One of the most popular speed oriented purchases, though often hotly debated. Helmets rank very high on the speed per dollar (or currency of your choice) scale. However, what is not always appreciated is that the fastest helmet varies by individual.
Recent years have seen the price of new aero helmets skyrocket (as with many other cycling products), partially thanks to brands wanting to establish a ‘halo’ product and partly because the nature of the market has dictated a lot more R&D. For a brand that previously created helmets based on aesthetics it is an expensive proposition to recover the cost of CFD and wind tunnel testing. Additionally the last couple of years have seen the advent of aero focussed road helmets which are a useful new option on the market.