Primary Chaincase Lubricant

Bel-Ray Primary Chaincase Lubricant Bel-Ray Primary Chaincase Lubricant is a high-performance oil specially formulated for motorcycle primary chaincases and wet clutches. Designed for Big Twin and air-cooled or liquid-cooled applications, it delivers reliable protection and consistent clutch engagement. Optimized for primary chaincases: Advanced additives reduce wear and extend primary chain life. Wet clutch compatible: Prevents clutch slipping and chatter for smooth, predictable engagement. Leak detection: Distinctive red color enables quick visual checks and easier maintenance. Versatile fit: Ideal for Big Twin models and both air-cooled and liquid-cooled primary systems. Choose Bel-Ray Primary Chaincase Lubricant for superior wear protection, dependable clutch performance, and easy leak monitoring—engineered to keep your ride responsive and reliable.