We have had this 7" clutch on the drawing board for several years now pending testing of different clutch components. Now that testing is complete and we have designed this new clutch from what we have learned. We offer several different ratio's for both the primary fingers (4) and for the lock up fingers (8). We also offer the lock up fingers in different heights so that you can tune in your clutch to your combination. Clutch hat and pressure plate are CNC machined from Titanium and all components are manufactured in house here at HRP.