RRP RX4 Rear Delrin Bulkhead (Left) - RRP-017 Fits: RRP RX4 (Yokomo MX4 Worlds Prototype)Material: Delrin. Strong and durable material worthy of use on race, and shelf queen builds. RRP RX4 Rear Delrin Bulkhead (Left) RRP-017SKU: RRP-017$25.00PriceQuantity*Add to Cart