While the undisputed leader of the pack on and off the road is Atturo’s hardcore off-road focused TRAIL BLADE BOSS! The Trail Blade Boss GREEN LABEL Atturo has engineered for the popular Ultra4 aggressive off-road racing series is currently available in two 17” sizes (37x12.50R17 LT and 40x13.50R17 LT). The “Green Label” Trail Blade BOSS tires are both available in 8 and 10 ply-rated flotation sizes and carry Load Indexes of 124 and 136 respectively. The three-ply sidewall carcass supports the aggressive knife blade inspired tread lugs at a deep 22/32nds tread depth and very capable of conquering the infamous King of the Hammers and Baja events. A great amount of engineering attention was focused on the aggressive tread pattern and sticky compound required to compete in Ultra4 events. The new “race-proven” compound has created the tire’s nickname of “stickies”. It’s widely known that “racing improves the breed” and Atturo has learned that by extending the tread pattern over the tire’s shoulder and onto the sidewall will help drivers who practice airing-down their tires to get out of severe low traction situations…it’s more than a pretty face! To support the off-road legacy of the Trail Blade BOSS, Atturo will be supporting several Ultra4 teams throughout the season with the specific Trail Blade BOSS GREEN LABEL! The Green Label also known as “stickies” is a true NON-DOT competition tire designed for serious off-road competition. IN SUMMARY: The Green Label Trail Blade Boss competition tire features include – FULL 3 PLY SIDEWALL / Balanced tread with plenty of biting edges / Oversized tread blocks for secure traction / Engineered tread channels to allow water to escape. These channels are supported by raised stone ejectors to clear the tread / THE TRAIL BLADE BOSS – EXTREME OFF-ROAD GREEN LABEL – dedicated non-DOT off-road competition tires.