Our stretch kit is all about form and function. We went the extra mile to provide a seamless package for the Z. We found the 4.5″ design to increase stability without compromising agility, and is far more structurally secure than other “longer at all costs” designs. Traditional axle blocks allow for easy and precise adjustment. The shouldered design flows smoothly into the swingarm. Plug dowels provide security without any visible hardware. Hard anodized black. Includes all hardware. Can be used with stock length brake line by spinning front banjo fitting.