Library › Car design › Car aero ·

RC buggy / off-road rear wing

Why are RC buggy wings so big and flat with tall side dams? · Standard part · basis: Design rules and figures from the cited sources; example geometry by Xem Studio

Also called: rc buggy wing, 1/10 buggy wing, rc off road wing, short course wing, buggy wing side dams, rc wing angle, high downforce buggy wing, 7 inch buggy wing, rc truck wing, 1/8 buggy wing, rc wing gurney lip

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

sizes
4 in table

Notes

  • Off-road RC wings are large, thin polycarbonate plates with tall side dams. EFRA lets a 1/10 off-road wing be 220 mm wide with its profile inside an 80 x 80 mm box, and any side dam inside 80 x 80 mm.
  • The wing adds rear traction, high-speed stability and control in the air; more rear wing gives a nose-up attitude on jumps (CompetitionX). Tall side dams are sold specifically to add side bite and centre dividers for straight-line stability (LiveRC).
  • Short-course trucks are covered by their own class rules; the fetched sources do not give their wing dimensions.
  • Used on: 1/10 2WD and 4WD off-road buggies.
  • The file is a reference example built by Xem Studio from the numbers above (EFRA 1/10 off-road maximum box; aoa illustrative.). Sizes the sources do not fix are illustrative; scale the example to your own vehicle.

RC buggy / off-road rear wing size chart

parametervalue or rangesource
1/10 off-road wingmax 220 mm wide; profile in 80 x 80 mm rectangleEFRA
Side damfit 80 x 80 mm rectangleEFRA
1/10 off-road overall widthmax 250 mmEFRA
Example aftermarket wing width7 in (178 mm)LiveRC

Where the files are

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

EFRAEFRA Handbook 2010, Appendix 3: Electric CarswebPublisher's page; dimensions are facts
LiveRCRevolution Design 7in ultra high downforce wingwebPublisher's page; dimensions are facts
CompetitionXRC Wings ExplainedwebPublisher'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

rc-buggy-wing-rear-wingsingle rear wing: span 220 × chord 80 mm at 6°, endplates 80 mm, inverted NACA 4412 section (mounts from below)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=rc-buggy-wing

RC buggy / off-road rear wing, isometric render of a generated part
Render of rc-buggy-wing-rear-wing from the free STEP; not to scale.

Fits with

Questions

Why does more wing change jumps?

Rear downforce and drag pitch the car nose-up in the air (CompetitionX).