DIAMETER, ROLLOUT (CIRCUMFERENCE) AND REVOLUTIONS PER MILE CHART
Below is a chart to assist in vehicle drive-train calculations.
Diameter
Rollout
Revs/Mile*
17.5
55.0
1222
18
56.5
1186
18.5
58.1
1152
19
59.7
1120
19.5
61.3
1090
20
62.8
1061
22
69.1
960
22.5
70.7
938
23
72.3
917
23.5
73.8
896
24
75.4
877
24.5
77.0
858
25
78.5
840
25.5
80.1
823
26
81.7
807
26.5
83.3
791
27
84.8
776
27.5
86.4
761
28
88.0
747
28.5
89.5
733
29
91.1
720
29.5
92.7
708
30
94.2
695
30.5
95.8
684
31
97.4
672
31.5
99.0
661
32
100.5
651
32.5
102.1
640
33
103.7
630
33.5
105.2
621
34
106.8
611
34.5
108.4
602
35
110.0
593
35.5
111.5
585
36
113.1
576
36.5
114.7
568
37
116.2
560
37.5
117.8
553
38
119.4
545
38.5
121.0
538
39.5
124.1
524
40
125.7
517
45.5
142.9
453
46
144.5
448
53
166.5
388
53.5
168.1
384
54
169.6
381
*Based on approximate loaded radius.
This is Mickey Thompson General Technical Bulletin #3.
Revised 6/3/09
For more information regarding Mickey Thompson Performance Products
Website: mickeythompsontires.com
E-mail: tech@mickeythompsontires.com
Phone: 330.928.9092 OR 951.817.0101
