I bought a complete assembly from Draganfly.
First - the clutch is great. Very light and plenty of "feel". Well worth the money. Very easy to fit and adjust.
This assembly came ready to fit and is listed as part number BSA4SPR5


https://www.draganfly.co.uk/index.php/bsa/bsa/a710--b3133--c101112--m202133/category/910-4-spring-triumph-type-without-cush-drive

email (option): cas.vanderwoude@gmail.com