Tamiya&rsquos TB-03, TB-04, TA-05 version II, TA-06, TRF416 and TRF417 chassis platforms all use the "short-reversible" suspension system developed by Tamiya for its mid-range and high end touring car platforms. This suspension system set up has proved to be robust in handling all the different driving and racing conditions these cars meet. The included front hub carrier in this set up has always given the user 4 degrees of caster. This new hub carrier is made of carbon reinforced plastic and sports 6 degrees of caster which will allow the car to achieve greater cornering performance and increased stability.