This is an optional Exotek Aluminum XB4 V2 Rear Hub Set. These heavy duty 7075 alloy machined rear hubs for the XB4'18 and '17 series buggies feature a symmetrical design, meaning the hubs can be used on either the left or right side making for easier front or rear shock mounting on the arms.
These hubs are also narrowed by 2mm compared to the stock hubs, thus allowing more wheelbase adjustments with the included alloy shims.
Also includes 2mm roll center shims to match the stock geometry.
This product was added to our catalog on March 23, 2018