Radius Rear Custom Fender Hand-Spun Steel Choppers Bobbers
Build your custom motorcycle from the ground up with a blank canvas that handles everything your imagination demands.
The Radius Rear Fender delivers the clean, classic arc profile that choppers and bobbers have been built around for decades, letting you shape the final look entirely in your shop.

Key Features:

Hand-spun from 13-gauge U.S. steel – significantly thicker and heavier than standard off-the-shelf fenders
Classic radius arc profile – the clean, proven blank canvas for chopper and bobber builds
Standard 1.75-inch sidewall depth – ready for flat struts, welded bungs, or custom mounting hardware
Structurally strong enough to support a passenger when properly mounted with internal struts
Ships raw for full control over surface prep, body filler, and paint or powder coat finish

Technical Specifications:

Style: Standard Radius (Classic Side Profile)
Material: 13 Gauge U.S. Steel, TIG Welded
Outer Diameter: 27 inches
Sidewall Depth: 1.75 inches
Wheel Compatibility: Optimized for 18-inch motorcycle wheels
Finish: Raw, uncoated hand-spun steel
Origin: Made in the USA

Fitment Notes:

This is a custom fabrication part – not a bolt-on replacement for any specific motorcycle
Requires custom spacers, bungs, or struts for mounting; hardware sold separately
Drilling, welding, and fabrication are required to fit your specific frame width and geometry
Supplied in raw, uncoated spun steel finish; visible spinning lines are normal and expected on hand-spun parts
Apply high-build surfacer or body filler to smooth the surface before painting or powder coating
Optimized for standard 18-inch motorcycle wheels; select fender width by rear tire size.

Fender Size:

6 Inch For 130mm Tire
7 Inch For 160mm Tire
7.75 Inch For 170mm Tire
8.5 Inch For 180mm Tire
9 Inch For 200mm Tire
10.5 Inch For 240mm Tire
11 Inch For 250mm Tire
11.5 Inch For 260mm Tire
12 Inch For 280mm Tire
12.5 Inch For 280/300mm Tire
13 Inch For 300mm Tire
14 Inch For 330mm Tire