61.

Engine Parts
Model: APRILIA SR2000
Original Size: 41x37.4 (50cc)

Big bore Size: 47x37.4 (64.8cc)

62.

Engine Parts
Model: SR50 L/C
Original Size: 40x39.2 (50cc)

Big bore Size: 47x39.2 (67.9cc)

63.

Engine Parts
Model: RS50
Original Size: 40.3x39.2 (50cc)

Big bore Size: 47x39.2 (67.9cc)

64.

Engine Parts
Model: SR50
Original Size: 40x39.2 (50cc)

Big bore Size: 47x39.2 (67.9cc)

65.

Engine Parts
Model: DERBI SENDA LC
Original Size: 39.88x40 (49.9cc)

Big bore Size: 47x40 (69.3cc)

66.

Engine Parts
Model: DERBI SENDA LC(NEW)
Original Size: 39.88x40 (49.9cc)

Big bore Size: 47x40 (69.3cc)

67.

Engine Parts
Model: KAWASAKI AR50
Original Size: 39x41.4 (50cc)

Big bore Size: 53x41.4 (91.3cc)

68.

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

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

69.

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

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

70.

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

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