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Joint reseach with the Suzuka National College of Technology

Heat-Magic is located in Suzuka,the home of the Japanese race industry(and such industrial giants as Honda motors and Keihin to name a few)Also located in Suzuka is the Suzuka National College of Technology.Over the years the institute has lent its talents to the design and development of many innovations in the Japanese motor industry.

Heat-Magic worked in conjunction with the institiute to develop the most advanced racing swingarm available.

Development began with the stock Suzuki swingarm,performing torsion and stress analysis and dynamic simulation by numeric analysis(3-dimensional finite element method)The stock Suzuki swingarm is well designed,but has shortcomings for professional race use(mainly strength and stiffness shortcomings,as well as geometry,the Heat-Magic swingarm is 50mm longer than the stock swingarm and has a billeted suspension linkage mount,optimising the best placement for suspension stroke on a race bike.


Design of the new Heat-Magic swingarm used the data recording the limitations of the stock swingarm.CAD was used for the initial design,with specific simulation software and numerical analysis(FEA).For example the images below shows where force is applied when the stock swingarm is running at high corner speed,and the effects on the swingarm pivot and axle mounts/blocks and how that force is transferred to the body of the swingarm.

And below the CAD renderings shows Heat-Magics answer to that particular weakness issue, bracing on the swingarm axle area.

Another example of heat-Magics progressive and innovative design involves the top bracing.Here unique billeted square/round inner tubing is utilized,giving superb strength with minimal weight gain(just a few examples of the superior design and manufacturing techniques,showcased in this incredible racing swingarm)


The images below are the result of the above stress analysis using FEA simulation.

A 3 axis torsion test was conducted with mechanical stress jigs.First are the points where movement and stress were guaged.
The stock swingarm,mounted to the 3-axis torsion machine and sensors applied to specific areas(numeric analysis)
Below are the test values of the torsion stress testing.

Data from the simulation FEA tests and actual torsion testing showed limitations in the stock swingarm.Heat-Magic has been testing and improving their swingarm design for a number of years,tested extensively on the track,and undergoing many design changes and trial testing(alloy thickness,bracing,geometry,welds)

Unsprung weight is an important element in chassis design,the lighter the better for suspension dial-in,flickability and power to weight ratio,all being major elements in a bikes handling traits.

Heat-Magic have tested with swingarms as light as 5kg's,and in different structural thicknesses,and have found the best ratio of strength and rigidity in a racing swingarm with reference to minimal weight.

These swingarms are designed to transfer well over 200hp to the track's surface and need to be extremely strong to work with race tyres and aggressive riding techniques.Current Heat-Magic race spec swingarms weigh 6.8kg(1.3kg less than stock)and the full factory version complete with axle and caliper mount is 7.5kg





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