Swingarm Spoofers
These 3D‑printed swingarm replicator blocks give builders a clean, accurate way to mockup a drivetrain in an FXR chassis without installing the full swingarm assembly. They maintain true swingarm spacing and alignment, making mockup faster, cleaner, and more precise.
- Replicates swingarm geometry for accurate drivetrain positioning.
- No full rear assembly required during early fabrication.
- Keeps the drivetrain square and repeatable for reliable measurements.
- Prevents unnecessary wear or damage to expensive OEM/aftermarket parts.
- Keeps the workspace clean by removing bulky assemblies during mockup.
What’s Included
- Swingarm Replicator Blocks. Dimensionally accurate blocks that mimic swingarm mount spacing. They act as a rigid reference to position and level the M8 drivetrain during fabrication and layout.
Built for Builders
- Perfect for mockup.
- Ideal for test‑fitting, measuring, marking tabs, and layout work.
- Reduces time and clutter 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 blocks are intended for mockup and fabrication only. Not for riding or structural use.
FAQ
Do I need to install the swingarm for mockup?
No. These replicator blocks take the place of the swingarm mounts, allowing you to position and square the drivetrain without the full rear assembly installed.
Are these safe for running?
No. These are mockup‑only components and must be removed before final assembly.
Builder Notes
The swingarm spoofers keep the drivetrain exactly where you need it while you mark tabs, check alignment, and test routing. Builders report faster mockup cycles and cleaner fabrication work without a full swingarm in the way.
Keywords: FXR swingarm spacer, M8 FXR mockup, swingarm replicator blocks, M8 FXR conversion, FXR drivetrain spacing.