Err.. when u bought it, did you ever think why it is so cheap for that kind of size ?

I never try before .. but many people said keep away from Silverstone. If 4x4 those car, silverstone is ok.

I am using the same size as you .. now Hankook S1 Evo.

The concept of Hankook Ventus S1 evo addresses the needs of owners of very fast high-performance cars and luxury vehicles that demand uncompromisingly sporty performance across all parameters, without having to dispense with attributes such as suspension comfort or low tyre noise.

As usual, Hankook’s developing engineers focused primarily on the safety criteria of handling properties, high grip and braking performance. Therefore, the use and development of the highly dispersible silica tread compound, which was used for the first time ever in creating the Ventus S1 evo, was a high priority. A new mixing process ensured a significantly higher silica enrichment level in the tread compound as well as an improved filler dispersion, which guarantees grip in the wet and at the same time enhances rolling resistance.
Its asymmetrical tread design with the characteristic massive circular tread rib built into the outer profile ensures exact steering feedback for a very precise handling even at highest speed.

In combination with a new concept sidewall profile, the closed design outer shoulder allows for maximum power transmission during cornering and exact steering feedback. Broad outer wave-form straight tread grooves effectively drain water and thus provide safety, even on wet streets.

A balanced surface contact pressure and power transmission for precise handling even at high speeds as well as optimized braking performance are enabled by Ventus S1 evo’s stiff steel belt package in combination with its high-density zero-degree nylon belt.