HD677

The design with 3D grooves increased the contacting area with and  snow  and  improved  the  grasp  force.The  pattern  design  with

continuous pattern in the tire cap effectively increased the rigidity the pattern,the slant fine and wave grooves ensures better stability

of steerability.

The optimized design arrangement of stud hole increases the force  on  snow/icy  road  and  reduced  the  noise,providing  better

steerability and traction force on snow/icy road.

The design with directional V-Shape grooves enhances the of water  and  snow  n  the  grooves,which  can  effectively  drainage

the snow and water and provides better traction and grasp force the snow/icy road.