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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
52
17
42.269
102
80.0
50
15
42.269
100
87.2
48
13
42.269
98
96.6
43
19
42.266
98
59.2
41
17
42.266
96
63.1
39
15
42.266
94
68.0
37
13
42.266
92
74.5
46
20
42.217
100
60.2
44
18
42.217
98
63.9
42
16
42.217
96
68.7
40
14
42.217
94
74.7
53
16
42.198
102
86.7
51
14
42.198
100
95.3
47
19
42.165
100
64.7
45
17
42.165
98
69.2
43
15
42.165
96
75.0
41
13
42.165
94
82.5
52
13
42.123
100
104.6
35
20
42.118
94
45.8
50
20
42.108
102
65.4
48
18
42.108
100
69.8
46
16
42.108
98
75.2
44
14
42.108
96
82.2
36
19
42.087
94
49.6
34
17
42.087
92
52.3
39
20
42.052
96
51.0
37
18
42.052
94
53.8
35
16
42.052
92
57.2
51
19
42.047
102
70.2
49
17
42.047
100
75.4
47
15
42.047
98
82.0
45
13
42.047
96
90.6
40
19
42.013
96
55.1
38
17
42.013
94
58.5
36
15
42.013
92
62.8
34
13
42.013
90
68.4
52
18
41.981
102
75.6
50
16
41.981
100
81.8
48
14
41.981
98
89.7
43
20
41.970
98
56.2
41
18
41.970
96
59.6
39
16
41.970
94
63.8
37
14
41.970
92
69.1
44
19
41.923
98
60.6
42
17
41.923
96
64.6
40
15
41.923
94
69.8
38
13
41.923
92
76.5
53
17
41.912
102
81.6
51
15
41.912
100
88.9
49
13
41.912
98
98.6
47
20
41.871
100
61.5
45
18
41.871
98
65.4
43
16
41.871
96
70.3
41
14
41.871
94
76.6
52
14
41.838
100
97.2
48
19
41.816
100
66.1
46
17
41.816
98
70.8
44
15
41.816
96
76.7
42
13
41.816
94
84.5
36
20
41.785
94
47.1
34
18
41.785
92
49.4
53
13
41.760
100
106.7
51
20
41.757
102
66.7
49
18
41.757
100
71.2
47
16
41.757
98
76.8
45
14
41.757
96
84.1
37
19
41.751
94
50.9
35
17
41.751
92
53.9
40
20
41.714
96
52.3
38
18
41.714
94
55.2
36
16
41.714
92
58.9
34
14
41.714
90
63.5
52
19
41.693
102
71.6
50
17
41.693
100
76.9
48
15
41.693
98
83.7
46
13
41.693
96
92.6
41
19
41.673
96
56.5
39
17
41.673
94
60.0
37
15
41.673
92
64.5
35
13
41.673
90
70.4
44
20
41.627
98
57.6
42
18
41.627
96
61.0
40
16
41.627
94
65.4
38
14
41.627
92
71.0
53
18
41.625
102
77.0
51
16
41.625
100
83.4
49
14
41.625
98
91.6
45
19
41.577
98
62.0
43
17
41.577
96
66.2
41
15
41.577
94
71.5
39
13
41.577
92
78.5
52
15
41.553
100
90.7
50
13
41.553
98
100.6
48
20
41.524
100
62.8
46
18
41.524
98
66.9
44
16
41.524
96
71.9
42
14
41.524
94
78.5
34
19
41.482
92
46.8
53
14
41.476
100
99.0
49
19
41.466
100
67.5
47
17
41.466
98
72.3
45
15
41.466
96
78.5
43
13
41.466
94
86.5
37
20
41.450
94
48.4
35
18
41.450
92
50.9
38
19
41.414
94
52.3
36
17
41.414
92
55.4
34
15
41.414
90
59.3
52
20
41.404
102
68.0
50
18
41.404
100
72.7
48
16
41.404
98
78.5
46
14
41.404
96
86.0
41
20
41.375
96
53.6
39
18
41.375
94
56.7
37
16
41.375
92
60.5
35
14
41.375
90
65.4
53
19
41.338
102
73.0
51
17
41.338
100
78.5
49
15
41.338
98
85.5
47
13
41.338
96
94.6
42
19
41.331
96
57.8
40
17
41.331
94
61.6
38
15
41.331
92
66.3
36
13
41.331
90
72.4
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.