tolerance added.

sizes
3 in table

Notes

  • Toe is the angle of each wheel to the car's centreline; toe-in points the front of the wheel inward (Wikipedia).
  • Front toe-in gives straight-line stability and an easier car but slower turn-in; toe-out gives more corner-entry steering but less stability under acceleration (Tekno; Wikipedia).
  • Extra toe-in slightly increases tyre wear because the tyres run with a small slip angle when straight (Wikipedia).
  • The file is a reference example built by Xem Studio from the numbers above (Reference 1/10 touring car: wheelbase 260 mm (AARCMCC ISTC 250-270), track 190 mm (EFRA width without body), 50 mm = EFRA rim limit.). Sizes the sources do not fix are illustrative; scale the example to your own vehicle.

Front toe size chart

parametervalue or rangesource
RC front toe-in0-1 deg (stability, slower turn-in)EuroRC set-up guide
RC front toe-out0-2 deg (quicker steering)EuroRC set-up guide
Straight-line settingfront toe closer to 0 degCompetitionX quick guide

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

WikipediaToe (automotive)webPublisher's page; dimensions are facts
Tekno RCTekno RC Setup GuidewebPublisher's page; dimensions are facts
EuroRCShort set-up guidewebPublisher's page; dimensions are facts
CompetitionXRC Quick Setup GuidewebPublisher's page; dimensions are facts

Free files

★ Free files 1 parts. Xem Studio design: free to use, print and sell things from; not to be republished as files. Xem Studio Design License. index.json

toe-front-geometryToe demo: front wheels toed 1° (illustrative layout)STEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=toe-front

Front toe (toe-in / toe-out), isometric render of a generated part
Render of toe-front-geometry from the free STEP; not to scale.

Fits with

Questions

Why do race cars use toe-out?

Zero or slight toe-out sharpens steering response (Wikipedia).