Battery Trays and Battery Boxes

For industry-leading brands like Antigravity, Shorai, EarthX, and more.

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Price Matching

We will match or beat any advertised price on the web!

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0% Financing with Klarna®

for up to 12 months!

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Fabrication Parts

We have tons of Bungs and Mounting Tabs in many shapes and sizes.

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Brass, aluminum, and steel petcocks and all shapes and sizes!

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Motorcycle Parts, Gear,
and Accessories

Billet Proof Designs was established in 2005 with the goal of providing the best, most affordable motorcycle parts and customer service on the market. We are RIDERS HELPING RIDERS build the bikes of their dreams.

Shop now with us and we promise you'll be a customer for life!



The guys at Billet Proof Designs are top notch in quality and design. Keep up the great work.

- Rusty Nut Trikes

Stopped into their shop today, the guys invited me in like family, super nice dudes, I will definitely be a returning customer.

- Doug Lowery

Awesome to deal with. Very fast and fairly priced. Was very responsive and the owner himself delt with me directly.

- Steve Longj