Master-cylinder/caliper connection
Choice of tubing
a. Where it is possible, we recommend the use of steel rigid pipes, since they do not increase brake fluid displacement.
b. In case, flexible brake hoses are used, it is necessary to use the Teflon type with braided steel sheath.
c. The hoses internal diameter must be 2.5 or 3 mm; the brake fluid displacement of 1 meter of these hoses is 0.2 cm MAX (for the type having internal diameter 2.5 mm), and 0.3 cm MAX (for the type having internal diameter 3 mm) at the pressure of 70 bar; hoses with a smaller diameter restrict fluid flow, while hoses with a bigger diameter would considerably increase the brake fluid displacement of the system.
Mounting
a. Pipe fittings must be tightened to the prescribed torque.
b. The pipe fittings seal must be sealed with annealed aluminum or copper seals; these seals can be used only once.
c. Check that tubes are not squashed or pinched and that they are not subjected to high temperatures (in the vicinity of the engine, exhaust pipes, etc.)