BRP gearing calculator for top speed
| Top gear |
Bottom gear |
Chain (long) |
Chain (short) |
Ratio |
Top speed |
O.D speed |
| 19 |
43 |
? |
? |
|
|
|
| 20 |
43 |
? |
? |
|
|
|
| 21 |
43 |
? |
? |
|
|
|
| 22 |
43 |
? |
? |
|
|
|
| 23 |
43 |
? |
? |
|
|
|
| 24 |
43 |
? |
? |
|
|
|
| 25 |
43 |
? |
? |
|
|
|
| 26 |
43 |
? |
? |
|
|
|
| 27 |
43 |
? |
? |
|
|
|
| 19 |
45 |
? |
? |
|
|
|
| 20 |
45 |
106 |
112 |
|
|
|
| 21 |
45 |
106 |
112 |
|
|
|
| 22 |
45 |
106 |
112 |
|
|
|
| 23 |
45 |
108 |
114 |
|
|
|
| 24 |
45 |
108 |
114 |
|
|
|
| 25 |
45 |
108 |
114 |
|
|
|
| 26 |
45 |
108 |
114 |
|
|
|
| 27 |
45 |
110 |
116 |
|
|
|
| 19 |
49 |
? |
? |
|
|
|
| 20 |
49 |
108 |
114 |
|
|
|
| 21 |
49 |
108 |
114 |
|
|
|
| 22 |
49 |
108 |
114 |
|
|
|
| 23 |
49 |
110 |
116 |
|
|
|
| 24 |
49 |
110 |
116 |
|
|
|
| 25 |
49 |
110 |
116 |
|
|
|
| 26 |
49 |
110 |
116 |
|
|
|
| 27 |
49 |
110 |
118 |
|
|
|
| 19 |
51 |
110 |
114 |
|
|
|
| 20 |
51 |
110 |
114 |
|
|
|
| 21 |
51 |
110 |
116 |
|
|
|
| 22 |
51 |
2,32 |
110 |
|
|
|
| 23 |
51 |
110 |
116 |
|
|
|
| 24 |
51 |
? |
116 |
|
|
|
| 25 |
51 |
? |
116 |
|
|
|
| 26 |
51 |
? |
? |
|
|
|
| 27 |
51 |
? |
? |
|
|
|
| 19 |
53 |
110 |
116 |
|
|
|
| 20 |
53 |
110 |
116 |
|
|
|
| 21 |
53 |
110 |
116 |
|
|
|
| 22 |
53 |
112 |
116 |
|
|
|
| 23 |
53 |
112 |
? |
|
|
|
| 24 |
53 |
? |
? |
|
|
|
| 25 |
53 |
? |
? |
|
|
|
| 26 |
53 |
? |
? |
|
|
|
| 27 |
53 |
? |
? |
|
|
|