Technical Specs for Kumho
| Diameter | 24 |
| Width | 255 |
| Ratio | 30 |
| Speed Rating | W - 168 MPH |
| Load Rating | 97 (1609lbs) |
| Run Flat | Yes |
| Reinforced | Yes |
| Model | Ecsta ASX KU21 |
| Sidewall | BSW |
| UTQG | 420 AA/A |
| Recommended Rim | 8.5 - 9.5 |
| Section Width | 10.2 on 9.0 |
| Overall Diameter | 30.1 |
| Max Load | 1609 |
| RPM | 690 |
| Tread Depth | 10 |
| Max PSI (cold) | 50 |
Expanded Description
An ultra high performer for all seasons, the Ecsta ASX combines outstanding wet and dry grip with high performance handling and competent snow traction – all while delivering long mileage and great ride comfort. The Ecsta ASX comes with a 30,000-mile limited treadwear warranty.
Special Features
- Asymmetrical tread design optimizes all-season performance.
- High-tech silica compound delivers the optimum balance of wet and snow traction, treadwear and fuel efficiency.
- Large outside blocks maximize cornering performance.
- High-angle slant and circumferential grooves provide optimum water drainage to resist hydroplaning.
- E-technology step grooves and sipes increase edge effect for increased wet and snow performance.
- Multi-zone tread contour provides dynamic casing control for improved comfort and handling.
- The ASX’s ESCOT technology controls the tension throughout the casing to provide a comfortable ride and maintain performance handling.
- The jointless cap and edge covers keep the two full-width steel belts in place to ensure strength, stability and maximum footprint during high performance driving.
- Variable pitch tread blocks and cross-grooves reduce road harmonics for a quiet ride.
- Rim protector in lower sidewall safeguards wheel from scratches and abrasions.
- The ASX is available with two UTQG ratings. Sizes with a 60 aspect ratio and higher come with a UTQG of 420 A/A. 55 series and below come with a 420 AA/A UTQG rating.
Sample Vehicles
Acura Integra, Audi A4, BMW --, Dodge Dakota, Dodge Magnum, Hyudai Tiburon, Mazda 3, Mazda 6, Mazda Miata, Nissan Altima, Nissan Maxima, Subaru WRX, Toyota Camry, Toyota Celica, Volkswagon Golf GTI
Comparable Competitor Product
Bridgestone RE960 A/S Pole Position, Michelin Pilot Sport A/S, Pirelli PZero Nero A/S, Toyo Proxes 4, Yokohama ADVAN S4
*This item ships same business day if the order is placed before 12pm EST and the item is currently in stock.






