Testing Ultra High Performance All-Season tires.

Wednesday, July 14, 2010 by Henry Carlson
This week, I tested the Dunlop SP Sport Signature, Pirelli PZero Nero All Season, Sumitomo HTR
A/S P01
and the Yokohama AVID ENVigor, Ultra High Performance All-Season tires.

On our 6.6-mile Read World Road Ride, the weather was sunny and 89 degrees. I found all four tires to have good handling and they were all very quiet, except the Pirelli, which had a slight hum. The Sumitomo had the best ride and the Pirelli was a bit harsh.

On our Performance Test Track Drive, the weather was hot and humid and the track was dry. I found all four tires to be comparable in handling, cornering and braking and was impressed with all of them considering that they are all-season tires.

Watch for our completed test results online.

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