FXR Mockup Solid Isolators These rigid, 3D‑printed mockup isolators give builders a clean, stable, and highly accurate way to lock a drivetrain into an FXR chassis during the fabrication phase. They eliminate the flex of factory rubber mounts, keeping the drivetrain perfectly positioned for layout, alignment, and test‑fitting. Eliminates rubber isolator flex for precise drivetrain positioning. Improves accuracy for measuring, test‑fitting, and layout work. Keeps the drivetrain square and repeatable through the entire mockup process. Protects real rubber isolators from distortion or premature wear. Prevents unnecessary damage to expensive OEM/aftermarket components during mockup. What’s Included Solid Mockup Isolators. Rigid 3D‑printed replacements designed to hold the drivetrain firmly in position while you mark tabs, check fitment, and verify driveline geometry. Built for Builders Perfect for M8 -FXR swap mockup and fabrication. Ideal for test‑fitting, alignment checks, and setting driveline centerline. Reduces time and drivetrain movement during the early fab stages. Fitment Designed for mockup use on Harley‑Davidson FXR chassis.. Note: Minor shimming may be required depending on frame variations or custom geometry. Mockup‑Only Notice These isolators are intended for mockup and fabrication only. Not for riding or structural use. FAQ Can I ride with these installed? No. These are mockup‑only components and must be replaced with proper service parts before the bike is ridden. Do these replace the OEM rubber isolators? Yes — but only during mockup. They lock the drivetrain solidly for accurate fabrication work. Why use solid isolators during mockup? Rubber isolators flex and allow movement. These solid units keep drivetrain geometry stable and repeatable, improving accuracy while fabricating. Builder Notes Solid mockup isolators eliminate drivetrain shift while you set angles, verify centerline, and test routing. Builders report faster mockup cycles and more consistent measurements compared to working with flexible rubber isolators. Keywords: FXR mockup isolators, M8 FXR mockup, solid isolators, drivetrain alignment, Milwaukee‑Eight FXR conversion.
