Description:V2 of our rear uprights. We have further added more material to the hub for higher durability.**Note: If you are upgrading the suspension of XQ1 or XQ1S, you also need to purchase the 3.0mm outer suspension pins #XP-10602 and Hard Strong Front And Rear Composite Suspension Arms #XP-10597Feature:For: Xpress Execute Series TouringMaterial: CompositeColor: BlackInclude:Rear Uprights (2 pcs)