Part Description
Replacement parts, Diaphragm spring for ZPN 712106, 712121, 712124, 712125, 712129, 712131 and 712139 TPP-VPC clutches, 150lbs
Text excerpt from the catalog:
When you feel that it takes to much from your hand to pull the clutch the Variable Pressure Clutch (VPC) is the ultimate solution. The VPC gives you reduced spring pressure at idle, but when revving up the bob weights use centrifugal force to put more pressure on the clutch than you could ever achieve with a High Performance clutch spring. It makes for easy clutch lever work from idle to 3,000 RPM, the area where most people need to pull their clutch to shift gear. Some Variable Pressure Clutch features: •Centrifugal force on the bob weights works like a Lock Up clutch •Reduces required clutch lever force up to 60% at idle on stock engines •Improved clutch engagement when revving up •Better clutch disengagement and feel •Easier to find neutral •Clutch pull becomes heavier when RPM increases •Sportster kits fit 1991-1993 XL with a 1994-2003 primary cover, derby cover and clutch release mechanism •Sportster 1200 kits fit 1994-2002 Buell S1, S2, S3 and X1 models •You can install a stronger diaphragm spring when your performance needs grow
