Aftermarket Assassins 2024+ RZR XP 1000 S1 Clutch KitFits 2024+ RZR XP 1000 Models 2 & 4 Seat This should be one of your first modifications! Our S1 recoil clutch kits pack a huge punch! No matter the terrain, they hit hard and just keep pulling for days. On the trail or at the race you'll notice wicked acceleration and instant clutch response when getting back into the throttle after hammering that corner. In the dunes you'll see the same benefits, but also have much less bogging when climbing that big