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The cosa clutch springs are available in different spring rates in order to adapt the clutch to the respective purpose of use. 


These are genuine standard Piaggio springs and will cope with most clutches apart from the highest of tuned engines. 


Clutch spring technical specs: 

Wire size: 1mm

Number of coils: 9

Spring pressure rate: 4.0N/mm

Vespa - Clutch springs - Standard cosa, set of 8 - Genuine Piaggio

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