Tilton is proud to release their new range of 79-Series master cylinders. 79-Series master cylinders are specifically designed for use with motorsport ABS systems. Unlike traditional master cylinders, 79-Series master cylinders do not utilize a conventional cut-off port, and instead, feature a new port strategy with a mechanically opened cut-off/compensation path. Elimination of the cutoff port greatly reduces the chance of seal damage caused by high pressure pulsations from the ABS system.