Aero Road Bikes

Aero road bikes use frame shapes, tube profiles, and component choices specifically designed to reduce wind resistance and improve speed. This makes them faster than standard road bikes at the same effort level, particularly on flat or rolling terrain. If speed and efficiency are your main goals, an aero road bike is worth considering over a standard endurance or sportive model.

Aero road bikes are best suited to performance-focused cyclists who ride fast, enter races, or regularly join competitive group rides. They tend to favour riders who are comfortable in a more aggressive, lower riding position for extended periods. If you are newer to road cycling or prioritise comfort over outright speed, an endurance road bike may be a better starting point.

Yes, aero road bikes work well for both high-intensity training and racing. Many riders use them as their primary road bike for fast-paced sessions, intervals, and long road rides where speed is a priority. The aerodynamic advantage is most noticeable at higher speeds, so the more you push the pace, the more benefit you will feel.

Sizing an aero road bike follows the same general principles as other road bikes, using your height and inseam length as a starting point. Because aero bikes often place you in a more stretched and lower position, fit becomes especially important to avoid discomfort or injury. We recommend visiting a 99 Bikes store for a professional fit assessment if you are unsure which size suits your body and riding style.

Generally yes, higher-priced aero road bikes use more advanced carbon fibre construction, refined tube shaping, and higher-tier groupsets that contribute to measurable performance gains. Entry and mid-range aero bikes still offer aerodynamic advantages over standard road frames, but the gains become more pronounced as you move up in price. Consider how seriously you ride and what your competitive goals are before deciding how much to invest.

Aero road bikes can absolutely be used for long-distance riding, and many competitive cyclists ride them for gran fondos and extended road events. The trade-off is that the aggressive riding position can become tiring

Finding the right bike size can feel tricky, as different bike types have slightly different geometries. To make it easier, we’ve created a Find Your Size tool. Simply enter your height and inseam measurements (or those of the person you’re shopping for), and we’ll recommend the best size for each bike and pre-select the recommended option for you.

Not sure of your inseam measurement? No worries! We provide an estimated inseam measurement based on your height to help keep your recommendation as accurate as possible.

You can find the tool on each product page or at the top of categories when browsing. Try Find Your Size.