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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
34
19
42.755
94
46.8
36
20
43.058
96
47.1
35
19
42.422
94
48.2
37
20
42.724
96
48.4
34
18
43.058
94
49.4
38
20
42.389
96
49.7
35
18
42.724
94
50.9
37
19
43.026
96
50.9
38
19
42.690
96
52.3
36
18
42.389
94
52.3
40
20
42.990
98
52.3
41
20
42.651
98
53.6
39
19
42.352
96
53.7
35
17
43.026
94
53.9
42
20
42.311
98
54.9
38
18
42.990
96
55.2
36
17
42.690
94
55.4
34
16
42.389
92
55.6
41
19
42.950
98
56.5
39
18
42.651
96
56.7
37
17
42.352
94
56.9
44
20
42.905
100
57.6
42
19
42.609
98
57.8
40
18
42.311
96
58.1
45
20
42.562
100
58.9
36
16
42.990
94
58.9
43
19
42.266
98
59.2
34
15
42.690
92
59.3
39
17
42.950
96
60.0
46
20
42.217
100
60.2
37
16
42.651
94
60.5
42
18
42.905
98
61.0
35
15
42.352
92
61.0
40
17
42.609
96
61.6
45
19
42.857
100
62.0
38
16
42.311
94
62.1
43
18
42.562
98
62.5
48
20
42.805
102
62.8
41
17
42.266
96
63.1
46
19
42.512
100
63.3
34
14
42.990
92
63.5
44
18
42.217
98
63.9
49
20
42.457
102
64.1
37
15
42.950
94
64.5
47
19
42.165
100
64.7
50
20
42.108
102
65.4
40
16
42.905
96
65.4
35
14
42.651
92
65.4
48
19
43.098
102
66.1
43
17
42.857
98
66.2
38
15
42.609
94
66.3
51
20
43.041
104
66.7
46
18
42.805
100
66.9
41
16
42.562
96
67.0
36
14
42.311
92
67.3
49
19
42.749
102
67.5
44
17
42.512
98
67.7
52
20
42.689
104
68.0
39
15
42.266
94
68.0
47
18
42.457
100
68.3
42
16
42.217
96
68.7
50
19
42.399
102
68.8
45
17
42.165
98
69.2
53
20
42.336
104
69.3
48
18
42.108
100
69.8
35
13
42.950
92
70.4
46
17
43.098
100
70.8
38
14
42.905
94
71.0
49
18
43.041
102
71.2
41
15
42.857
96
71.5
52
19
42.979
104
71.6
44
16
42.805
98
71.9
47
17
42.749
100
72.3
36
13
42.609
92
72.4
50
18
42.689
102
72.7
39
14
42.562
94
72.9
53
19
42.625
104
73.0
42
15
42.512
96
73.2
45
16
42.457
98
73.6
48
17
42.399
100
73.9
51
18
42.336
102
74.1
37
13
42.266
92
74.5
40
14
42.217
94
74.7
43
15
42.165
96
75.0
46
16
42.108
98
75.2
44
15
43.098
98
76.7
47
16
43.041
100
76.8
50
17
42.979
102
76.9
53
18
42.913
104
77.0
51
17
42.625
102
78.5
48
16
42.689
100
78.5
45
15
42.749
98
78.5
42
14
42.805
96
78.5
39
13
42.857
94
78.5
52
17
42.269
102
80.0
49
16
42.336
100
80.1
46
15
42.399
98
80.2
43
14
42.457
96
80.3
40
13
42.512
94
80.5
44
14
42.108
96
82.2
41
13
42.165
94
82.5
51
16
42.913
102
83.4
48
15
42.979
100
83.7
45
14
43.041
98
84.1
42
13
43.098
96
84.5
52
16
42.556
102
85.0
49
15
42.625
100
85.5
46
14
42.689
98
86.0
43
13
42.749
96
86.5
53
16
42.198
102
86.7
50
15
42.269
100
87.2
47
14
42.336
98
87.8
44
13
42.399
96
88.5
52
15
42.843
102
90.7
49
14
42.913
100
91.6
53
15
42.484
102
92.4
46
13
42.979
98
92.6
50
14
42.556
100
93.4
47
13
42.625
98
94.6
51
14
42.198
100
95.3
48
13
42.269
98
96.6
53
14
42.769
102
99.0
50
13
42.843
100
100.6
51
13
42.484
100
102.6
52
13
42.123
100
104.6
53
13
43.054
102
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.