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Kumho Ecsta ASX KU21 P235/55R-17

  • Part Number: 1911613
  • Service Description: 99 W
  • UTQG: 420AAA
  • Sidewall: BW
  • Load Range: B (4 Ply)
  • Type: Passenger
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Kumho Ecsta ASX KU21 P235/55R-17

The Kumho Ecsta ASX (ASX for All-Season Xtreme) KU21 tires are engineered for sports cars, coupes, and sedans. These ultra-high performance tires feature an asymmetric tread design with large outer blocks for sporty handling and crisp steering response. A high volume of high-angle slant and circumferential grooves improves resistance to hydroplaning and enhances traction on wet surfaces. On the center, blocks are optimized to reduce noise and provide consistent surface contact for superior straight-line stability.

Features & Benefits

  • Intensive siping ensures superb grip on wet and light snow surfaces.
  • Dynamic Casing Shape Technology improves ride comfort
  • Twin High-Tensile Steel Belts enhance high-speed capability

Tire Specifications

Ecsta ASX KU21 P235/55R-17

Size UTQG Max. Load Inflation Pressure Tread Depth Rim Width Range Sect. Width Tread Width Overall Diam
P235/55R-17 420AAA 1,709 lbs 51 psi 11/32nds 6.5-8.5" 10" N/A 27"

Purchase includes the Kumho Ecsta ASX KU21 tire only. The wheel rim shown in the picture is not included. Picture provided is a stock picture from the manufacturer and may or may not reflect the actual product being ordered.

All Kumho Ecsta ASX KU21 tires are continuously developing with manufactured improvements. With that said, Simple Tire and the manufacturers have the right to change these tire specifications at any time without notice or obligation.

If you have any questions, please email us at

Please Note: Specifications of the Kumho Ecsta ASX KU21 tires shown above are listed to be as accurate as possible based on the information provided to us by Kumho tires.

Available Sizes & Prices

Ecsta ASX KU21 P235/55R-17

Size Serv. Desc. UTQG Sidewall Part Number Price Qty
P205/45R16 87W 420AAA BW 1741513 View Details
P205/50R16 87W 420AAA BW 1741713 View Details
P215/45R18 93W 420AAA BW 2102343 View Details
P215/50R16 90W 420AAA BW 1742013 $419.88 set of 4 $104.97 View Details
P225/40R18 92W 420AAA BW 1735813 View Details
P225/45R18 94W 420AAA BW 1911413 View Details
P225/50R16 92W 420AAA BW 1734313 View Details
P255/30R22 95W 420AAA BW 1888313 View Details
P255/45R17 98W 420AAA BW 1742413 $459.84 set of 4 $114.96 View Details
P255/50R17 101W 420AAA BW 1742613 View Details

Treadlife Warranty

Ecsta ASX KU21 P235/55R-17

This product is not covered by a manufacturer’s treadlife warranty.

Customer Support

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Ratings & Reviews

Kumho Ecsta ASX KU21

im already a big fan of kumho tires and these were nothing short of awesome
Installed the Kumho Ecsta ASX tires on my Audi TT and felt an immediate difference in the handling and grip. I had some worn Yokohamas when I got the car and these tires were a great replacement. The combination of the audi all wheel drive and these tires made driving in the rain and snow easy.

Kumho Ecsta ASX KU21 P235/55R-17

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