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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
| parameter | value or range | source |
|---|---|---|
| 1/10 off-road wing | max 220 mm wide; profile in 80 x 80 mm rectangle | EFRA |
| Side dam | fit 80 x 80 mm rectangle | EFRA |
| 1/10 off-road overall width | max 250 mm | EFRA |
| Example aftermarket wing width | 7 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.
| EFRA | EFRA Handbook 2010, Appendix 3: Electric Cars | web | Publisher's page; dimensions are facts |
| LiveRC | Revolution Design 7in ultra high downforce wing | web | Publisher's page; dimensions are facts |
| CompetitionX | RC Wings Explained | 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
| rc-buggy-wing-rear-wing | single rear wing: span 220 × chord 80 mm at 6°, endplates 80 mm, inverted NACA 4412 section (mounts from below) | STEP · STL |
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.Plain text: sheet.txt · JSON: /api/geometry?object=rc-buggy-wing

Fits with
Questions
Why does more wing change jumps?
Rear downforce and drag pitch the car nose-up in the air (CompetitionX).





