Library › Car design › Suspension geometry ·

Anti-squat

Name: Anti-squat dimension sheet
Creator: Xem Studio
License: https://creativecommons.org/licenses/by/4.0/

What is anti-squat and how much should an RC buggy run? · Standard part · basis: Design rules and figures from the cited sources; example geometry by Xem Studio

Also called: anti squat, rc anti squat, anti squat degrees, rear hinge pin angle, anti squat percentage, squat under acceleration, instant centre anti squat, 4 link anti squat, rear pivot block

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

sizes: 3 in table

Notes

Anti-squat controls how much the rear compresses under acceleration. On RC cars it is the angle of the rear inner hinge pins, front higher than rear (CompetitionX); on full-size cars it is set by the side-view instant centre relative to the CG height (Formula1-Dictionary).
More anti-squat gives more forward drive on high grip and less on-power steering; less lets the rear squat for grip on loose or bumpy tracks (CompetitionX; Tekno).
Most 1/10 off-road cars start around 2-3 deg (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.). Sizes the sources do not fix are illustrative; scale the example to your own vehicle.

Anti-squat size chart

parameter	value or range	source
1/10 off-road starting point	2-3 deg	CompetitionX
Insert labels	0 (flat), 2, 3, 4 deg	CompetitionX
Percentage method (anti-dive example)	50% = force line crosses halfway to CG height	Formula1-Dictionary

Where the files are

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

CompetitionX	RC Anti-Squat Explained	web	Publisher's page; dimensions are facts
Tekno RC	Tekno RC Setup Guide	web	Publisher's page; dimensions are facts
Formula1-Dictionary	Anti-Dive and Anti-Squat Suspension Geometry	web	Publisher'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

anti-squat-geometry

Anti-squat demo: rear arm line rising 2.5° to the instant centre (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=anti-squat