This Is An Aluminum I-Arm For Use With The Front Upper Arm Of The YD-2 Series. It Features A Red Anodized Color That Matches The Red Version Of The YD-2 Series. By Moving The Spacers, The Caster Angle Can Be Adjusted Within A Range Of 7mm Back And Forth, Allowing For A Greater Adjustment Range Than The Standard Setting And Enabling A Smaller Caster Angle. Although Made Of High-Rigidity Aluminum, The I-Arm Shape Ensures That The Product Is As Lightweight As Possible.
When Changing From The Standard Resin Type To This Product, Please Also Use The D-155 Series Upper I-Arm Rod End Adapter.