Supertech Dual valve spring kit Mini Cooper SPRK-EC3025D/MC W11b16

Dual valve spring kit 31,75kg/34,20mm SPR-3027D / MC + RET-EC3020 / T1 + SEAT-MC1015D + OEM + KPR-6S / 7 (32)

Make: MINI
Fits: MINI COOPER 2002-2007 1.6lt
Outer spring external diameter: 26,60mm
Outer spring internal diameter: 19,60mm
Inner spring external diameter: 19,40mm
Inner spring internal diameter: 14,20mm
Pressure Valve seat : 31,75kg/34,2mm
Pressure seat : 97,52kg/11mm
Max. lift: 14,10mm
Coil bind (under stress): 20,70mm
Rate in lbs./mm: 12,80
Retainer: RET-EC3020T1 +
Seat locator: SEAT-MC1015D + OEM +
Shims: KPR-6S/7