Malossi Torsion Controller for Kymco 250 and 300

Malossi Torsion Controller for Kymco 250, 300 and 350cc Scooters

This ring goes on the large clutch spring and allows more of the engine's torque to get to the back wheel. It has been proven in racing applications throughout Europe. This smooths out the ride, and eliminates a lot of the high speed vibration that occurs in the clutch. This will usually solve your clutch judder problem. 

TORSION CONTROLLER
Antifriction fifth wheel for variator contrast spring
A secret from Malossi racing department
Light, perfect: a technology extract in its simplicity; design and formula of the materials are registered.
Abstract from of Malossi Engineering R& D department archives
CVT Transmission systems.
Chapter : contrast spring.
Goal: Pull down vibrations and to make the system operation stable at any rpm and temperature.
Design path: We have considered both on theoretical and practical basis all the existing fifth wheel systems: balls, rollers and radial sliding fifth wheels of metal type. All the tests gave unsatisfactory results. We have made prototypes with alternative systems, metallic type, without any positive results. Only after exhausting laboratory and racetrack tests we have eventually come to Torsion Controller design.
Thesis : The above-mentioned component solves the following problems.
During gear curve range the bushing of the movable pulley (torque drive) slides into the driven pulley in axial way along fixed pulley hub, making a small rotation which gives a torsion to the contrast spring. Sometimes the spring loses its position while frictioning on the shoe-holder plate, metal against metal; some others, the spring remains stuck in its position causing some accidentally different contrast forces.
Second problem: centrifugal forces caused at high rpm affect the spring which consequently buckled and starts to veer as to create big vibrations, very annoying for the driver as well as dangerous for the engine and, above all, making unsteady the gear curve.
Result : Great success after strict tests at Malossi's R & D department and on racetracks on all examined scooter models.
Fits
KAWASAKI J 300 ie 4T LC euro 3 (WS60)
KAWASAKI J 300 ie 4T LC euro 4 2018-> (WS60B)
KYMCO BET & WIN 250 4T LC
KYMCO DINK Street 300 ie 4T LC euro 3 (SK60)
KYMCO DINK Street 300 ie 4T LC euro 3 2012-> (SK60A)
KYMCO DOWNTOWN 300 ie 4T LC euro 3 (SK60)
KYMCO DOWNTOWN 300 ie 4T LC euro 3 2012-> (SK60A)
KYMCO DOWNTOWN i ABS 350 ie 4T LC euro 3 (SK64)
KYMCO GRAND VISTA 250 4T LC
KYMCO GRAND DINK 300 ie 4T LC euro 4 2017-> (KS60A)
KYMCO K-XCT 300 ie 4T LC euro 3 (SK60B)
KYMCO PEOPLE - PEOPLE S 250 4T LC euro 2
KYMCO PEOPLE - PEOPLE S 250 ie 4T LC euro 3
KYMCO PEOPLE GTi 300 ie 4T LC euro 3 <-2018 (BF60)
KYMCO PEOPLE GTi 300 ie 4T LC euro 4 2019-> (BF60B)
KYMCO PEOPLE S 300 ie 4T LC euro 4 2019-> (BF60C)
KYMCO SUPER DINK 300 ie 4T LC euro 3 (SK60)
KYMCO SUPER DINK 300 ie 4T LC euro 3 2012-> (SK60A)
KYMCO SUPER DINK 350 ie 4T LC euro 4 abs 2017-> (SK64G)
KYMCO XCITING - XCITING R 300 ie 4T LC euro 3
KYMCO XCITING 250 4T LC euro 2
KYMCO X-Town 300 ie 4T LC euro 4 (KS60A)
KYMCO YUP 250 4T LC (SH 50 D)
KYMCO DOWNTOWN i ABS 350 ie 4T LC euro 4 2016-> (SK64G)
QUADRO QUADRO3 350 ie 4T LC euro 3 2016 (T69N)
  • Model: 100-2517018.KY

$9.97