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MICHELIN AMERICAS TRUCK TIRES
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TREAD DESIGN CATEGORIES

THE DIFFERENCES BETWEEN RIB TREAD AND BLOCK OR LUG TREAD.

Generally speaking, there are two basic types of tread designs. One is optimized for fuel efficiency, while the other is configured for increased traction. Depending upon your vehicle needs and operational conditions, we can help you choose the right design.

Rib Tread Design
Rib Tread Design

Characterization: Grooves placed parallel to the bead, thus forming ribs, ranging in tread depths from 11/32nds to 23/32nds.

Benefits: Usually significantly better for fuel economy, although does not provide enhanced wet or snow traction.

Position: Usually found on the steering axle of a truck/tractor and on other free rolling axles such as trailers, dollies, tag and pusher axles. Also found on torque axles when traction is not a high priority.

Block or Lug Tread Design
Block or Lug Tread Design

Characterization: Grooves placed laterally and perpendicular to the bead, ranging from 14/32nds to 32/32nds.

Benefits: Selected primarily for traction and improved mileage.

Position: Usually found on the drive or torque axle. The increased tread depth is needed to offset the scrubbing and/or spinning that can occur when power is transmitted to the drive axle.

Due to constant innovation and development, the types and sizes of MICHELIN® tires and retreads are always changing. For the most current product offerings, please also refer to our Tire and Retread Selector.

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