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51.75€
Available Sold and shipped by: RESILIENZA LUXEMBOURG SÀRL-S
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torsion controller variator spring guide

Code: 2514227

Model: yamaha t max 500 ie 4t lc 2008->2011

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Description

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.

Compatible brands and models

Brand Model
KYMCO KYMCO AK 550 ie 4T LC euro 4 2017->2020 (SAA1)
KYMCO KYMCO AK 550 ie 4T LC euro 5 2021-> (SBA1)
KYMCO KYMCO AK Premium 550 ie 4T LC euro 5 2023-> (SBA1B)
YAMAHA YAMAHA T MAX 500 ie 4T LC 2004->2007
YAMAHA YAMAHA T MAX 500 ie 4T LC 2008->2011
YAMAHA YAMAHA T MAX 530 ie 4T LC 2012->2014 (J409E)
YAMAHA YAMAHA T MAX 530 ie 4T LC 2015->2016 (J409E)
YAMAHA YAMAHA T MAX 530 ie 4T LC euro 4 2017-> (J415E)
YAMAHA YAMAHA T MAX 560 ie 4T LC euro 5 2020->2021 (J420E)
YAMAHA YAMAHA T MAX 560 ie 4T LC euro 5 2022->
YAMAHA YAMAHA T MAX (carb.) 500 4T LC 2001->2003
YAMAHA YAMAHA T MAX DX 530 ie 4T LC euro 4 2017-> (J415E)
YAMAHA YAMAHA T MAX SX 530 ie 4T LC euro 4 2017-> (J415E)
YAMAHA YAMAHA T MAX Tech MAX 560 ie 4T LC euro 5 2020->2021 (J420E)
YAMAHA YAMAHA T MAX Tech MAX 560 ie 4T LC euro 5 2022->

Components and Spare Parts

Product name Code Price
spring guide spring guide 2514225b 7.00€ Cart

Applies to

Product name Code Price
over range for yamaha t max ie 2004 > 2011 500 cc 6114885 725.74€ Cart
over range mhr next complete transmission unit 6118154 614.73€ Cart
over range mhr next yamaha t max 530 cc 6118485 602.68€ Cart
over range for kymco ak 550 engines 6118612 620.36€ Cart

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torsion controller variator spring guide

51.75€
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