Kawasaki KRX & KRX4 1000 6" Portal Gear Lift

This is where things stop being “trail ready” and start being built.

The 6” Portal Gear Lift is for riders who want maximum clearance, maximum torque, and a setup that can handle extreme terrain without beating up the rest of the machine. By moving gear reduction to the hubs, you’re not just lifting the machine—you’re fundamentally improving how power is delivered.

If you’re building for mud, big tires, or aggressive riding, this is the top tier.

• 6” lift via portal hub system
• Gear reduction options: 30%, 45%, or 60%
• Dual idler gear design for maximum strength
• 9310 alloy steel precision-ground gears
• 4340 hardened steel drive shaft
• Available in cast or billet aluminum housings
• Universal hubs with multiple bolt patterns
• Precision-ground stainless steel slotted rotors

• Adds 2” total track width (front and rear offset)
• Gear reduction significantly reduces drivetrain stress

• Recommended setups:
  Up to 37” tires → 30% reduction
  Up to 40” tires → 45% reduction with forward offset A-arms
  40”+ tires → 60% reduction with forward offset A-arms

• Wheel requirements:
  Minimum 18” wheels
  18” wheels max 4.5” backspacing
  20”+ wheels max 5” backspacing
  May require spacers depending on wheel center bore

• Remove factory hubs, brakes, and knuckles
• Install backing plates and portal boxes
• Attach steering arms and caliper mounts
• Install extended brake lines
• Mount hubs, rotors, and wheels
• Torque all hardware to specification
• Bleed brakes and verify full system function