FEATHERING

• Improper alignment (TOE)

• Worn or damaged steering 
  and/or suspension parts

• Hard cornering

• Check/correct alignment

• Check/replace steering and/or suspension parts

• Based on tread depth rotate/replace tire

CUPPING

• Worn or damaged steering and/or suspension parts

• Improper balancing

• Check/replace steering and/or suspension parts

• Check/correct balance

• Check/replace wheels

• Based on tread depth rotate/replace tire

ONE EDGE

• Improper alignment (CAMBER)

• Worn or damaged steering and/or suspension parts

• Check/correct alignment

• Check/replace steering and/or suspension parts

CENTER OR BOTH EDGES

• Center wear - over inflated

• Both edges - under inflated
                        overloaded
                        slow leak

• Adjust air pressure

• Check fitment

• Check/correct air leak