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Chainstretch
Chainstay Length
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Online (
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Display as chart
or tabulated text
Teeth on chainrings (front): largest:
and smallest:
Teeth on cogs (rear): largest:
and smallest:
Units below are centimeters
or inches
Chainstay length (in above units):
Tire diameter:
700x35
700x28
700x23
700x20
27x1.25
26x1.9
26(559mm)x1.0
26(650c)x1.0
24x1
20x1.75
Include
half-link
? Yes
No
Chain stretch
(in inches per 12 inches of chain):
Highlight area
:
Off
Vertical
Fixed. Inn.
Excentriker
Horizontal
Results
Ring
↓Cog
Stay Length
Halflinks
Gear inches
53
13
41.760
100
106.7
52
13
42.123
100
104.6
50
13
41.553
98
100.6
49
13
41.912
98
98.6
48
13
42.269
98
96.6
47
13
41.338
96
94.6
46
13
41.693
96
92.6
45
13
42.047
96
90.6
43
13
41.466
94
86.5
42
13
41.816
94
84.5
41
13
42.165
94
82.5
39
13
41.577
92
78.5
38
13
41.923
92
76.5
37
13
42.266
92
74.5
36
13
41.331
90
72.4
35
13
41.673
90
70.4
34
13
42.013
90
68.4
53
14
41.476
100
99.0
52
14
41.838
100
97.2
51
14
42.198
100
95.3
49
14
41.625
98
91.6
48
14
41.981
98
89.7
46
14
41.404
96
86.0
45
14
41.757
96
84.1
44
14
42.108
96
82.2
42
14
41.524
94
78.5
41
14
41.871
94
76.6
40
14
42.217
94
74.7
38
14
41.627
92
71.0
37
14
41.970
92
69.1
35
14
41.375
90
65.4
34
14
41.714
90
63.5
52
15
41.553
100
90.7
51
15
41.912
100
88.9
50
15
42.269
100
87.2
49
15
41.338
98
85.5
48
15
41.693
98
83.7
47
15
42.047
98
82.0
45
15
41.466
96
78.5
44
15
41.816
96
76.7
43
15
42.165
96
75.0
41
15
41.577
94
71.5
40
15
41.923
94
69.8
39
15
42.266
94
68.0
38
15
41.331
92
66.3
37
15
41.673
92
64.5
36
15
42.013
92
62.8
34
15
41.414
90
59.3
53
16
42.198
102
86.7
51
16
41.625
100
83.4
50
16
41.981
100
81.8
48
16
41.404
98
78.5
47
16
41.757
98
76.8
46
16
42.108
98
75.2
44
16
41.524
96
71.9
43
16
41.871
96
70.3
42
16
42.217
96
68.7
40
16
41.627
94
65.4
39
16
41.970
94
63.8
37
16
41.375
92
60.5
36
16
41.714
92
58.9
35
16
42.052
92
57.2
53
17
41.912
102
81.6
52
17
42.269
102
80.0
51
17
41.338
100
78.5
50
17
41.693
100
76.9
49
17
42.047
100
75.4
47
17
41.466
98
72.3
46
17
41.816
98
70.8
45
17
42.165
98
69.2
43
17
41.577
96
66.2
42
17
41.923
96
64.6
41
17
42.266
96
63.1
40
17
41.331
94
61.6
39
17
41.673
94
60.0
38
17
42.013
94
58.5
36
17
41.414
92
55.4
35
17
41.751
92
53.9
34
17
42.087
92
52.3
53
18
41.625
102
77.0
52
18
41.981
102
75.6
50
18
41.404
100
72.7
49
18
41.757
100
71.2
48
18
42.108
100
69.8
46
18
41.524
98
66.9
45
18
41.871
98
65.4
44
18
42.217
98
63.9
42
18
41.627
96
61.0
41
18
41.970
96
59.6
39
18
41.375
94
56.7
38
18
41.714
94
55.2
37
18
42.052
94
53.8
35
18
41.450
92
50.9
34
18
41.785
92
49.4
53
19
41.338
102
73.0
52
19
41.693
102
71.6
51
19
42.047
102
70.2
49
19
41.466
100
67.5
48
19
41.816
100
66.1
47
19
42.165
100
64.7
45
19
41.577
98
62.0
44
19
41.923
98
60.6
43
19
42.266
98
59.2
42
19
41.331
96
57.8
41
19
41.673
96
56.5
40
19
42.013
96
55.1
38
19
41.414
94
52.3
37
19
41.751
94
50.9
36
19
42.087
94
49.6
34
19
41.482
92
46.8
52
20
41.404
102
68.0
51
20
41.757
102
66.7
50
20
42.108
102
65.4
48
20
41.524
100
62.8
47
20
41.871
100
61.5
46
20
42.217
100
60.2
44
20
41.627
98
57.6
43
20
41.970
98
56.2
41
20
41.375
96
53.6
40
20
41.714
96
52.3
39
20
42.052
96
51.0
37
20
41.450
94
48.4
36
20
41.785
94
47.1
35
20
42.118
94
45.8
Copyright 1996-2024 by Eric House & Fixed Innovations
This site was completely rewritten around October 2020. If you notice problems they are probably new!
Please
let me know
if you find problems or have comments about this site.