Your body can account for up to 80 percent of your total CdA depending on your weight and build, so this is the obvious place to find initial gains. Also, the “cost per watt” gained will be lower than upgrading your wheels or your frame for example.
You can adjust your body position at no charge unless you chose to change your extensions or complete front-end as part of the process. Be aware though that there may be an impact on your sustainable power as a result of closing your hip angle if you get too compact.
If you are using basic cycling kit it will be worth investigating alternatives like a specific skin suit.
If you are using a basic cycling helmet it will be worth investigating aero helmets for road bike, triathlon, or time trial events.
When it comes to the bike, wheels usually offer a better “cost per watt” upgrade than a frame. You could be looking at a 30 watt saving going from basic road wheels to deeper section aero wheels with the correct choice of tyre.
What we have seen in the 2026 previews is a move away from the 60mm to 80mm deep aero wheels to rim depths of 40mm to 50mm, specifically designed to take wider tyres with lower rolling resistance. The rims are designed to combine with the tyre into a single aero profile. Most of these wheels are coming out as disk brake only. Eliminating the braking surface eliminates the need for heat disipation. This reduces the weight of the rim and also frees the designer to focus on the aero profile.