Yok Y2-415RW, Rear Hub Carrier Weight
A steel weight that attaches directly to the YD-2 series rear hub carrier to increase 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 (Y2-415R / Y2-415AR) to which calipers can be attached.