RC buggy / off-road rear wing — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/rc-buggy-wing/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)
Basis: Design rules and figures from the cited sources; example geometry by Xem Studio
Catalog version: 2026-10-20

Sizes: see table below
- 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.

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

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- EFRA: EFRA Handbook 2010, Appendix 3: Electric Cars — web — Publisher's page; dimensions are facts — https://www.efra.ws/wp-content/uploads/2010/03/Handb10App3.pdf
- LiveRC: Revolution Design 7in ultra high downforce wing — web — Publisher's page; dimensions are facts — https://www.liverc.com/news/new-revolution-design-7-ultra-high-downforce-wing/
- CompetitionX: RC Wings Explained — web — Publisher's page; dimensions are facts — https://www.competitionx.com/?p=489

Free files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/rc-buggy-wing/index.json
API: https://xemstudio.com/api/geometry?object=rc-buggy-wing