Ok I have finally sorted the S4 out after a marathon 4 years now it finally handles as a ducati should with new forks and Ohlins shock and higher 36psi in the rear tire ...
so i had a look at my M750 ,,,, I have been putting up with less than perfect handling compared to my exemplary 750ss from 1991 so i increased rear preload a tad but the main improvement was putting 36psi in the rear instead of 32 that ducati reccomend ,, now the bike is as good as the 750ss .........amazing and a useful tip for everyone ,,, seems according to pirelli tire developer that i met that Ducati tested these bikes 10-20 years ago on race tracks where lower pressures are relevant and also newer 2 and 3 compound tire technology works better on the road with about 10% higher pressures ....
try it and be suprised.
__________________
MONSTERMAN
Just realize that the tires will generate less heat that way, and not be as grippy as they easily could be. So the handling and responsiveness may have a + improvement, but overall grip will likely be lower.
What are the recommendations if you use this? http://www.pirelli.com/tyre/ww/en/motorcycle/genericContent/fitment.html (http://www.pirelli.com/tyre/ww/en/motorcycle/genericContent/fitment.html)
http://www.pirelli.com/tyre/ww/en/motorcycle/genericContent/fitment.html#.Txxs7IFALmc (http://www.pirelli.com/tyre/ww/en/motorcycle/genericContent/fitment.html#.Txxs7IFALmc)
It calls for 2.2 and 2.4 BAR on my 796 ABS which appears very close although I run 2.25 and 2.5 BAR @ 175# which seems best for me on the road. (That's 32 & 36 PSI which is also what the owners manual specifies.)
links dont specify a tire but on streetbikes with pirelli's I run close to 33-33. 36 seems a bit high but if thats what you've found works then go for it.
Quote from: xcaptainxbloodx on January 22, 2012, 12:44:35 PM
links dont specify a tire but on streetbikes with pirelli's I run close to 33-33. 36 seems a bit high but if thats what you've found works then go for it.
Swap ends much? ;) Every Euro bike I've ever owned specified +3 - +4 PSI in the rear..., Brit, German or Italian.
The links work; you have to plug in your bike.
I found that higher pressures in the rear actually increased grip , pirelli tech told me the new 2 and 3 compound tires are softer compounds than the stuff 10 years ago and thats what makes the difference , bike was all wallowing with 32 in the rear .
On the street, yeah I think 32 is a bit low. 34-35 is about right.
I typically run 30f 32r on my '90s SS....but I only ride it hard!