Line Pressure Comparison
The table below shows the range of bore sizes available and shows the % step up from the previous size and line pressure based on 50 lb pedal load and a 5 to 1 pedal ratio.
| Master Cylinder Size mm/in. | 14.00/ 0.551" |
15.00/ 0.591" |
15.875/ 0.625" |
16.80/ 0.661" |
17.78/ 0.70" |
19.05/ 0.75" |
20.638/ 0.8125" |
22.225/ 0.875" |
23.813/ 0.9375" |
25.4/ 1.00" |
| Area sq in. | 0.2386 | 0.2739 | 0.3068 | 0.3436 | 0.3848 | 0.4418 | 0.5185 | 0.6013 | 0.6903 | 0.7854 |
| % step up from previous size | N/A | 14.8% | 12.0% | 12.0% | 12.0% | 14.8% | 17.4% | 16.0% | 14.8% | 13.8% |
| Pedal Load lb. | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Pedal Ratio | 5:1 | 5:1 | 5:1 | 5:1 | 5:1 | 5:1 | 5:1 | 5:1 | 5:1 | 5:1 |
| Line Pressure p.s.i. (single cylinder) | 1047.76 | 912.72 | 814.87 | 727.61 | 649.61 | 565.88 | 482.17 | 415.75 | 362.17 | 318.31 |