Brake efficiency is crucial for safety: Our safety depends on it and we give our trust while out on an adventure. A component in the perfect condition offers the reliability and performance needed to address each path in peace. When the levers of road bike gets harder and mobility decreases it is no longer able to find a perfect feeling with the shifters and consequently the performance disappears. In this case most likely the inner and outer brake cables need to be replaced with a new cable kit, making it much more smoother and softer during use. Even the hydraulic systems of mountain bikes require careful maintenance and this involves the replacement of the housing cable when worn or very old, as working at high pressures it should ensure a perfect seal and prevent the "empty" effect due to their expansion, even in extreme conditions .