TOP PERFORMANCE Cilinder kit Big Bore – Gietijzer – Blauw

Contents:

1 Cylinder in special “MINACROM” cast iron (with chrome additive)

1 Piston with high silicon content and tin insert

1 Piston ring, 1 mm thick, in chromed semi trapezoidal S10

1 Piston gudgeon pin with biconic drilling

2 Gudgeon pin circlips

1 Head in aluminium with truncated cone-shaped combustion chamber

1 Cylinder base gasket

4 O-ring Ø 6.35 x 1.78

1 O-ring Ø 51.50 x 1.78

1 O-ring Ø 98.05 x 1.78

1 Water hose union

2 M5 x 14 screw securing union to head

1 O-ring Ø 22.22 x 2.62

2 M6 x 20 muffl er stud bolt

1 Clamp Ø 16 x 25

1 Clamp Ø 12 x 22

• Bore: 47.6 mm
• Stroke: 39.3 mm
• Displacement: 69.9 cc.
• Squish: 0.8±0.1 mm
• Timing diagram: exhaust: 193° transfer ports: 130°
• Compression ratio: geometric: 14.7:1 actual: 7.94:1