Yokomo High Traction Rear Hub Carrier WeightYokomo (#Y2 415RWA) High Traction Rear Hub Carrier Weight Feature: For: Yokomo YD 2 RD SD; Universal Parts A steel weight that attaches directly to the rear hub carrier of the YD 2 series to enhance rear traction. By increasing the unsprung weight, which directly applies the load to the tire, without using a damper, it is possible to effectively increase the rear grip It weighs about 7. 4g on each side and contains two. Compatible with hub carriers