RC on-road touring car wing — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/rc-touring-car-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
- 1/10 touring-car wings are rule-limited airfoil plates on the body's tail. AARCMCC ISTC rules cap width at 125-190 mm and chord at 20-40 mm including flaps, require the wing to stay below the roofline and allow 40 x 20 mm side dams; EFRA caps width at 190 mm and fits the profile in a 25 x 40 mm box.
- Because the box is fixed, designers reshape mounts to use the full allowance: one aftermarket wing drops its mounting pocket 6 mm so the full 20 mm height stays under the roofline (LiveRC).
- The wing adds rear traction and high-speed stability; too much makes the car safe but reluctant to rotate (CompetitionX).
- Used on: 1/10 ISTC electric touring cars.
- The file is a reference example built by Xem Studio from the numbers above (Max EFRA/AARCMCC touring box; aoa illustrative.). Sizes the sources do not fix are illustrative; scale the example to your own vehicle.

parameter  value or range  source
ISTC wing width (incl. endplates)  125-190 mm  AARCMCC
ISTC wing chord (incl. flaps)  20-40 mm  AARCMCC
ISTC endplate / side dam  40 x 20 mm  AARCMCC
EFRA touring wing  max 190 mm wide; profile in 25 x 40 mm rectangle  EFRA
Wing height rule  below roofline  AARCMCC
Aftermarket wing height  20 mm (legal limit)  LiveRC
1/10 track (GT) wing  250 mm wide, 55 mm chord  AARCMCC

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- AARCMCC: Section 3: Electric On Road, Technical Rules (Oct 2006) — web — Publisher's page; dimensions are facts — https://www.rctech.net/forum/attachments/australian-racing/180184d1162811203-aarcmcc-online-tech-road-oct-06.pdf
- 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: Leadfinger Racing MaxSpec-20 Vortex TC wing — web — Publisher's page; dimensions are facts — https://www.liverc.com/news/new-leadfinger-racing-maxspec-20-vortex-tc-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-touring-car-wing/index.json
API: https://xemstudio.com/api/geometry?object=rc-touring-car-wing