It’s all about thermodynamics. The idea of a silicone hose is Ithat you replace the standard hose so it doesn’t expand and get hot under pressure. When heat is generated, it expands; water is heated and the hose is there to prevent excessive growth as the pressure rises, so your running pressure is reduced.
Investing in the engine? Invest in some decent hoses, too
Your brand-new bike, say an R1, has OEM hoses that are brilliant. Manufacturers recommenced you replace them every four years as rubber breaks down over a period of time. As the rubber breaks down, it gets softer, so subsequently your engine gets warm, the water expands, the hose expands and pressure inside is reduced. As the system pressure reduces, water temperature and boiling points rise and you’re more likely to overheat. The bottom line is, there’s nothing wrong with standard hoses – providing they are in good working order.