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Used Toyo Observe GSI-5 Tires


The Observe GSI-5 is a studless winter ice-and-snow tire from Toyo for cars, crossovers and SUVs. Depending on size, it is rated H for speeds up to 130 miles per hour; T, up to 118; or S, up to 112. The tread compound contains carbonic powder developed from bamboo that absorbs moisture on the road to enhance wet and ice grip.

The five ribs are marked by zigzag sipes for biting ice and wet roads, arranged in a spider web shape for multidirectional stability and traction. The solid central rib enhances straight-line stability and all-directional traction. Adjacent ribs have diagonal blocks formed by “Z”-shaped grooves. The shoulders have lateral grooves and blocks. All blocks and the center rib have saw tooth edges for increased start-and-stop traction.

  • Advanced drainage -Four wide circumferential channels and wide grooves disperse slush and water to preserve grip.
  • No studs needed -A special tread compound and thousands of edges from zigzag sipes grab ice and packed snow.
  • Deep snow -The aggressive tread can outgrip an all-season tire in deep snow.
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