An extreme-performance tire with Run-Flat technology.

  • Asymmetric tread pattern helps provide a balance of wet and dry performance
  • A solid center rib helps enhance steering response and driver feedback
  • Circumferential and lateral-sweeping grooves help provide efficient water evacuation for enhanced wet traction
  • Jointless Band Technology helps maintain the tire's shape, enabling smooth performance at highway speeds
  • Multi-Pitch Tread Design Technology helps reduce noise for a quiet ride
  • Dunlop Self-Supporting Technology uses a patented sidewall construction to allow continued driving on a flat tire for up to 50 miles at 50 mph in normal conditions

Detailed Information

Type and Size
Tire Model
Dunlop SP Sport Maxx GT 600 DSST
Car Type
Rim Diameter
20 "
255 / 285 mm
Aspect Ratio
35 / 40 %
Special Features
Mud and Snow
Extra Load
Speed and Load
Speed Index
Y (max 186 mph)
Load Index (max load for a tire)

Dunlop SP Sport Maxx GT 600 DSST Sizes & Specifications

Rim Model Size Index Features sidewall styling overall diameter section width approved rim width max inflation pressure utqg revs per mile load range measured rim width tread depth max load
R20 255/40 R20 97Y Runflat 255/40 R20 97Y Runflat BW 28.0 10.2 8.5 - 10 51 200/A/A 746.0 SL 9.0 8 1,609
R20 285/35 R20 100Y 285/35 R20 100Y BW 27.9 11.4 9.5 - 11 51 200/A/A 750.0 SL 10.0 8 1,764

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  • Feb 12, 2015

    Head2Head 2015 Nissan GT-R Nismo Hot Lap | Tire Rack

    Standing at Turn 5 of Big Willow, Tire Rack's Matt Edmonds and Motor Trend Head 2 Head's Randy Pobst chat a bit about the 2015 Nissan GTR Nismo edition before Pobst abuses it on the track.