Graves Motorsports Works Ninja 400 Front Wheel Captive Spacers Kit W-Wwk-18ex4-04 Backrest Insert This is particularly effective on

This is particularly effective on exhaust systems with shorter silencers that can rob your bike of small throttle responsiveness while reducing the sound to acceptable levels

Please take full control of the torque

6061 T-6 billet aluminum

Sound reducing insert with spark arrestor (not included available separately)

If aftermarket seat is not Saddlemen or Lucky Daves step ups

Graves Motorsports Works Ninja 400 Front Wheel Captive Spacers Kit W-Wwk-18ex4-04 Backrest Insert This is particularly effective onGraves Motorsports Kawasaki Ninja 400 (2018 2019) WORKS Captive Front Wheel Spacer Kit. Built using R&D from the WORKS Graves race team bikes. These spacer kits replace your front wheels oem spacers with push in interlocking wheel spacers that stay in place. Great for quick change wheels, endurance racing and smooth wheels changing in general. Precision CNC machined from 7075 T6 billet aluminum and black anodized. Don't be fooled by cheap versions