A must have pulley if You want to lower Your counter steer ration to 1.85. As well - it is more practical then the stock one, as uses a screw, not a pin
Use this pulley to decrease the Counter steer ratio from 2.14 to 1.85 of Sakura D3. Also is necessary use with 3Racing Low Friction Rear Belt 177 (Bando) #SAK-X09. The original belt of D3 (the 183) will be loose.