71.

Engine Parts
Model: APE50 L/C
Original Size: 42x35.6 (49cc)

Big bore Size: 53.5x35.6 (80cc)

72.

Engine Parts
Model: TODAY50
Original Size: 39x41.4 (49cc)

Big bore Size: 47x41.4 (71.8cc)

73.

Engine Parts
Model: NH50
Original Size: 40x39.3 (49cc)

Big bore Size: 46x39.3 (65.3cc)

74.

Engine Parts
Model: FILLY 50
Original Size: 39x41.4 (49cc)

Big bore Size: 47x41.4 (71.8cc)

75.

Engine Parts
Model: KIWI70
Original Size: 47x41.4 (71.8cc)

Big bore Size: 51.5x41.4 (86.2cc)

76.

Engine Parts
Model: ZING150
Original Size: 62x49.5 (149cc)

Big bore Size: 65x49.5 (164.2cc)

77.

Engine Parts
Model: KIWI100
Original Size: 50x51.8 (101.7cc)

Big bore Size: 55x51.8 (123cc)

78.

Engine Parts
Model: P103
Original Size: 40x39.2 (49cc)

Big bore Size: 46x39.2 (65cc)

79.

Engine Parts
Model: SV80
Original Size: 48x44 (79.6cc)

Big bore Size: 54x44 (100.7cc)

80.

Engine Parts
Model: LUDIX50
Original Size: 40x39.2 (49cc)

Big bore Size: 47x39.2 (68cc)