Mounted through the front wheel fork of the Ninja ZX-4R, EP Front Spindle Bobbins offer crash protection for the forks, brake calipers and spindle retainers. Standing out from the front wheel, the nylon slider and aluminium spacer will likely be the first to receive impact in any incident. The nylon bobbin uses Evotech Performance's innovative design and is able to rotate on impact reducing wear and damage.