01 Series FW:01 and TW:01 winter tyres for steer axle and drive axle respectively were developed by Pirelli Research and Development to assure top performance and safety on wet, snow-covered, or icy roads with temperatures below 4° centigrade, for medium and long range haulage.
These features are largely based on the fundamental role played by the structure, the tread patterns and the special formulation of the rubber compounds (with two Pirelli patents pending) which have high silica contents, both in the tread and under tread compounds.
The tread patterns of W:01 line tyres play a key role in determining performance of the product. The deep siping, the innovative pitch sequence, and the blocks geometry make possible obtaining exceptionally well-balanced performance in terms of traction, handling on snow, reduced stopping distances on wet roads, high acoustic comfort and high mileage.
In addition, the dense block pattern and the high void ratio of the tread design allow achieving high levels of acoustic comfort, making the use of the new W:01 optimal, especially on coaches. In this case, the combination of FW:01 on the steer axle and TW:01 on the drive axle maximises the mileage.
Tyre models FW:01 and TW:01are marked ECOIMPACT on the sidewall, as are all tyres in the latest generation 01 Series, certifying reduced environmental impact thanks to:
Winter grip: safety and mileage in critical winter conditions
High retreadability: of tyres due to the use of highly aromatic oil free compounds
Energy™ Efficient: low rolling resistance, reduced fuel consumption and less CO2 emissions
Low noise: noise levels are in line with the forthcoming 2012 European directives
With respect to the preceding lines, these new tyres provide:
+30% retread rate
+20% traction on snow
+10% grip and performance on wet roads