Dunlop Direzza Sport Z1 Star Spec for my 2001 S2000

These just arrived for me today [ordered from tirerack yesterday and got them today, these guys are great !!!!] , I am so exited to put these on especially since MY01 came with some 500 tread wear Yoko Avid V4S all season tires (I think its going to be night and day for me).

The Picture shows the front (205/55/16) and the rear (225/50/16), they have got decent stagger.

I researched a lot before buying a 225/50/16 in the rear due to the 8.5'' Tread Width of the original OEM S-02s, and I must say I was correct, these tires are really really wide for a 225 mm tire, and although I cannot definitively say [see below why] the exact value of the tread width on these, they are WIDE ....and my best guess would be these are close to 8.5'' or may be more ...


TIRERACK.COMs definition
[The tread width is the distance between the outer edge and the inner edge of the tread of a new tire. However today's radial tires often feature tread designs that incorporate rounded shoulders and there is no industry standard pertaining to "how much" of the rounded shoulders should be included in the tread width measurement]

Anyway I will be putting these on hopefully tomorrow and I don't think I need to share anything about how well they perform as they seem to be one of the stickiest street legal tire on the market today.

What is also perplexing is that Dunlop have not published the tread width for the Z1 Star Specs, but they do have these numbers for the DZ101 ()

[Tire]---------------[Approved Rim Width]--------------[Tread Width]
DZ101-------------------- 6-8 ---------------------------------8.2''
Z1 Star Spec ------------ 7-9 ---------------------------------????

The Approved Rim Width seems to indicate that the 225/50/16 Z1 Star Spec Tread Width is definitely more than 8.2''

Anyway I just wanted to put out this information I found, with the hope that this might expand/open up the options for choosing rear tire for AP1 owners on stock rims, especially considering how painful it is not to have many options in 245/45/16.

-Kishore

Hi, I am Kishore Jalleda, I am from the beautiful city of Hyderabad, India. I did my bachelors in Mechanical Engineering from REC Warangal, India (Now called NIT Warangal). Then I came to the US to do my Masters in Computer Science & Mathematics from Ohio University , Athens, Ohio.

I am currently working as an Operations Manager for a start-up called IMVU , in Palo Alto, CA. Its basically a high traffic 3D Instant Messaging Site with over 10 Million registered users, and recently peaked into the top 500 sites in the world in terms of traffic according to Alexa.

Prior to joining IMVU, I worked as a Systems and Network Engineer at Critical Mention Inc (a Startup founded in 2003) in New York City. Its basically a Web based TV search Engine Company with several Fortune 500 Clients, it also launched a new product called ClipSyndicate in 2006.


Prior to Joining Critical Mention, I worked as a Unix Systems Administrator for 4kids Entertainment, New York City. It is primarily a global provider of children's entertainment and merchandise licensing based in New York, with international offices in UK. I worked for the Web Department and I was primarily responsible for running and maintaining their websites (http://4kids.tv, http://winxclub.tv, http://yugioh.com and few others).