This is an optional Exotek D413 Shock Spring Perch Set. These precision machined, polished and orange anodized aluminum shock spring cups feature extra milling to reduce weight, while providing a snug fit to reduce the risk of having a cup come loose and get lost when you crash. Additionally, the milled holes also helps to prevent debris from collecting inside.
Wednesday, Dec 16 2015 (about 4 years ago)
Exotek D413 Shock Spring Perch Set (4) (Orange)
I use them on front shocks only, So far I like these! 7 days at track not once have they come off, the stock ones would come off a lot.