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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
51
13
41.192
98
102.6
50
13
41.553
98
100.6
49
13
41.912
98
98.6
47
13
41.338
96
94.6
46
13
41.693
96
92.6
45
13
42.047
96
90.6
44
13
41.114
94
88.5
43
13
41.466
94
86.5
42
13
41.816
94
84.5
40
13
41.231
92
80.5
39
13
41.577
92
78.5
38
13
41.923
92
76.5
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
50
14
41.267
98
93.4
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
43
14
41.175
94
80.3
42
14
41.524
94
78.5
41
14
41.871
94
76.6
39
14
41.283
92
72.9
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
53
15
41.192
100
92.4
52
15
41.553
100
90.7
51
15
41.912
100
88.9
49
15
41.338
98
85.5
48
15
41.693
98
83.7
47
15
42.047
98
82.0
46
15
41.114
96
80.2
45
15
41.466
96
78.5
44
15
41.816
96
76.7
42
15
41.231
94
73.2
41
15
41.577
94
71.5
40
15
41.923
94
69.8
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
52
16
41.267
100
85.0
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
45
16
41.175
96
73.6
44
16
41.524
96
71.9
43
16
41.871
96
70.3
41
16
41.283
94
67.0
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
34
16
41.114
90
55.6
53
17
41.912
102
81.6
51
17
41.338
100
78.5
50
17
41.693
100
76.9
49
17
42.047
100
75.4
48
17
41.114
98
73.9
47
17
41.466
98
72.3
46
17
41.816
98
70.8
44
17
41.231
96
67.7
43
17
41.577
96
66.2
42
17
41.923
96
64.6
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
47
18
41.175
98
68.3
46
18
41.524
98
66.9
45
18
41.871
98
65.4
43
18
41.283
96
62.5
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
36
18
41.114
92
52.3
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
50
19
41.114
100
68.8
49
19
41.466
100
67.5
48
19
41.816
100
66.1
46
19
41.231
98
63.3
45
19
41.577
98
62.0
44
19
41.923
98
60.6
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
35
19
41.148
92
48.2
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
49
20
41.175
100
64.1
48
20
41.524
100
62.8
47
20
41.871
100
61.5
45
20
41.283
98
58.9
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
38
20
41.114
94
49.7
37
20
41.450
94
48.4
36
20
41.785
94
47.1
34
20
41.178
92
44.5
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.