Rolling Thunder Manufacturing is the leader in the custom frame building motorcycle after- market. Whether you’re looking to build a chopper, a pro-street, a softail, a rigid, an SLX or a drop seat; we have dozens of options allowing you to uniquely customize your bike.

We offer frames built to any specifications as well as our own line of production frames. We manufacturer Hardtail, Softail, Swingarm or bagger frames in many configurations you’re looking for. From pro-street to bobber to full blown choppers, we have a set-up to fit your next build.

Custom bagger, motorcycle & chopper frame manufacturer offering bagger, rigid, softail, and swingarm motorcycle chassis. Specializing in chopper frames, bagger frames, springer forks and rolling chassis.

Custom Harley Motorcycle Frames, Harley Wishbone, Bobbers, Rigid Choppers, Softail Sportsters, Board Track , Classic Knucklhead Frames. CALL FOR UPDATED PRICES 724 662 0581. SOFTAILS OR RIGIDS , SET UP FOR TWIN CAM OR EVOLUTION DRIVETRAINS , CALL TO DISCUSS YOUR NEXT CHOPPER OR BOBBER BUILD, ALL FRAMES COME …

Find the custom motorcycle frame from our collection, including Harley Davidson or Sportster styles. Craft your dream bike with our expert builders. Start it now!

Our specialty is building Custom Rolling Chassis and Kit Bikes. All of our bagger and motorcycle rollers are available in many configurations and built to order. You pick the chopper gas tank, frame and components

2025 Flyrite Choppers Bobber rigid frame -33° rake, 2" stretch in down tubes - 130 mm rear - (includes MSO) Frames are set up to accept big twin motors, pan head, shovel head, evo. This is the same frame that was used in our Bobber production models