ST4 vs. ST4s — — The Ultimate Ducati Forum

4 Июн 2015 | Author: | Комментарии к записи ST4 vs. ST4s — — The Ultimate Ducati Forum отключены
Ducati ST4 S

Originally Posted by PSsssp

considering adding an ST to the stable, an ST4 which is the last year of the 916 The one I’m looking at is about an away and has been maintained by my dealer who I like and trust. curious to hear from who have ridden both the 916 as well as the 996 version what, if the real-world difference are between the two

The bike I’m looking at is close to stock (DD headlight and a of other small upgrades), one just had the full 12k service and is clean.

I’d consider waiting for an but as I like to tinker with my (example one is my far-from-stock 900ss/sp) I I’d probably want to things anyway. The buy-in difference between an ST4 and an ST4s in condition (and probably not in which is the color I really would be spent on upgrades wheels and suspension, netting me a very similar in spec to an in every way except the powerplant. with this particular I wouldn’t need to pop for a major for some time.

Also, two questions: did Ducati use the same rockers in the ST motors as in the SBK motors? was the ST4s ever offered in

I’ve ridden four and one ST4 which was expertly tuned the cam timing dialed in, performance and chip. I’ve never a stock ST4 so I can’t make a comparison. I can compare the ST4 with dialed/pipes/chip to a ST4s with

The ST4s has more power the rev range, especially in the lower-mid rpm but the difference on top was not quite as much as I It’s there but for street the main difference is the extra of the 4s. Even so, the regular ST4 is not anemic in the department.

The 4s has a newer generation ECU which is not as to remap due to encryption but I think it a little finer granularity in of the injection mapping which explains the slight improvement in response and maybe even economy of the 4s.

Handling wise the 4s feels more nimble and probably due mostly to the lighter and Ohlins shock but I wouldn’t the contribution of the aluminum swingarm.

The 4 ST’s use the same rockers as the SBK but the cam profiles are different which may the failure rate. Personally, I the rocker problem is not such a big I’ve had three fail in miles with plenty of rpm thrashing and I’ve replaced with megacycle rockers. If I was on a I would just replace with OEM rockers which are now inexpensive.

Ducati ST4 S

I think the problem is not so much the rockers are poor quality but the surface of the cams are not very They are surface hardened a treatment called Parkerizing and leaves the surface a little I’ve never inquired if is a safe way to smooth the cam surface it’s so easy to replace a if it fails.

The St4s was never offered in the blue color 😉 From the ST4s was offered in Red, gloss grey and, my (the original 2002 color), matte grey is not a flat finish like the monsters and SBK’s, it has a satin that I think looks and rather stealthy at the same

Either bike can be turned a wolf in sheeps clothing but the displacement of the 4s is hard to argue


Mike Mullen

STealTH Ducati ST4s

Ducati ST4 S
Ducati ST4 S
Ducati ST4 S
Ducati ST4 S
Ducati ST4 S

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