Pirelli adds to trailer, semi range

A third tyre has been added to Pirelli’s trailer and semi-trailer line-up. The new ST:01 Base joins the ST:01 Neverending and Formula Trailer to round out the Italian tyre maker’s range for this market; with the commercial launch of the ST:01 Base in July, Pirelli says its trailer and semi-trailer portfolio now covers “every need from every haulier” and caters to varied priorities, including mileage and retreadability, low rolling resistance or durability – Pirelli says it now offers an answer to each of these.

The ST:01 Base is available in two versions – R for mainly regional use and H for predominantly motorway use. Pirelli says the ST:01 Base shares all the “usual characteristics” of the 01 Series, including profile, structure and materials. The compound and structure has been designed to optimise wear and extend tyre life while maintaining reliability and safety. The tread pattern features central grooves that contain deformation and reduce rolling resistance, while the land-sea ratio has been increased in order to benefit overall lifespan and durability. The tread is also designed to wear evenly and Pirelli says the zigzag pattern ensures the efficient expulsion of stones and other objects. At the same time it increases resistance to lateral impacts and other intrusions.

A dual compound bead and Pirelli’s “Hexagonal Bead Wire” HBW technology is said to guarantee driving comfort along with flexibility and strength. HBW consists of a bead wire that aids retreadability and ensures thermal stability throughout the bead, leading to greater durability.

ST:01 Base is initially available in size 385/65 R22.5, and in the final quarter of 2013 it will also be released in size 385/55 R22.5. The new tyre has been given an ‘A’ label rating for wet grip and ‘B’ for energy efficiency, while external noise is 73 decibels. Pricing structure sees the ST:01 Base positioned between the  ‘premium’ ST:01 Neverending and the  Formula Trailer; Pirelli says the ST:01 Base has a benchmark price of 100 per cent compared with the ST:01 Neverending’s 110 per cent and the Formula Trailer’s 85 per cent.