Independent testing and manufacturer data consistently show 5-15 watts savings at 40-45 km/h compared to a standard club-fit jersey. The exact savings depend on your position, the jersey you're comparing against, and the specific aero jersey design. The extended sleeves account for roughly 40-60% of the total savings. At lower speeds (under 30 km/h), the savings diminish because aerodynamic drag is proportional to the square of velocity. For a rider averaging 35 km/h in a race, a 10-watt saving translates to roughly 40-50 seconds over a 40K time trial.
Cycling Jersey · Aero Race Jersey
How many watts does an aero race jersey actually save?
Related gear types
If this answer nudged you toward a different style, these guides compare specs and trade-offs.
Endurance / Club Road Jersey
$50 – $280
A road cycling jersey balancing performance with comfort for long-distance rides and spirited group rides.
semi-form fitmoisture-wicking fabricsthree rear pockets
Triathlon / TT Jersey
$60 – $300
Swim-compatible, aerodynamic jersey designed for the unique demands of triathlon and time trial events.
quick-dry fabricsswim-compatible constructionminimal seams
More questions
- How tight should an aero race jersey actually be?
- Can I wear an aero race jersey for long endurance rides?
- Why do aero race jerseys have such long sleeves?
- Are expensive aero race jerseys worth the premium price?