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Triumph clutch compatibility

2K views 10 replies 5 participants last post by  Black Market 
3-spring cush-drive and pressure plate fit.That's no problem,and it allows you to use 6 friction plates.A new 3-spring cush-drive to suit a T140 is a good investment.They do wear,and you get runout and imbalance.

Everyone says you can't fit duplex sprockets and chain on a pre-unit.I've fitted duplex to a rigid pre-unit with D.C.generator. It just fitted,not a lot of clearance.It may not fit if you have an alternator.
 
If using duplex chain isn't a problem,you can use a complete T140 clutch with triplex sprocket.The duplex chain will just run on the inner 2 rows of teeth.You could cut off the outer row,or just leave them.
It can be easier to find T140 parts in good condition.Apart from the extra row of teeth,the clutch basket is the same as duplex.
 
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