Kumho Ecsta ASX Ku21 Tires

All-Season Ultra High Performance Passenger Car Radial tire.


  • Asymmetrical tread design
  • High-tech silica compound
  • Large outside blocks
  • High-angle slant and circumferential grooves
  • E-technology step grooves and sipes increase edge effect
  • Multi-zone tread contour provides dynamic casing control
  • The ASX’s ESCOT technology controls the tension throughout the casing
  • The jointless cap and edge covers keep the two full-width steel belts in place
  • Variable pitch tread blocks and cross-grooves
  • Rim protector in lower sidewall
  • 30,000 Mile Limited Warranty
  • Road Hazard Protection


  • Optimizes all-season performance
  • Delivers the optimum balance of wet and snow traction, treadwear and fuel efficiency
  • Maximize cornering performance
  • Provide optimum water drainage to resist hydroplaning
  • For increased wet and snow performance
  • For improved comfort and handling
  • To provide a comfortable ride and maintain performance handling
  • To ensure strength, stability and maximum footprint during high performance driving
  • Reduce road harmonics for a quiet ride
  • Safeguards wheel from scratches and abrasions


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