Complex sentence: A common upgrade is to replace the standard rubber hoses with a set which are externally reinforced with braided stainless-steel wires; these have negligible expansion under pressure and can give a firmer feel to the brake pedal with less pedal travel for a given braking effort.
Split into simpler sentences: A common upgrade is to replace the standard rubber hoses with a set which are externally reinforced with braided stainless-steel wires. The braided wires have negligible expansion under pressure and can give a firmer feel to the brake pedal with less pedal travel for a given braking effort.