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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
34
20
42.451
94
44.5
35
20
42.118
94
45.8
36
20
41.785
94
47.1
38
20
42.389
96
49.7
39
20
42.052
96
51.0
40
20
41.714
96
52.3
42
20
42.311
98
54.9
43
20
41.970
98
56.2
44
20
41.627
98
57.6
46
20
42.217
100
60.2
47
20
41.871
100
61.5
48
20
41.524
100
62.8
49
20
42.457
102
64.1
50
20
42.108
102
65.4
51
20
41.757
102
66.7
53
20
42.336
104
69.3
35
19
42.422
94
48.2
36
19
42.087
94
49.6
37
19
41.751
94
50.9
39
19
42.352
96
53.7
40
19
42.013
96
55.1
41
19
41.673
96
56.5
43
19
42.266
98
59.2
44
19
41.923
98
60.6
45
19
41.577
98
62.0
47
19
42.165
100
64.7
48
19
41.816
100
66.1
50
19
42.399
102
68.8
51
19
42.047
102
70.2
52
19
41.693
102
71.6
34
18
41.785
92
49.4
36
18
42.389
94
52.3
37
18
42.052
94
53.8
38
18
41.714
94
55.2
40
18
42.311
96
58.1
41
18
41.970
96
59.6
42
18
41.627
96
61.0
44
18
42.217
98
63.9
45
18
41.871
98
65.4
46
18
41.524
98
66.9
47
18
42.457
100
68.3
48
18
42.108
100
69.8
49
18
41.757
100
71.2
51
18
42.336
102
74.1
52
18
41.981
102
75.6
53
18
41.625
102
77.0
34
17
42.087
92
52.3
35
17
41.751
92
53.9
37
17
42.352
94
56.9
38
17
42.013
94
58.5
39
17
41.673
94
60.0
41
17
42.266
96
63.1
42
17
41.923
96
64.6
43
17
41.577
96
66.2
45
17
42.165
98
69.2
46
17
41.816
98
70.8
48
17
42.399
100
73.9
49
17
42.047
100
75.4
50
17
41.693
100
76.9
52
17
42.269
102
80.0
53
17
41.912
102
81.6
34
16
42.389
92
55.6
35
16
42.052
92
57.2
36
16
41.714
92
58.9
38
16
42.311
94
62.1
39
16
41.970
94
63.8
40
16
41.627
94
65.4
42
16
42.217
96
68.7
43
16
41.871
96
70.3
44
16
41.524
96
71.9
45
16
42.457
98
73.6
46
16
42.108
98
75.2
47
16
41.757
98
76.8
49
16
42.336
100
80.1
50
16
41.981
100
81.8
51
16
41.625
100
83.4
53
16
42.198
102
86.7
35
15
42.352
92
61.0
36
15
42.013
92
62.8
37
15
41.673
92
64.5
39
15
42.266
94
68.0
40
15
41.923
94
69.8
41
15
41.577
94
71.5
43
15
42.165
96
75.0
44
15
41.816
96
76.7
46
15
42.399
98
80.2
47
15
42.047
98
82.0
48
15
41.693
98
83.7
50
15
42.269
100
87.2
51
15
41.912
100
88.9
52
15
41.553
100
90.7
53
15
42.484
102
92.4
34
14
41.714
90
63.5
36
14
42.311
92
67.3
37
14
41.970
92
69.1
38
14
41.627
92
71.0
40
14
42.217
94
74.7
41
14
41.871
94
76.6
42
14
41.524
94
78.5
43
14
42.457
96
80.3
44
14
42.108
96
82.2
45
14
41.757
96
84.1
47
14
42.336
98
87.8
48
14
41.981
98
89.7
49
14
41.625
98
91.6
51
14
42.198
100
95.3
52
14
41.838
100
97.2
34
13
42.013
90
68.4
35
13
41.673
90
70.4
37
13
42.266
92
74.5
38
13
41.923
92
76.5
39
13
41.577
92
78.5
41
13
42.165
94
82.5
42
13
41.816
94
84.5
44
13
42.399
96
88.5
45
13
42.047
96
90.6
46
13
41.693
96
92.6
48
13
42.269
98
96.6
49
13
41.912
98
98.6
50
13
41.553
98
100.6
51
13
42.484
100
102.6
52
13
42.123
100
104.6
53
13
41.760
100
106.7
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.