Customer Service (503) 832-7336
The Only Place For People Who Ride


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Free standard shipping on orders over $149
We ship to the lower 48 United States. Orders over $149 ship free; a flat rate applies under $149. Estimated delivery dates are shown at checkout based on item availability and the shipping option you choose.
We text or call to confirm sizing & fitment before we ship.
Every Factory SuperBike order includes a free expert check from real riders. Before we ship helmets and gear, we text or call to confirm your size and fit; for parts, we verify fitment to your bike. This is why we don't have to guess and you don't have to gamble.
Helmet & gear orders: reply to our text to confirm and your order ships, typically same day. No reply within 48 hours and we'll call you. Questions now? Call or text (503) 832-7336.
Trusted by professionals and everyday riders alike, RK Chains are the benchmark of strength, precision, and reliability in motorcycle drive systems. Manufactured with advanced Japanese technology, each chain is engineered to deliver smooth power transfer, long-lasting performance, and exceptional resistance to wear—even under the most demanding conditions. From high-speed racing to daily commuting, RK Chains ensure consistent performance and durability you can count on, keeping you moving forward—stronger and longer.
* 520 Aluminum Race kit features RK’s premium, lightweight XW-ring sealed racing chain with a gold finish
* Kit includes a premium Driven® 7075 T6511 lightweight Aluminum black hard anodized rear sprocket paired with Driven® C45 steel case hardened and quenched front sprockets
* Kit includes one-tooth-smaller-than-stock front sprocket
* RK’s 520 Aluminum Race Kit combines the enhanced performance of race gearing and lightweight rear sprockets to reduce rotating mass
* Experience quicker starts and quickest to your bike’s red line in every gear without sacrificing normal ride and handling
© Factory SuperBike 2025
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