AVON 3D ULTRA RADIAL TIRES
AVON TIRES PRODUCED ITS FIRST motorcycle tire in 1911, and a century later, the small U.K.-based company released its 3D Ultra sportbike tires to the press at the Almeria Circuit in southern Spain.
3D Ultra is a catch-all for three grades of performance-oriented tires: Sport, Supersport and Xtreme. 3D refers to the interlocking, three-dimensional “siping” that Avon uses to improve grip, stability and warm-up without inducing tread distortion common with larger, deeper grooving.
First of the three models is the 3D Ultra Sport, a performance road tire that utilizes a special silica tread compound in three different grades: harder at the center, softer at the sides, plus a third layer, applied between the tread and carcass, which exists to prevent the tire from overheating. Additionally,
Avon has developed
“variable-belt density” technology for a more-rigid, longer-lasting central section and more-flexible (i.e., larger footprint), grippier sides. The latter feature is common to the entire 3D Ultra line, only difference being the tread pattern and compound.
The Supersport and Xtreme share a softer compound for road and track use, while the Xtreme has a more track focused tread design with fewer groves
A big storm hit Almeria the night before our press ride and continued until the early afternoon the following day. The track never completely dried out,
but we were able to put in a few laps on the 3D Ultra Supersport.
Applying due care with the throttle of the Yamaha R6 I was riding, 1 found the Supersport was able to generate excellent traction even in those treacherous, mixed conditions. Furthermore, the Supersport appreciably enhanced the quality of the R6’s chassis, especially its agility and steering response.
While Avon’s 3D Ultra Supersport proved consistent beyond my expectations, a test of the Ultra Xtreme will have to wait for another day. And a dry racetrack. —Bruno dePrato