M8‑FXR Swap Kit - KLEEN MOTO × RAMJET RACING

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Transform your FXR into a modern powerhouse with this comprehensive KLEEN MOTO × RAMJET RACING M8 conversion kit. Thoughtfully engineered through a collaborative design process, this kit delivers the essential components required to integrate the Milwaukee‑Eight into the FXR platform. Built for builders seeking elevated performance through intentional design.

Upgrade your swap with premium optional add-ons available in the dropdowns above. They’re not required, but they provide the best results and the easiest install. For additional information about these products, see the links below.

• Drivetrain Mockup Kit
• Dyna Peg Mounts
• Dyna Rear Brake Pedal
• Dyna Shift Lever
• Dyna Side Stand
• Dyna Side Stand Hardware Kit 
• EFI Fuel Pump Flange

Professional installation recommended

NOTE: MUST USE M8 TOURING DRIVETRAIN

What’s Included

• M8‑FXR Front Motor Mounts
• M8‑FXR Pivot Block Covers
• Softail Weld‑On Oil Cooler Mount & Tab
• Front Upper Engine Mount Weld‑On Bung
• Universal Regulator Bracket & Frame Tie‑In
• Internal Wiring Trim Rings
• Backbone Filler Plates
• Front Motor Mount Filler Plates
• Primary Drain Plug Filler Plate
• Main Center Dyna Crossmember
• Two Dyna Foot Control Mounting bungs
• Extra‑Strong Kickstand Lock/Stop
• Wrap‑Around Rear Crossmember Tubing with Two Gussets
• Rear Removable Crossmember Kit with Tabs & Chrome Hardware
• Rear Brake Master Cylinder Mounting Tab
• Oil Bag Filler Plate
• Installation Instructions

Ideal Uses

• Full FXR performance builds seeking modern M8 power.
• Chassis conversions requiring precise drivetrain alignment and new crossmembers.
• Custom fabrication shops needing a proven, engineered swap solution.
• Builders wanting to avoid one‑off guesswork and mismatched components.

Fitment & Requirements

• Designed specifically for Harley‑Davidson FXR chassis.
• Requires the use of an M8 Touring drivetrain. (Softail M8 engines will not work.)
• Intended for experienced builders familiar with frame modification and M8 swaps.

FAQ

Builder Notes

This kit was built to solve real‑world challenges that builders face when integrating an M8 drivetrain into the FXR chassis. The included crossmembers, tie‑ins, motor mounts, and filler plates ensure correct alignment and repeatable geometry eliminating the trial‑and‑error that typically consumes hours of fabrication time. For the cleanest install, mockup your drivetrain first, then tack all components in place before final welding.

Disclaimer: This product requires permanent frame modification, including cutting and welding. Installation should only be performed by individuals with appropriate fabrication experience. Improper installation may result in unsafe conditions, property damage, or personal injury. By proceeding with installation, the installer assumes all responsibility and liability for the work performed and the resulting vehicle condition. If you are not experienced in motorcycle frame fabrication, professional installation is strongly recommended

Keywords: M8 FXR swap, FXR M8 conversion kit, KleenMoto Ramjet kit, M8 Touring drivetrain swap, FXR chassis modification, Milwaukee‑Eight FXR build.