




🏍️ Ride Smooth, Ride Confident: The Ultimate Harley Chaincase Oil
Spectro R.HDPCO Heavy Duty Primary Chaincase Oil is a premium SAE 85 viscosity oil engineered with special polymers to deliver superior clutch engagement and temperature stability. Specifically formulated for Harley Sportster and Big Twin motorcycles, it eliminates clutch drag and slipping while exceeding all OEM and Harley warranty requirements, ensuring reliable, high-performance protection under heavy loads.
| Manufacturer | Spectro |
| Brand | Spectro Oil |
| Model | R.HDPCO |
| Product Dimensions | 10.16 x 6.35 x 22.73 cm; 898 g |
| Item model number | R.HDPCO |
| Manufacturer part number | R.HDPCO |
| Item Weight | 898 g |
| Viscosity | SAE 85 |
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