Tire Rack Consumer Review of the Dunlop Direzza Sport Z1 Star Spec

Note: The following post was created from content submitted via Tire Rack's consumer surveys. Information shown is the opinion of the consumer and meant to be used for comparison shopping purposes.
Vehicle: 2000 Honda S2000
Miles Driven on Tires: 8,000
Location: Calgary, AB
Driving Condition: Track/Autocross
Driving Style: Spirited
Dunlop Direzza Sport Z1 Star Spec
Initial Review: 8,000 miles on tires
July 26, 2012

Never drove the tires on wet weather except the very day the tires were completely bald, any bald tire has poor hydroplaning resistance.

Tire yields instant grip levels, performance is approximately 90% of the Kumho XS tire (dry grip only) 255 width makes plenty of noise, not because of the tire, rather the seating position of the driver relative to the tire (Honda s2000) the tire noise is very noticeable when near the end, again it is the sitting position that makes the sound appear noisy. The tire wear is realized from the suspension tuning problem (toe-in) not the actual tire itself.

Tires do breakaway pretty well, but it depends on the suspension tuning of the vehicle. In an ideal suspension setup (fairly aggressive with camber, roll centre adjustment, sway bars, higher spring rates etc.) the tire can act different; bad or good. In this case, the tire is amazingly excellent for an experienced driver. The tire breakaway characteristic is slightly more forgiving than the Kumho XS. Full suspension crush was realized with the tire grip the Z1ss (457lb/in spring rate) Meaning if a driver is to properly use the tire to the full potential, I would highly recommend higher spring rates or sway bars.

Able to blast through slalom course at 75mph with these tire, with kumho you can achieve 77mph. I wish Dunlop makes a unidirectional tire that has a variable UTQG rating across its tread. Will I buy these again, maybe. I would be interesting if Dunlop made a Z1 Star Spec 2 tire with AA traction.

Read More Reviews
By Vehicle | By Tire

Leave a comment