ZC Rubber (Hangzhou Zhongce Rubber Co., Ltd) has introduced an upgraded version of its SV308 summer tyre. Called the SA57, the new product is available in 33 passenger car and nine SUV sizes, and is said to offer a ten per cent shorter wet braking distance than the previous generation tyre, along with five per cent improved wet handling, three per cent better dry handling, three per cent less noise and two per cent less rolling resistance.