Alliance 399 is the floatation Non Directional Lug Pattern with Central block to provide good performance on soft ground and be able to run on the road operations of Excavator. Bias Steel Belted construction to provide stability and to avoid deflection and puncture protection. Center block & Optimum NSD to create ride comfort without impacting tire life. Combination of NSD and Cut & Chip Compound to provide the required tire life. Open shoulder for good self cleaning. Angular Blocks for better Traction and Higher center mass for better stability.