Bridgestone S-03 questions
Sizes I am looking at are the standard S4/GT
sizes of 245/45 and 225/50. However the 245 shows as a "YR" speed rating and the 225 shows as a "WR". Are the two compatible?? All the stats (temp/traction/treadwear) show to be the same. I see that 928 Specialists sells a complete set of them in the 16" size, but looking for some living proof.....
I would suggest that you go directly to a tire expert, and get the info from the horse's mouth.
The big 3 are all familiar with the tires, or go to <a href="http://www.tirerack.com" target="_blank">www.tirerack.com</a> and they will give you the 411......
V - 149 mph
Z - 149+ mph
W - 168 mph
Y - 186 mph
Dave
You shouldn't have any problem with the "W" rating mixed with a "Y" rating as both exceed most 928's abilities.
Lifetime Rennlist
Member

A huge improvement in handling. These SO3's grip like crazy and are very quiet. The real test will be how long they last! BTW - I purchased them at COSTCO (special order) at a price that beats Tire Rack.
<img src="http://www.momentoffame.com/snapshots/MomentOfFame/l32019.jpg" alt=" - " />
<img src="http://www.momentoffame.com/snapshots/MomentOfFame/l32020.jpg" alt=" - " />
"not to mix speed ratings" which I value....but,
I'm thinking that the 245/45 tire is rated slightly higher (YR) just because it is slightly wider with a lower profile then the 225/50(WR). Most likely they are constructed the same way with the same compounds. Any thoughts??
Bridgestone doesn't really look like it has a
tech email or number to call for such matters.


