These are the spare steering uprights for the TRF420 race car chassis. They feature the new 2-part front upright designs which utilize separate arm and bearing housing components. You can also use these uprights on existing Tamiya touring car racing platforms. - TRF420 C Parts x1 - Components are molded in carbon fiber-reinforced plastic for superior rigidity. - Compatible with TRF420, TRF419, TA07 and TB-05 PRO chassis cars.