These are dish shaped flat steel pressure rings and there are normally only one or two in a bikes engine. You should never add MORE springs on a diaphragm spring set up. If you do wish to upgrade the clamp load and your bike is fitted with a diaphragm spring clutch kit, buy a Goodridge Brakes spring kit, all of which are built with 10 -15% more clamp pressure than stock.
• This can again reduce clutch slip and premature clutch wear.
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