Paragon Machine Works is the world's premier provider of titanium bicycle frame building components. We also carry a wide assortment of steel, stainless steel and aluminum components. All of our products are manufactured on site at our shop in Richmond, California.
Download the Paragon Machine Works Products and Price List.
For direct European distribution of Paragon Machine Works parts, visit oTm Bikes. Please note: oTm Bikes is not the exclusive European distributor for Paragon Machine Works, but provides another alternative for ordering.
Our selection of bottom brackets shells includes threaded, non-threaded, BB30, PF30, and for Bushnell eccentric in a variety of sizes and materials. They are all machined in one operation. The threads, bores, and faces are as perfectly concentric, square, and parallel as can be manufactured on modern CNC equipment. There is no need for any pre-machining on the framebuilders part before fabrication. All of our threaded bottom bracket shells are 1.37" x 24 threads per inch, right and left threaded (also know as British Standard, ISO/English or BSA), and are compatible with all modern threaded bottom bracket spindles.
Our brake mounting components are available in titanium, steel and stainless steel. This category includes: road bike brake bridges, cantilever brake bosses, disc brake mounts and replacement parts for brake bosses.
All of Paragon Machine Work's bottle openers are made to last; the only reason you'll ever need to replace one is if you lose it. They make perfect gifts and party favors, and can be customized with your company name and logo for promotional swag. Hands down and bottles up, a PMW bottle opener will be the best one you've ever owned.
We carry a wide variety of mitered and unmitered single, double, and triple cable stops. Included in this category are shift bosses, STI stops, and guides for hydraulic disc brake lines.
This category includes front dropouts and non-adjustable rear dropouts for road, mountain, single speed frames, and disc brake applications. Also included are replacement hangers for our dropouts.
Click here for useful information on our dropouts.
For help choosing a replacement hanger, see our Replacement Hanger Guide.
This category includes our adjustable sliding and rocker dropouts as well as their replaceable inserts. Belt drive options and Rohloff applications are also available.
Click here for answers to frequently asked question about our adjustable dropouts.
Click here to view our Adjustable Dropout Overview.
For help choosing a replacement insert, see our Adjustable Dropout Insert Guide.
This category includes tools needed to manufacture a bicycle frame such as heatsinks, hole saw arbors, purge plugs and tube blocks.
Our headtubes are available in titanium and steel and accept all 44 mm headset cups. By using different headsets they can use forks with 1 1/8" and 1 1/2" straight and tapered steerers.
This catch-all category includes a variety of bicycle frame building components in titanium, steel and stainless steel: belt drive options, binders, bolt kits, water bottle bosses, bullets, crown race, derailleur mounts, ISCG mounts, rack mounts, seat collars and others.
Our selection of stem parts includes back plates, front plates, shims and steerer clamps. Our front plates can be anodized and custom engraved with your company logo.
Click here for useful information on our stem parts.