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New Dunlop on-road truck tyres unveiled

Dunlop-SP346-Sipes-High-Wet-Grip-and-Winter-Mobility-copyDunlop’s brand new on-road truck tyres for long and regional haul applications are ready for whatever’s ahead; winter roads in particular. Both SP346 steer tyres and SP446 drive tyres carry the 3-Peak-Mountain-Snowflake (3PMSF) symbol as well as the M+S marking. This means that they meet the highest European requirements for truck winter tyres. With increasingly stringent winter tyre regulations spreading across the continent, these tyres offer high winter mobility in all on-road applications.

Meeting legal requirements is only half the battle in winter conditions. The ability to continue under challenging road conditions, such as sudden snow falls, is essential for any transport company. Not all fleets want to change their tyres as winter approaches, particularly if they do not operate in areas where severe winter conditions are common. Dunlop’s SP346 and SP446 tyres offer what fleet needs during this time of the year: high winter mobility.

“None of us know what’s ahead in terms of winter weather so it is essential to be prepared for all possibilities,” said Benjamin Willot, Director Marketing Commercial Tyres Goodyear Europe Middle, East and Africa. “Trucks that are stuck because they do not have the correct equipment in terms of tyres can result in failed deliveries and at worst lost contracts. Our new Dunlop on-road tyres offer high winter mobility so the risk of being caught out by unpredictable weather is very limited. In addition fleet operators can benefit from 10% higher mile and improved fuel economy of these tyres compared to their predecessors.”

As well as offering higher mileage and lower fuel consumption than its predecessor, the SP344, the innovative tread design of the Dunlop SP346 steer tyre meets the stringent 3PMSF EU homologation requirements for truck snow tyres and the M+S marking. The increased flexibility of the tread blocks, due to the deep sipes, allows better snow compaction compared to its predecessor. The high frequency zig zag sipes simultaneously target low wear, winter performance and aim high in wet grip index with the tread pattern being maintained throughout its life until it is ready for regrooving.

The Dunlop SP446 drive tyre also offers higher mileage than its predecessor, the SP444, as well as lowering fuel consumption. It also delivers very good traction in all conditions thanks to the ‘raindrop’ shape of the base of the sipes. This helps achieve both M+S and 3PMSF requirements and reduces the stresses around the bottom of the sipes.

SP346 and SP446 tyres can be retreaded as Dunlop TreadMax SP446 mold cure retreads, using the same tread patterns and similar materials as the new tyres. This means that the performance of the retreads is close to that of the new tyres, including their full winter capabilities.