# Front kick-up (RC)

> What is kick-up on an RC car and what angle should I run?

- 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/kick-up/ · JSON: https://xemstudio.com/api/geometry?object=kick-up · Plain text: https://xemstudio.com/objects/kick-up/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

- Kick-up is the side-view angle of the front inner hinge pins, pointing up toward the front (CompetitionX). It adds to caster and lets the front wheels roll over bumps.
- More kick-up improves bump absorption and high-speed stability and gives smoother braking; less sharpens initial steering and front bite but feels nervous on rough tracks (CompetitionX; Adrenaline RC).
- Most off-road buggies start around 25-30 deg and adjust in 2-5 deg steps (CompetitionX).
- Used on: 1/10 off-road buggies.
- 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. kick-up modelled on the caster builder.). Sizes the sources do not fix are illustrative; scale the example to your own vehicle.

## Sizes

| parameter | value or range | source |
|---|---|---|
| Typical buggy kick-up | 25-30 deg | CompetitionX |
| Example values | 20, 25, 30 deg | CompetitionX |
| Adjustment step | about 2-5 deg | CompetitionX |
| Kick-up in caster stack-up example | 11 deg | Tekno setup guide |

## Where the files are

- CompetitionX: [RC Kickup Explained](https://www.competitionx.com/?p=363) — web — Publisher's page; dimensions are facts
- Adrenaline RC Racing: [Mastering Caster & Kick-Up for Better Offroad RC Racing Performance](https://www.adrenalinercracing.com/blogs/news/mastering-caster-kick-up-for-better-offroad-rc-racing-performance) — 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

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

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

- kick-up-geometry: [STEP](https://xemstudio.com/files/hardware/kick-up/kick-up-geometry.step) · [STL](https://xemstudio.com/files/hardware/kick-up/kick-up-geometry.stl) — Caster demo: steering axis tilted back 25°, wheelbase 260 mm, Ø90 tyres (illustrative layout)

## Questions

**Is kick-up the same as caster?**

No, but they are linked: raising the front block or lowering the rear increases kick-up and often caster (Adrenaline RC).

## Fits with

- [Camber angle](https://xemstudio.com/objects/camber/)
- [Caster angle](https://xemstudio.com/objects/caster/)
- [Front toe (toe-in / toe-out)](https://xemstudio.com/objects/toe-front/)
- [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/)