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Free standard shipping on orders over $149
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Elevate your Harley-Davidson Sportster with Maxima Sportster Gear & Chain Case Oil, 32oz (Part #40-03901), from Factory SuperBike. Formulated for 1971 and newer Harley-Davidson XR and XL Sportster transmissions and primary chain cases, this high-performance gear oil ensures smooth shifting, optimal clutch engagement, and superior wear protection.
Engineered for high-performance Harley-Davidson V-Twin Sportster motorcycles, this gear oil delivers reliable performance and durability. Made in the U.S.A. Explore more Maxima Racing Oils at Factory SuperBike.
Note: Not for sale in California or New York (Prop 65).
Keep your Sportster running strong. Limited stock—text DEALS to 503-832-7473 to secure yours today!
© Factory SuperBike 2025
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