






🛵 Ride Bold, Ride Protected – Synthetic Power for Your Big-Twin Beast!
Red Line 42504 20W50 Synthetic Motorcycle Oil is engineered for modern Big-Twin engines, blending advanced PAO and Ester base stocks with 2200 ppm ZDDP for exceptional wear protection and friction control. Compatible with wet-clutch systems and meeting JASO MA/MA2 standards, this quart-sized oil ensures your motorcycle runs smoother, longer, and stronger—backed by Red Line’s trusted performance legacy since 1979.






| Viscosity | 20W-50 |
| Brand | Red Line |
| Vehicle Service Type | ATV, Sport Motorcycle |
| UPC | 083522425049 |
| Automotive Fit Type | Universal Fit |
| Global Trade Identification Number | 00083522425049 |
| Manufacturer | Red Line |
| Size | Quart |
| SAE J300 Viscosity Grade | 20W-50 |
| Model | 42504 |
| Item Weight | 1.26 pounds |
| Product Dimensions | 4.5 x 3.5 x 9 inches |
| Item model number | RED42504 |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | 42504 |
| OEM Part Number | 42504 |
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