This EBC Clutch Spring Set is designed to fit model years Honda VFR 400 R NC30 1989 1990 1991 1992. SubModel: R NC30. Model: VFR 400 R NC30. Model: VFR 400. EBC CSK Coil & Diaphragm. Complete engine sets of heat treated and tempered steel coil springs or diaphragm springs giving 10-15% more clamp pressure than standard.