# Front toe (toe-in / toe-out)

> Should the front wheels be toed in or toed out?

- Category: Car design › Suspension geometry
- Kind: Standard part
- Basis: Design rules and figures from the cited sources; example geometry by Xem Studio
- Page: https://xemstudio.com/objects/toe-front/ · JSON: https://xemstudio.com/api/geometry?object=toe-front · Plain text: https://xemstudio.com/objects/toe-front/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files Xem Studio Design License (free to use and sell from, not to redistribute as files: https://xemstudio.com/license/)
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

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

## 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.

## Sizes

| parameter | value or range | source |
|---|---|---|
| RC front toe-in | 0-1 deg (stability, slower turn-in) | EuroRC set-up guide |
| RC front toe-out | 0-2 deg (quicker steering) | EuroRC set-up guide |
| Straight-line setting | front toe closer to 0 deg | CompetitionX quick guide |

## Where the files are

- Wikipedia: [Toe (automotive)](https://en.wikipedia.org/wiki/Toe_(automotive)) — web — Publisher's page; dimensions are facts
- Tekno RC: [Tekno RC Setup Guide](https://teknoforums.com/misc/Tekno-RC-Setup-Guide.pdf) — web — Publisher's page; dimensions are facts
- EuroRC: [Short set-up guide](https://www.eurorc.com/page/135/short-set-up-guide) — web — Publisher's page; dimensions are facts
- CompetitionX: [RC Quick Setup Guide](https://www.competitionx.com/?p=129) — web — Publisher's page; dimensions are facts

## Free STEP/STL (1 parts, Xem Studio Design License, Xem Studio)

Index: https://xemstudio.com/files/hardware/toe-front/index.json · license: https://xemstudio.com/files/hardware/toe-front/LICENSE.md

- toe-front-geometry: [STEP](https://xemstudio.com/files/hardware/toe-front/toe-front-geometry.step) · [STL](https://xemstudio.com/files/hardware/toe-front/toe-front-geometry.stl) — Toe demo: front wheels toed 1° (illustrative layout)

## Questions

**Why do race cars use toe-out?**

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

## Fits with

- [Camber angle](https://xemstudio.com/objects/camber/)
- [Caster angle](https://xemstudio.com/objects/caster/)
- [Front kick-up (RC)](https://xemstudio.com/objects/kick-up/)
- [Rear toe-in](https://xemstudio.com/objects/toe-rear/)
- [Ackermann steering geometry](https://xemstudio.com/objects/ackermann/)
- [Reverse (anti-) Ackermann](https://xemstudio.com/objects/anti-ackermann/)