STM Slipper Clutch
The slipper clutch that started it all! STM Slipper Clutches are beautifully
fabricated in anodized aluminum alloy and titanium. Selected for use by Ducati's World
Superbike team, still the best choice for higher horsepower machines.
These are the EXACT Same STM Clutches that are used by Ben Bostrom, Noriuki Haga,
Franki Chilli, and
Many other Top Road Racers World Wide.
ALL STM Clutch is made IN HOUSE at the Italy Shop, with the highest tollerance and
quality control. Each part is stamped with a Part number, and Serial number to keep quality control
and records of all part made.This insures what you receive is only the best, everytime.
STM Slipper Clutches are Now
available for most Modern Sport Bikes.
HOW STM Slipper Clutch Work:
After years of experience and satisfaction in the production of competition engines
components, STM Slipper Clutches uses the same technology, which has been already used on
dry clutches, on wet clutches, too. Result: performances get better, components
lubrication increases the efficacy of the system. This system, working with steel balls
and ramps, helps the pilot while turning avoiding the rear wheel to slip during an hard
braking. Also if you use it on every day roads, there are some advantages: it avoids
dangerous skiddings, it increases safety and protects the internal parts of the engine. It
avoids extra strokes, and reduces tyre wear of the rear wheel.
All components come from STM Slipper Clutch, is made with the most sophisticated
machines.
For the production STM Slipper Clutches selects the best aeronautic alloys and the best
suppliers for surface treatments. Drum and hub are realized in Ergal 7075 and oxidized to
last long.
Also the pusher plate is in 7075, but it has a steel ring which gives a stiff support to
the Diaphragm Evoluzione spring . This spring is the real heart: it is possible to chose
between different kind of hardness and adapt the clutch to pilot's needs. Pusher plate
kit, with the function of checking plates opening is completed by a brassbearing rest
holder and a pusher spring hub in steel and nitride coating. This treatment helps steel
components to last longer, increasing surface hardness. STM Slipper Clutches kit assembly uses original Friction
Plates, Drive Plates and basket.
Going faster in the corners is not just about HP, it's about smoothness and
Traction.
It's about the riders ability to load up the tires to their limit of grip and keeping them
there, just before the point they let go.
The Rider can fine tune his suspension and chassis set up to help this
situation be predictable and accurate. What you do not want is the rear tire locking
up in a high speed corner or coming into a slow, hard braking corner. The fastest way
through a corner is smooth progressive deceleration and acceleration to prevent any wheel
hop.
Another side effect late braking, is the chance of
pushing the engine through its redline and damaging the motor. The rev limiter only works
by cutting the throttle. It doesn't work if the rear wheel is
turning the motor over at a faster speed.
That is why many newer model bikes are coming standard with "Slipper
Clutches".
The point at which, the clutch releases and the level of drag designed into the
clutch is setup to make a real difference to the way the engine braking affects handling
and the suspension set-up required as a result.
You can read interviews with racers developing a new racebike, quoted as saying that
"The initial set-up depends on the correct adjustment of the slipper clutch, this is
most important".
STM can be found on 2006 AMA Factory
Yamaha's
As well as a majority of World Superbike, and Moto GP Teams
STM Slipper Clutches Price List
PART #
PRODUCT DESCRIPTION
SALE PRICE
242-1022
DUCATI EVOLUTION SLIPPER CLUTCH KIT
45D/48T DRY CLUTCH '88-'05 Requires Disc. Set Sold
Separately242-2025 or 2026
$1,699.95
$1377IN STOCK
242-1023
DUCATI EVOLUTION SLIPPER CLUTCH KIT
35D/48T DRY CLUTCH '88-'05 Requires Disc. Set Sold
Separately242-2025 or 2026
$1,699.95
$1377IN STOCK
242-1030
DUCATI EVOLUTION ALLOY CLUTCH GRP
12T DRY CLUTCH '88-'05 Requires Disc. Set Sold
Separately
$1,199.95
$959
242-1031
DUCATI EVOLUTION ALLOY CLUTCH GRP
48T DRY CLUTCH '88-'05 Requires Disc. Set Sold
Separately
