2/20/2004
20 x 1 1/8  (20" inflated diameter) Profile mini Cassette Small Cog
  24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
9 51.3 53.5 55.6 57.8 59.9 62.0 64.2                
10 46.2 48.1 50.1 52.0 53.9 55.8 57.8 59.7 61.6 63.5          
11 42.0 43.8 45.5 47.3 49.0 50.8 52.5 54.3 56.0 57.8 59.5 61.3 63.0 64.8  
12   40.1 41.7 43.3 44.9 46.5 48.1 49.7  
13       40.0 41.5 42.9 44.4 45.9  
                               
20 x 1 1/8  (20" inflated diameter)
  32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
12 53.3 55.0 56.7 58.3 60.0 61.7 63.3 65.0              
13 49.2 50.8 52.3 53.8 55.4 56.9 58.5 60.0 61.5 63.1 64.6        
14 45.7 47.1 48.6 50.0 51.4 52.9 54.3 55.7 57.1 58.6 60.0 61.4 62.9 64.3  
15 42.7 44.0 45.3 46.7 48.0 49.3 50.7 52.0 53.3 54.7 56.0 57.3 58.7 60.0 61.3
16 40.0 41.3 42.5 43.8 45.0 46.3 47.5 48.8 50.0 51.3 52.5 53.8 55.0 56.3 57.5
17     40.0 41.2 42.4 43.5 44.7 45.9 47.1 48.2 49.4 50.6 51.8 52.9 54.1
18         40.0 41.1 42.2 43.3 44.4 45.6 46.7 47.8 48.9 50.0 51.1
                               
                               
20 x 1 1/8  (with 1 3/8 tires, 20.5" inflated diameter)
  32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
12 58.1 59.8 61.5 63.2 64.9 66.6                  
13 53.6 55.2 56.8 58.3 59.9 61.5 63.1 64.7              
14 49.8 51.3 52.7 54.2 55.6 57.1 58.6 60.0 61.5 63.0 64.4        
15 46.5 47.8 49.2 50.6 51.9 53.3 54.7 56.0 57.4 58.8 60.1 61.5 62.9 64.2 64.0
16 43.6 44.8 46.1 47.4 48.7 50.0 51.3 52.5 53.8 55.1 56.4 57.7 58.9 60.2 60.0
17 41.0 42.2 43.4 44.6 45.8 47.0 48.2 49.4 50.6 51.9 53.1 54.3 55.5 56.7 56.5
18     41.0 42.1 43.3 44.4 45.6 46.7 47.8 49.0 50.1 51.3 52.4 53.5 53.3
                               
                               
20 x 1 3/8  (21" inflated diameter)
  32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
12 56.0 57.8 59.5 61.3 63.0 64.8                  
13 51.7 53.3 54.9 56.5 58.2 59.8 61.4 63.0 64.6            
14 48.0 49.5 51.0 52.5 54.0 55.5 57.0 58.5 60.0 61.5 63.0 64.5      
15 44.8 46.2 47.6 49.0 50.4 51.8 53.2 54.6 56.0 57.4 58.8 60.2 61.6 63.0 64.4
16 42.0 43.3 44.6 45.9 47.3 48.6 49.9 51.2 52.5 53.8 55.1 56.4 57.8 59.1 60.4
17   40.8 42.0 43.2 44.5 45.7 46.9 48.2 49.4 50.6 51.9 53.1 54.4 55.6 56.8
18       40.8 42.0 43.2 44.3 45.5 46.7 47.8 49.0 50.2 51.3 52.5 53.7
                               
                               
20 x 1.50  (19.25 inflated diameter) 
  32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
12 51.3 52.9 54.5 56.1 57.8 59.4 61.0 62.6 64.2            
13 47.4 48.9 50.3 51.8 53.3 54.8 56.3 57.8 59.2 60.7 62.2 63.7      
14 44.0 45.4 46.8 48.1 49.5 50.9 52.3 53.6 55.0 56.4 57.8 59.1 60.5 61.9 63.3
15 41.1 42.4 43.6 44.9 46.2 47.5 48.8 50.1 51.3 52.6 53.9 55.2 56.5 57.8 59.0
16     40.9 42.1 43.3 44.5 45.7 46.9 48.1 49.3 50.5 51.7 52.9 54.1 55.3
17         40.8 41.9 43.0 44.2 45.3 46.4 47.6 48.7 49.8 51.0 52.1
18             40.6 41.7 42.8 43.8 44.9 46.0 47.1 48.1 49.2
20 x 1.75  (19.50" inflated diameter) Profile mini Cassette Small Cog
  24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
9 51.3 53.5 55.6 57.8 59.9 62.0 64.2                
10 46.2 48.1 50.1 52.0 53.9 55.8 57.8 59.7 61.6 63.5          
11 42.0 43.8 45.5 47.3 49.0 50.8 52.5 54.3 56.0 57.8 59.5 61.3 63.0 64.8  
12   40.1 41.7 43.3 44.9 46.5 48.1 49.7  
13       40.0 41.5 42.9 44.4 45.9  
   
