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TORSION CONTROLLER FOR ENG. 125 >250 CC PIAGGIO
 Attention: sometimes the pictures might be different from the product which they refer to, as concerns some details |
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| 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 We approved the project with great success after strict tests at R & D department and on racetrack on all examined scooter models. | |||||||||||||
APRILIA
- ATLANTIC - ARRECIFE 125 4t LC
- ATLANTIC - ARRECIFE 250 4t LC (PIAGGIO M237M)
- ATLANTIC 200 4t LC (PIAGGIO M234M)
- MOJITO 125 RY 4t (LEADER)
- SCARABEO ( BA03) euro 3 - 125 4t LC
- SCARABEO ( CA03) euro 3 - 200 4t LC
- SCARABEO 125 4t LC (PIAGGIO)
- SCARABEO 250 4t LC (PIAGGIO M285M)
- SCARABEO 250 4t LC ie Light 2007 -->
- SPORTCITY (PIAGGIO M281M) 125 4t LC
- SPORTCITY (PIAGGIO M288M) euro 3 - 200 4t LC
- SPORTCITY (PIAGGIO M288M) ie euro 3 - 250 4t LC
- SPORTCITY CUBE (LEADER M28LM) ie euro 3 - 300 4t LC
- SPORTCITY ONE (LEADER M38AM) 125 4t
- SR 125 2t
- SR 150 2t
BENELLI
- ADIVA (LEADER) 125 4t
- ADIVA (LEADER) 150 4t
- ADIVA AD 250 4t LC euro 2
DERBI
- BOULEVARD (LEADER) 125 4t
- BOULEVARD (LEADER) 150 4t
- BOULEVARD 200 4t (PIAGGIO M387M)
- GP1 125 4t LC euro 2-3
- GP1 250 4t LC euro 2-3
- RAMBLA (PIAGGIO M287M) euro 3 - 125 4t LC
- RAMBLA euro 3 - 250 4t LC
GILERA
- DNA 125 4t LC
- DNA 180 4t LC
- NEXUS 125 4t LC euro 3
- NEXUS 250 4t LC i.e. euro 3
- RUNNER 125 2t LC FX
- RUNNER 125 4t LC VX <-- 2005
- RUNNER 125 4t LC VX 2006 -->
- RUNNER 180 2t LC FXR
- RUNNER 180 4t LC VXR
- RUNNER 200 4t LC VXR <-- 2005
- RUNNER 200 4t LC VXR 2006 -->
- TYPHOON 125 2t
- TYPHOON X 125 2t
ITALJET
- DRAGSTER 125 2t LC
- DRAGSTER 180 2t LC
- JET SET (LEADER) 125 4t
- JET SET (LEADER) 150 4t
- TORPEDO (LEADER) 125 4t
- TORPEDO (LEADER) 150 4t
MALAGUTI
- MADISON (PIAGGIO) 180 4t LC
- MADISON (PIAGGIO) 200 4t LC
- MADISON 250 4t LC RS (PIAGGIO M237M)
- MADISON 3 (PIAGGIO) 125 4t LC
- MADISON 3 (PIAGGIO) 250 4t LC
- PHANTOM MAX 200 4t LC (PIAGGIO)
- PHANTOM MAX 250 4t LC (PIAGGIO M361M)
PEUGEOT
- GEOPOLIS 250 4t LC ie euro 3
- SATELIS 250 4t LC euro 3
PIAGGIO
- BEVERLY (M285M) euro 1-2 - 250 4t LC
- BEVERLY 125 4t LC
- BEVERLY 200 4t LC
- BEVERLY CRUISER i.e. euro 3 - 250 4t LC
- BEVERLY S 250 4t LC ie euro 3
- CARNABY 125 4t LC (LEADER M28FM) euro 3
- CARNABY 200 4t LC (LEADER M601M) euro 3
- FLY (LEADER M422M) euro 2-3 - 125 4t
- FLY (LEADER M422M) euro 2-3 - 150 4t
- HEXAGON 125 2t LC
- HEXAGON 125 2t LC LX
- HEXAGON 150 2t LC
- HEXAGON 180 2t LC LXT
- LIBERTY - LIBERTY LE (LEADER) euro 1-2 - 125 4t
- LIBERTY - LIBERTY LE (LEADER) euro 1-2 - 150 4t
- LIBERTY - LIBERTY S (LEADER) euro 3 - 200 4t
- LIBERTY S (LEADER M381M) euro 3 - 125 4t
- MP3 (LEADER) euro 3 - 125 4t LC
- MP3 (QUASAR M472M) i.e. euro 3 - 250 4t LC
- SKIPPER 125 2t
- SKIPPER 125 2t LX
- SKIPPER 150 2t
- SKIPPER 150 2t LXT
- SKIPPER ST (LEADER) 125 4t
- SKIPPER ST (LEADER) 150 4t
- SUPER HEXAGON 125 4t LC GTX
- SUPER HEXAGON 180 4t LC GTX
- VESPA ET4 (LEADER) 125 4t
- VESPA ET4 (LEADER) 150 4t
- VESPA Granturismo 125 4t LC L (LEADER)
- VESPA Granturismo 200 4t LC L (M312M)
- VESPA GTS 250 4t LC i.e.
- VESPA GTS Super (QUASAR M454M) i.e. euro 3 - 300 4t LC
- VESPA LX (LEADER) 125 4t
- VESPA LX (LEADER) 150 4t
- VESPA S (LEADER M444M) euro 3 - 125 4t
- VESPA S (LEADER) euro 3- 150 4t
- X7 (LEADER) euro 3 - 125 4t LC
- X7 (QUASAR M622M) i.e. euro 3 - 250 4t LC
- X8 (LEADER) euro 2-3 -125 4t LC
- X8 (QUASAR) i.e. euro 3 - 250 4t LC
- X8 200 4t LC
- X8 250 4t LC euro 2
- X9 125 4t LC
- X9 180 4t LC AMALFI
- X9 200 4t LC
- X9 250 4t LC Evolution (M237M)
- XEvo (LEADER) euro 3 -125 4t LC
- XEvo (QUASAR) i.e. euro 3 - 250 4t LC
- ZIP 125 4t (LEADER)
RENAULT
- FULLTIME 125 4t (LEADER)
