Norton Racing Lightweight Rear Brake Rotor – Kawasaki Ninja 400 / Z400 / 500



This lightweight rear brake rotor is laser cut and precision ground from high quality 410 Stainless Steel.  It includes the wheel speed sensor tone ring and is nearly a pound lighter than the OEM rear brake rotor (13.5 oz lighter to be exact).  This is for closed course race use only.  This lightweight rear rotor will still stop the bike, but braking force is reduced at higher speeds compared to the OEM rotor.

Read here about improving handling, acceleration, and braking by removing unsprung rotating mass from a motorcycle.



Additional information

Weight 1.33 lbs
Dimensions 11 × 11 × 0.5 in


  1. misnblu

    Gotta admit as little as I use the rear brake the looks alone are worth getting this. 😍
    Weight reduction is good as well.
    ⭐⭐⭐⭐⭐ Rating

    • Jesse Norton

      Right on point!

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