About Granite

What we do.

We build custom titanium tandems that are designed and built to fit each customer’s specific size and lifestyle. Your adventures are our design perimeters. Want to learn more about the design process, our bikes, or what we’re designing? Visit our Tandem Design page.

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Who we are.

David Lafferty, is mechanical engineer, bike builder, and tandem enthusiast. He started building bikes in his dorm at MIT. He combines his passion for riding with his depth of engineering knowledge to create one-of-a-kind bicycles and custom components.

Emily Lafferty, MBA is a stoker, business developer, and athlete. With experience across various functional areas of business, she aims to create a process that not only helps customers own their dream bike, but makes building that bike a fun and empowering experience.  

Why we do it.

Many of our best days are spent riding our tandem. Granite Tandem Design allows us to share our love for riding, racing, and traveling with the cycling community one custom bike at a time. If we can expand someone’s love for riding through our bikes, then in some small way, we believe we’re making the world a better place.

Contact us if you’re interest in learning more about what we do, who we are, or why we do it.

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