Tamiya TT-02 chassis (bare chassis, First Try kit 57986) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/tamiya-tt-02-chassis/  (sheet CC BY 4.0)
Basis: Manufacturer specifications (Tamiya)
Catalog version: 2026-10-20

Overall (mm): length 376, width 182
- The TT-02 is Tamiya's shaft-driven 4WD bathtub chassis used under most 1/10 touring car kits. The file is a 376 × 182 mm footprint with wheel centres on a 257 mm wheelbase.
- Height, tread and body-post spacing are not published.
- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.

dimension  value
Chassis length  376 mm
Width  182 mm
Wheelbase  257 mm
Tire width / diameter  26 / 67 mm (front & rear)
TT-02R chassis kit (47326)  376 × 182 mm, 257 mm wheelbase, 24 / 64 mm tires
TT-02 Type-S (58600)  385 × 187 mm, 257 mm wheelbase, 24 / 64 mm tires
Motor  Type 540

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Tamiya: First Try R/C Kit (TT-02) 57986 — web — Publisher's page; dimensions are facts — https://www.tamiya.com/english/products/57986/index.html
- Tamiya: TT-02R Chassis Kit 47326 — web — Publisher's page; dimensions are facts — https://tamiya.com/english/products/47326/index.html
- Tamiya: TT-02 Type-S Chassis Kit 58600 — web — Publisher's page; dimensions are facts — https://tamiya.com/english/products/58600/index.html

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/tamiya-tt-02-chassis/index.json
API: https://xemstudio.com/api/geometry?object=tamiya-tt-02-chassis