Handlebar aerodynamics might be the most underrated performance gain in road cycling. A simple switch from round bars to an aerodynamic shape can save you 20-30 watts at racing speeds—far more than you'd gain from shaving grams off your frame. We dig into what actually makes handlebars fast, why narrow bars are making a comeback, and why you should probably stop obsessing over weight.
Key Takeaways
- Aerodynamic handlebar shapes save 20-30 watts at 45 km/h—far more than most weight savings
- Round handlebars are the worst aerodynamic option: they create more hand pressure, reduce comfort, and offer zero aero benefits
- You don't need extreme low positioning if you nail the 'long and narrow' combination with proper bar shape
- Modern bars are getting wider again after the 90s trend, but classic 35-38cm bars from the 70s offered better aero—we're rediscovering lost knowledge
- Prioritize aero shape over weight; obsessing over 10-gram savings forces mechanics to add weight elsewhere on the bike
Expert Quotes
"you should never ever ever be riding around handlebar I mean it just is the worst of all the possibilities right"
"the guys I grew up kind of being mentored by you know they were all racing like 35 and 38 centimeter bars it was really only I think in the 90s the bars started to get wide um again so it was kind of like we we had this this secret and then we kind of lost it and now we're finding it again"
"making the handlebar of an arrow cross section can be 20 to 30 Watts um which is nuts"