Radius Rear Custom Motorcycle Fender – Hand-Spun Steel for Choppers & Bobbers
Build your vision from the ground up with the Radius Rear Custom Motorcycle Fender by Twisted Choppers. Whether you are a seasoned pro or a garage builder starting your first project, this fender provides the ultimate “blank canvas” for high-quality, American-made custom builds.
Hand-spun from heavy-duty 13-gauge U.S. steel, this fender is significantly thicker than standard off-the-shelf options. It is designed to be structurally sound enough to support a passenger when properly mounted with internal struts. Whether you are building a rigid chopper or a custom bobber, the radius is cut to perfectly contour a standard 18-inch motorcycle tire (max height 26.5″).
Note on Custom Fitment:
- Mounting: This is a custom part, not a bolt-on replacement. It requires custom spacers, bungs, or struts (sold separately). You will need to drill, weld, and fabricate mounts to fit your specific frame width and geometry.
- Finish: Shipped in raw, spun steel finish. As a hand-spun product, visible spinning lines are normal. We recommend using a high-build surfacer or body filler to smooth the surface before painting.
Specifications:
- Material: 13 Gauge U.S. Steel (TIG Welded)
- Diameter: 27 inches
- Sidewall Depth: 1.75 inches
- Fitment: Universal custom fit (Optimized for 18″ wheels)
- Origin: Proudly Made in the USA












Guy F. –
Almost perfect. Couldnt ask for much better
Thomas –
nice heavy gauge steel fender