These are adjustable upper arms that can be used on any variant of the TT-02 chassis. The parts allow you to add or decrease wheel camber. Adding camber for racing purposes allows the car to alter its traction characteristics under turning and cornering. 

• Glass fiber-reinforced Upper Arms x2 
• Stainless steel Turnbuckle Shafts x2 
• Low-Friction Suspension Balls x2 
• Arms are assembly type, and allow adjustment of camber in a range of 0 to 2 degrees. 
• Compatible with TT-02, TT-02R, TT-02RR and TT-02D chassis cars. 
• Cannot be used with Item 54639. If using with Item 53792, use Item 42236 for adjustment