The RM852 is Roadmaster Tires newest premium long haul drive tire. The 3-D micro-gauge siping along with the solid shoulder design offers improved traction in challenging weather conditions. The tread lugs have angled groove walls that are stacked to resist squirm and promote even wear. The RM852 has a very deep 30/32nd tread depth along with premium tread compounding to provide exceptional mileage and help lower your truck or fleet's operating expenses. An extremely innovative product for the price, and a Tires Easy recommendation for excellent value.