, purchasing a bike isn't a case of picking the prettiest, or cheapest. As well as aesthetics and budget, think about how you'll use the bike and whether it fits you. "There's a simple order of priority when buying a new bike," explains Guy Andrews, editor

some research and making the investment because they can transform your bike and your performance.The spin doctor is inBefore you buy a set of wheels and tyres, consider your needs, the demands you'll be putting on your bike, and your budget THE WHEEL

and body position compared with riding on a standard racing bike without aero bars. Nine minutes! You would probably need to invest in new equipment and spend some time developing your riding position, but still, nine minutes!I compete in hilly triathlons

aerodynamic without the cost of wind-tunnel testing.Use a time-trial/triathlon bike – they have steeper seat-tube angles, helping you to achieve a more streamlined position, while also allowing for superior comfort and power application.Use a well-fitting aero