They're the extra steering uprights the TRF420 competition car framework. They feature the brand new 2-part front upright designs which use split arm and bearing housing elements. You are able to utilize these new uprights on existing Tamiya touring automobile racing platforms.
• TRF420 C Parts x1
• Components are molded in carbon fiber-reinforced synthetic for superior rigidity.
• Compatible with TRF420, TRF419, TA07 and TB-05 PRO framework cars.