Low hanging aero fruit - handlebars?

Discuss light weight issues concerning road bikes & parts.
RocketRacing
Posts: 938
Joined: Thu May 10, 2018 2:43 am

by RocketRacing

I say look at the zipp data at the top of this page. Ignoring the riders abysmal non/aero jacket, based on their own data, aero bars are worth about as much as going one size smaller for bars. Makes sense that gains would be small, as the tops are only part of the frontal area of bars.

Compact drop should be more aero than classic drop. Narrow is faster. Aero tops are faster. Aero stems are faster. Not wrapping the tops is faster. Aero plugs may be faster. Dropping your hoods to be more level with the bars should be faster. Do all the above and gains may be beyond the margin of measuring error.

Instead of aero bars, i opted for lighter narrower (38cm vs 40cm) darimo drop bars with untaped tops. I am not saying aero bars would not be faster... but leading edge or not... it is a small gain in the big picture.

by Weenie


alcatraz
Posts: 2276
Joined: Mon Aug 29, 2016 11:19 am

by alcatraz

You guys running 44/42 bars are lucky because you can go to 40 which is available for all bars.

When you're already on 40 it's hell to go down. I'm running an integtated stem/bar combo and the smallest are usually 40. If there is a 38 or 36 then it's usually either expensive or heavy.

Enjoy easy downsizing. :D

shimmeD
Posts: 487
Joined: Thu Jun 28, 2012 10:52 pm
Location: eNZed

by shimmeD

Spare a thought also for those who are already on 36cm!
Less is more.

alcatraz
Posts: 2276
Joined: Mon Aug 29, 2016 11:19 am

by alcatraz

I'm crying on the inside for everyone on 40 or less :lol:

RocketRacing
Posts: 938
Joined: Thu May 10, 2018 2:43 am

by RocketRacing

I cry for larger riders who are naturally more unaerodnamic. Your large frames have taller headtubes and wider bars. On average you are wider also. :-P

hanakuso1
Posts: 51
Joined: Tue Jul 11, 2017 10:44 pm

by hanakuso1

Maybe I’m just out of shape but handlebar width is one of the options I prefer comfort over speed. I seem to get a lot of discomfort using too narrow handlebars

Marin
Posts: 3532
Joined: Wed Jan 22, 2014 11:48 am
Location: Vienna Austria

by Marin

I'm running 36s on my daily commuter, you get used to it. The 38s and 40s on my other bikes feel wide when I switch.
Last edited by Marin on Wed Jan 09, 2019 11:59 am, edited 1 time in total.

StevenH72
Posts: 53
Joined: Sun Jun 11, 2017 3:17 pm

by StevenH72

hanakuso1 wrote:
Tue Jan 08, 2019 7:54 am
Maybe I’m just out of shape but handlebar width is one of the options I prefer comfort over speed. I seem to get a lot of discomfort using too narrow handlebars
This is important, narrow handlebars don't necessarily equal better aerodynamics.


There's a good "Aero deep dive" vid on the Trainerroad youtube channel talking to the guy's from the Specialized Win Tunnel where they discuss this.

Narrow bars are only quiker if the rider can anatomically make use of them. In some cases narrow bars can alter the position of your shoulder blades and arms and negatively impact aerodynamics.

robeambro
Posts: 616
Joined: Sat Jul 07, 2018 6:21 pm

by robeambro

StevenH72 wrote:
Wed Jan 09, 2019 10:38 am
hanakuso1 wrote:
Tue Jan 08, 2019 7:54 am
Maybe I’m just out of shape but handlebar width is one of the options I prefer comfort over speed. I seem to get a lot of discomfort using too narrow handlebars
This is important, narrow handlebars don't necessarily equal better aerodynamics.


There's a good "Aero deep dive" vid on the Trainerroad youtube channel talking to the guy's from the Specialized Win Tunnel where they discuss this.

Narrow bars are only quiker if the rider can anatomically make use of them. In some cases narrow bars can alter the position of your shoulder blades and arms and negatively impact aerodynamics.
While I understand those guys will have tested it in their tunnel, I find it strange that for some it could bring an aerodynamics penalty (discomfort aside).
Would such people be negatively affected also when using TT bars then? It's still a case of having to get narrower, after all..

TobinHatesYou
Posts: 4310
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

robeambro wrote:
Thu Jan 10, 2019 11:42 am

While I understand those guys will have tested it in their tunnel, I find it strange that for some it could bring an aerodynamics penalty (discomfort aside).
Would such people be negatively affected also when using TT bars then? It's still a case of having to get narrower, after all..

Shoulders are weird. Some TTers don't run their forearm/elbow pads as close together as possible because it actually increases their frontal area at the shoulders. In the TrainerRoad podcast, the Specialized guys use a less fair comparison of a rider using narrower bars only to raise his head 1cm as a result.

Post Reply
  • Similar Topics
    Replies
    Views
    Last post