20 x 1.75  (19.50" inflated diameter)
  32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
12 52.0 53.6 55.3 56.9 58.5 60.1 61.8 63.4              
13 48.0 49.5 51.0 52.5 54.0 55.5 57.0 58.5 60.0 61.5 63.0 64.5      
14 44.6 46.0 47.4 48.8 50.1 51.5 52.9 54.3 55.7 57.1 58.5 59.9 61.3 62.7 64.1
15 41.6 42.9 44.2 45.5 46.8 48.1 49.4 50.7 52.0 53.3 54.6 55.9 57.2 58.5 59.8
16   40.2 41.4 42.7 43.9 45.1 46.3 47.5 48.8 50.0 51.2 52.4 53.6 54.8 56.1
17       40.1 41.3 42.4 43.6 44.7 45.9 47.0 48.2 49.3 50.5 51.6 52.8
18           40.1 41.2 42.3 43.3 44.4 45.5 46.6 47.7 48.8 49.8
                               
                               
24 x 1  (22.375" inflated diameter)
  34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
14 54.3 55.9 57.5 59.1 60.7 62.3 63.9                
15 50.7 52.2 53.7 55.2 56.7 58.2 59.7 61.2 62.7 64.1          
16 47.5 48.9 50.3 51.7 53.1 54.5 55.9 57.3 58.7 60.1 61.5 62.9 64.3    
17 44.8 46.1 47.4 48.7 50.0 51.3 52.6 54.0 55.3 56.6 57.9 59.2 60.5 61.9 63.9
18 42.3 43.5 44.8 46.0 47.2 48.5 49.7 51.0 52.2 53.5 54.7 55.9 57.2 58.4 60.3
                               
                               
24 x 1 1/8  (22.625" inflated diameter) (Baylie, Keely)
  34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
14 54.9 56.6 58.2 59.8 61.4 63.0 64.6 66.3 67.9            
15 51.3 52.8 54.3 55.8 57.3 58.8 60.3 61.8 63.4 64.9          
16 48.1 49.5 50.9 52.3 53.7 55.1 56.6 58.0 59.4 60.8 62.2 63.6      
17 45.3 46.6 47.9 49.2 50.6 51.9 53.2 54.6 55.9 57.2 58.6 59.9 61.2 62.6 63.9
18 42.7 44.0 45.3 46.5 47.8 49.0 50.3 51.5 52.8 54.0 55.3 56.6 57.8 59.1 60.3
                               
                               
24 x 1 1/8  (with 1 3/8 tires, 23.25" inflated diameter)
  34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
14 56.5 58.1 59.8 61.4 63.1 64.8                  
15 52.7 54.3 55.8 57.4 58.9 60.5 62.0 63.6              
16 49.4 50.9 52.3 53.8 55.2 56.7 58.1 59.6 61.0 62.5 63.9        
17 46.5 47.9 49.2 50.6 52.0 53.3 54.7 56.1 57.4 58.8 60.2 61.5 62.9 64.3  
18 43.9 45.2 46.5 47.8 49.1 50.4 51.7 53.0 54.3 55.5 56.8 58.1 59.4 60.7 62.0
                               
                               
24 x 1.75  (24" inflated diameter)
  34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
14 58.3 60.0 61.7 63.4                      
15 54.4 56.0 57.6 59.2 60.8 62.4 64.0                
16 51.0 52.5 54.0 55.5 57.0 58.5 60.0 61.5 63.0 64.5          
17 48.0 49.4 50.8 52.2 53.6 55.1 56.5 57.9 59.3 60.7 62.1 63.5 64.9    
18 45.3 46.7 48.0 49.3 50.7 52.0 53.3 54.7 56.0 57.3 58.7 60.0 61.3 62.7 64.0
                               
                               
24 x 1.50  (23" inflated diameter)
  34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
14 55.9 57.5 59.1 60.8 62.4 64.1 65.7 67.4 69 70.6 72.3 73.9 75.6 77.2 78.9
15 52.1 53.7 55.2 56.7 58.3 59.8 61.3 62.9 64.4 65.9 67.5 69 70.5 72.1 73.6
16 48.9 50.3 51.8 53.2 54.6 56.1 57.5 58.9 60.4 61.8 63.3 64.7 66.1 67.6 69
17 46 47.4 48.7 50.1 51.4 52.8 54.1 55.5 56.8 58.2 59.5 60.9 62.2 63.6 64.9
18 43.4 44.7 46 47.3 48.6 49.8 51.1 52.4 53.7 54.9 56.2 57.5 58.8 60.1 61.3