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1999 Ducati Supersport 900 |
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Posted by Peter Jones
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Sunday, 20 September 1998 |
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Page 2 of 2
The biggest news about the 900SS is the bike's redesigned chassis. Out front, the steering geometry has been changed from 25 degrees of rake to 24, and the trail has been shortened 3mm, to a new measurement of 100mm. That's about an eighth of an inch to us Yanks. What this means is that the bike is now less heavy in its steering but nowhere near the point of making the bike any less stable. The 900SS comes without a steering damper and it is a good bet that no one will ever bother installing one. Well, except maybe for the coolness factor.
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The upside down Showa fork diameter has been increased by 2mm to 43, making for less flex under braking and when clobbering sharp bumps. The beefier tubes also allow for a shorter wheel base due to the fact that less clearance is now needed between the forks and the front of the engine. Yes, forks do bend back under braking and at least one bike from another manufacturer had a problem with one of their bike's front tire wearing a hole in its radiator when ridden in race conditions.
The rear suspension has been altered to give the 900SS a longer negative stroke to help maintain rear tire contact with the ground under severe braking. Both ends of the bike are fully adjustable for compression and rebound damping, and for spring preload. Also at each end are lighter wheels that offer improved suspension response and lighter steering because of their lessened amount of unsprung weight.
The brakes on the 900SS have been updated to the type of system found on the 916 and ST bikes. They feature a different channeling of the hydraulic plumbing and improved lever ratio for a better feel together with stiffer mounts for less flexing of the system.
So, there you have what appears to be just a few minor improvements for the 900SS over its predecessor. It doesn't seem like much worth writing home about, does it? But it is. I was absolutely unprepared for how much better the new 900SS proved to be once I jumped on it for a ride. It's amazing how attention to a few details can completely alter the behavior of a motorcycle.
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Around town, the new 900SS is much friendlier than the old one because the bike's lightened steering makes it much easier to pilot it through the slow, 90-degree corners of intersections. Additionally, the efi. . . oh yeah, I mean the ECU, is so dead-on in its management of the ignition and injection system that there is absolutely no stumbling at low rpms. The 900SS is the only twin I've ever ridden that can motor away from idle without a chug, a clunk, or a lash of the drive line. Off the line at a stop, the 900SS has the expected lowdown torque of a big twin but it also has the smoothness that's usually found only on an inline four. At 1,300 rpms this bike just goes with nary a complaint. Did I just use the word nary?
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The 900SS is also a very comfortable machine for a full-out sportbike. The rider fits down into it sort of like on the latest versions of the Suzuki GSX-R, and the really neat padding on the back of the tank offers great insulation from a hard part that I guess most of us had taken for granted as something we'd just have to live with. And like all Ducatis, the 900SS is real narrow at the rear of the tank allowing the rider to hold his legs in tight, as if on a bicycle. I've always liked that.
I rode the 900SS on the track at Pocono and found it to be just as stable as Ducati had promised. And that's without a steering damper. Although the track has been repaved, the blacktoppers were careful to follow the contour of the old bumps so as not to lose any of their shape. The result is that the track is pretty much the same as it's always been -- just newer. But the 900SS handled the transitions on and off the tri-oval with great confidence, allowing me to keep the throttle twisted on as I accelerated in full lean onto the front straight. Ground clearance with the 900SS was not a problem either. Most of the rest of the bumps on the track only work the slow speed of the damping because those bumps are primarily just mild undulations. The 900SS handled those simply as a matter of course.
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In the real tight hairpin in the second infield section of the Pocono track, the 900SS felt a little longer and heavier steering than the ZX-6R I also rode that day, but it was still much lighter than any other Ducati, save the Monster. And too, the 900SS allowed for enough cornering speed in that tight turn to remove any fears of toppling over for lack of motion. Slow turns can be more difficult than fast ones because at a low speed and a deep lean angle you often don't have time to save a bike from falling over if things go wrong.
The 900SS's brakes were spot-on and its chassis took care of the bumps and braking loads without a complaint or hint of instability. In fact, I doubt you could ever get the 900SS to scare you with a shake or a shimmy. Like most Ducatis, I'm guessing that the distance between the steering head and the swingarm mount on the 900SS is longer than on any of the sportbikes from Japan. We'll look into this and start reporting measurements like that soon.
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The last time I rode an old version of the 900SS was at a Metzeler tire intro in Italy last winter. That bike requited itself well but it also seemed to have lost a bit of its spunk and character over the years. This new 900SS has got it all back. It is a Ducati from its sexy looks, to its Desmo engine, to its lattice frame. The new 900SS is a testament to the art of refining detail in order to redefine a bike's capabilities. I'm absolutely astounded by what a nice bike the new 900SS really is. And that's without excuse or qualification. Well, except I like it in yellow best.
Peter Jones
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| Ducati Supersport 900 |
| MSRP |
$10,995 |
| Dealer incentives |
Nope |
| Warranty |
2 years, unlimited miles |
| Engine |
| Type |
Liquid-cooled, 90 degree, four-stroke V-twin |
| Displacement |
904 cc |
| Bore & stroke |
92 x 68 mm |
| Compression ratio |
9.2:1 |
| Valve arrangement |
SOHC, two valves per cylinder, Desmodromic control |
| Max rpm |
9,000 rpm |
| Carburetion |
Weber-Marelli efi, one injector per cylinder |
| Transmission |
6-speed |
| Chassis |
| Weight |
414 lbs. (188 kg), dry |
| Frame |
Tubular chrome moly steel trestle |
| Front suspension |
Showa inverted 43 mm diameter forks with adjustments for spring preload, compression and rebound damping, Front wheel travel: 4.5 inches (115 mm) |
| Rear suspension |
Swingarm with progressive linkage, Showa mono-shock, adjustments for spring preload, compression and rebound damping, 5.35 inches (136 mm) |
| Front brake |
Dual, 4 piston Brembo calipers with 320 mm floating rotors |
| Rear brake |
Single 2 piston caliper with 245 mm fixed rotor |
| Front wheel |
3.50 x 17 inches, 3 spoke cast aluminum |
| Rear wheel |
5.50 x 17 inches, 3 spoke cast aluminum |
| Front tire |
120/70 |
| Rear tire |
170/60 |
| Rake |
24.0 degrees |
| Trail |
3.9 inches (100 mm) |
| Swingarm length |
NA |
| Steering stem to swingarm pivot |
NA |
| Wheelbase |
54.9 inches (1,395 mm) |
| Fuel capacity |
4.5 gals. (17 liters) |
| Accommodations |
| Seat height |
32.3 inches (820 mm) |
| Handlebar height |
34.3 inches (870 mm) |
| Steering stem to seat |
NA |
| Pegs to seat |
16.9 inches (429.26 mm) |
| Instruments |
Analog speedometer and tachometer, odometer, trip odometer, oil temperature gauge, lights for high beam, blinkers, neutral, alternator, |
| Seating |
Two |
| Stowage |
Small storage area located in tail section, accessed by removing keyed seat |
| Tool Kit |
Located in tail section |
| Miscellaneous |
| Recommend service |
6,000 miles, check belt tension, check valve clearance |
| Colors |
Yellow with black, Red with black |
| Performance |
| Fuel consumption |
43mpg |
| 1/4 mile |
NA |
| Top Speed |
NA |
| Roll-on 50-80 mph |
NA |
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