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Front kick-up (RC)

What is kick-up on an RC car and what angle should I run? · Standard part · basis: Design rules and figures from the cited sources; example geometry by Xem Studio

Also called: kick up, kickup, rc kickup angle, front kick up, kick-up vs caster, 25 degree kickup, bulkhead angle, front hinge pin angle, chassis kick up, kickup bushing

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

sizes
4 in table

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.

Front kick-up size chart

parametervalue or rangesource
Typical buggy kick-up25-30 degCompetitionX
Example values20, 25, 30 degCompetitionX
Adjustment stepabout 2-5 degCompetitionX
Kick-up in caster stack-up example11 degTekno setup guide

Where the files are

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

CompetitionXRC Kickup ExplainedwebPublisher's page; dimensions are facts
Adrenaline RC RacingMastering Caster & Kick-Up for Better Offroad RC Racing PerformancewebPublisher's page; dimensions are facts
Tekno RCTekno RC 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

kick-up-geometryCaster demo: steering axis tilted back 25°, wheelbase 260 mm, Ø90 tyres (illustrative layout)STEP · STL
Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.
Set it up →

Plain text: sheet.txt · JSON: /api/geometry?object=kick-up

Front kick-up (RC), isometric render of a generated part
Render of kick-up-geometry from the free STEP; not to scale.

Fits with

Camber angle, isometric render of a generated part
Camber angle4 sizes★ 1 file
Caster angle, isometric render of a generated part
Caster angle5 sizes★ 1 file
Front toe (toe-in / toe-out), isometric render of a generated part
Front toe (toe-in / toe-out)3 sizes★ 1 file
Rear toe-in, isometric render of a generated part
Rear toe-in3 sizes★ 1 file
Ackermann steering geometry, isometric render of a generated part
Ackermann steering geometry4 sizes★ 1 file
Reverse (anti-) Ackermann, isometric render of a generated part
Reverse (anti-) Ackermann2 sizes★ 1 file

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).