The Rear Suspension Mount for YD-2 Series. Made From Brass Material, Increasing Weight and Rear Load. It Improves Acceleration Traction Without Compromising Handling Performance Due To Lower Center of Gravity, Allowing Quick Acceleration Especially at Corner Exits. Primarily Used for Rear Front Side, It Is Size D and The Suspension Pin Distance Can Be Set Between 57.2mm to 60.4mm. It Weighs 15.4g, Approximately 10.6g Heavier Than Aluminum.