Chain Dia
mm

R
mm

A
mm

B
mm

C
mm

P
mm

Weight
kgs

7/8

50

10

9

10

9

0.27

10

72

13

13

14

13

0.75

13

88

17

17

17

16

1.35

16

102

20

21

20

21

2.3

20

117

24

24

24

24

4.1

22

139

26

26

26

26

5.65