BDL Pro Clutch Plate Kit With Spring For Harley Big Twin Features BDL is now offering complete replacement clutch plate kits for the Rivera Primo Pro Clutch and their belt drive units. BDL has 13 different replacement clutch kits to match the specific model of Pro Clutch and you bike These are an replacement clutch plate kit with pre-measured stack height for easy installation, complete with all new friction and steel plates, as well as a new diaphragm clutch spring. All parts are proudly made in the Usa. Fits Pro Clutch equiped 1998-2006 Big Twin motorcycles only