Here are a set of our famous dual rate shock springs for the Losi LST Monster Truck. The dual rate are 8.9 ppi at the top and 15 ppi at the bottom; this provides both a smooth ride at low speeds and stable ride at high speeds. These increase the performance and looks of your LST without having to purchase those expensive shocks costing $100 or more. They are zinc coated in silver for a durable lasting beautiful finish. Our springs can be used with or without the pre-load spacers depending on your preferred ride height. This is a complete set of 4 springs.