The IMPACT tire features a dense small square lug pattern with offset lug rows in the center of the tire to deliver maximum forward traction and good wear characteristics. The two outer rows of lugs are parallel to create a circumferential groove at the edge of the tire to give the tire very predicable side bite. This allows the car to rotate in the center of the turn while still feeling very stable and predictable. The buggy version was the 2010-2011 IFMAR World Championship winning tire. The new EVO Truggy tires feature the new ROAR legal 1:8 Truggy bead design and a redesigned carcass shape that includes internal ribbing. The new bead design mimics the 1:8 buggy bead design which will make for easier assembly and a stronger bond between the wheel and the tire. The carcass shape has been refined to take advantage of the new bead design. Internal ribbing has been added to minimize tire growth at high RPM and support the tire contact patch during cornering. All this adds up to much improved handling and lower lap times.