View Full Version : bias and radial

12-17-2005, 10:20 AM
just wondering what the difference is between a radial and a bias tire??

Andrew Goll
12-17-2005, 11:02 AM
ones a radial and the other ones bias

Andrew Goll
12-17-2005, 11:06 AM
bias is made of much softer rubber shittier on pavement and wear, radials are made of harder rubber smoother on pavement and will last longer, bias tires wont gum up like a radial, and the bias tire get much hotter when driven on pavement

radials also have steel cords

12-17-2005, 11:18 AM
It has to do with the way the tire is contructed, bias plys are old school, mainly only big off road tires still use this technology. On a radial tire, the plies are run from bead to bead directly across the tire (radially). In other words, the cords are perpendicular to the bead. Successive plies are just layered over the existing ones with all cords being parallel. A bias ply tire runs the plies at an angle to the bead (biased). Different layers have opposing angles, criss-crossing across the tire.

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89 F250 4x4

12-19-2005, 11:02 AM
bias ply is better for offroading because their sidewalls can withstand being aired down better. If you run a radial with low pressure so the sidewall buldges a lot you will start to blow the sidewall because it weaens them a lot.

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