some various other fork and rear shock parts.. The WP 40nm-215 Shock Spring is a high-quality replacement part designed specifically for KTM motorcycles, such as the 2023 KTM SXF and Husqvarna 85 cc models in the trials and motocross categories. With a focus on durability and performance, this shock spring ensures a smooth and efficient suspension system for your off-road adventures. Made by the reputable manufacturer WP, this product is a reliable choice for motocross and trials enthusiasts looking to maintain the optimal performance of their bikes.