Yamalube Ultramatic Grease is expertly formulated to meet the specific demands of ATV and side-by-side automatic clutches, particularly the primary sheave. This high-performance grease is tailored to protect and enhance the operation of your vehicle's clutch system under the most challenging conditions. Key Features: Specialized Formulation: Designed specifically for the unique requirements of ATV and side x side automatic clutches. It ensures optimal performance and longevity of the primary sheave components.