how to adjust zip line speed

4:23

2:28

8:56

11:21

13:35

00:38

13:32

10:09

3:05

1:14

12:04

2:56

5:02

5:35

5:24

1:42

5:33

4:09

2:55

5:30

1:10

8:16

6:34

4:48

00:58

5:00

5:28

4:46

1:11

4:08

3:38

6:59

1:03

3:14

13:27

2:26

10:52

3:54

1:00

1:05

7:52

4:26

2:40

5:49

4:18

1:04

6:44

3:16

00:23

2:25

1:19

6:47

8:08

14:32

16:11

00:24

23:36

6:37

00:34

2:50