The Bawarrion Beadlock Spacer is made for all Bawarrion Beadlock Wheels and will be needed if you like to install Tires with bigger Beads than 19mm.
Some tires have bigger Beads than 19mm. Bawarrion Beadlock Wheels are designed to hold up to 2 Spacers without changing the Bolts. For Example: To install PitBull's Rockers you need 2 Spacer each Wheel. The BFG KM 3is fine without any spacers.
• 1/8" ( 3mm ) black
• to Mount Tires with 21-24 mm Bead
• up to two spacer per Wheel