Custom Fit
We make it fit and there is nothing better than a perfect fit.
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Testimonials
See what people have to say about their Castle frame
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Options
Hand pick each element on your custom frame or choose from one of our mountain or road kits.
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Gallery
Take a look at our frames being built, completed, and in action.
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Recent Blog Posts

See what's going on in Castle Framework's world.
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Back from paint, ready to travel.

Back from paint, ready to travel.

April 18, 2012
Erin Z’s cupler touring bike, ready to travel the world in a 26×26 x10 box....
Studio Images

Studio Images

April 3, 2012
I’m finally getting around to posting some studio images of the bicycles I built up for the North American Handmade Bicycle Show.  Each frame was built for two very different riders, with their own idea...
Going to NAHBS

Going to NAHBS

February 28, 2012
  Heading to the show tomorrow! Piling into truck with good buddy Erik of Alliance Bicycles. Here’s one of three show bikes I’ll be bringing: Sara’s customized, very small 26″ ...