[roger55]

Sorry guys.
Line size makes no difference in the working of the brakes. 3/16" and 1/4" will both work fine and the brakes will work the same either way. Disc or drum, it makes no difference. It wouldn't matter if it were 2" pipe, the brakes would work exactly the same.

The only difference is that there is less friction loss with the larger diameter line. Since the rear is further from the master and both brakes use the same line for most of that distance, 1/4" is usually used in the rear to reduce the friction loss. More friction would just mean a little more pedal pressure from your foot would be required when the brakes are applied but it would not make a difference on pedal travel or anything else.