Precision engineered to fit the sides of each wheel, Evotech Spindle Bobbins Kit for the Kawasaki Z900 offers protection to the wheel spindles, lower front forks, brake calipers and rear swingarm. Effortlessly installed, the black bobbins are held in place by a rolled-thread spindle rod. The durable materials of injection-moulded nylon and aluminium are anticipated to be first to take impact should an incident occur, reducing costly damage to the motorcycle.