Yokomo Brass Suspension Mount EYokomo (#Y2 301EBA) Brass Suspension Mount D Feature: For: All Yokomo YD 2 series A brass suspension mount that is ideal for the rear suspension of the YD 2 series. Yokomo has a lineup of D and E sizes, which are the same as on the SXIII Increase rear traction by making it 10g or more heavier than aluminum. It is effective especially when accelerating at the corner exit, and because the center of gravity can be set low, it is easier to move from