HOT: Active* forum members generally gain 5% discount at starbike.com store!
Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Articles FAQ Contact About




Post new topic Reply to topic  [ 22 posts ] 
Go to page 1, 2  Next
Author Message
 Post subject: Zipp SL-70 Aero
PostPosted: Thu Mar 13, 2014 12:18 am 
Offline
User avatar

Joined: Tue Mar 11, 2014 12:00 pm
Posts: 31
The latest Zipp SL-70 Aero... (no more Vuka sprint)

Image

Image

The bar’s distinctive wing-shaped top designed using Computational Fluid Dynamics (CFD), the same software used to design Zipp Firecrest wheels. And the difference of that design is real. A traditional round-tube section creates drag of about 0.74 Newtons, which we found requires about 7.5 watts of effort at 30mph (48.3kph) to overcome. The airfoil developed in CFD that is used in the SL-70 Aero handlebar creates just 0.11N of drag, which means a savings of 6.4 watts over a round-tube section

weight? 240gr

Retail Availability: March 2014
MSRP: $350, €300

_________________
---------------------------------------------------
"Racing is life. Anything before or after is just waiting"
-Steve McQueen-


Top
 Profile  
 
 Post subject: Zipp SL-70 Aero
Posted: Thu Mar 13, 2014 12:18 am 


Top
  
 
 Post subject: Re: Zipp SL-70 Aero
PostPosted: Thu Mar 13, 2014 2:04 am 
Offline
User avatar

Joined: Sun Oct 24, 2004 1:41 am
Posts: 536
Location: Toronto, Canada
Pretty much a vuka sprint which I used for two years

Very aero, not uci, legal, when you hit the back of the bar when sprinting in the drops you bruise and Charlie horse your forearm, they are not that light and not that stiff.


Top
 Profile  
 
 Post subject: Re: Zipp SL-70 Aero
PostPosted: Thu Mar 13, 2014 2:30 am 
Offline

Joined: Fri Aug 31, 2012 6:32 pm
Posts: 154
On another forum a Zipp employee said these bars are much more friendly when sprinting and also have much better cable routing.


Top
 Profile  
 
 Post subject: Re: Zipp SL-70 Aero
PostPosted: Thu Mar 13, 2014 9:01 am 
Offline
User avatar

Joined: Tue Mar 11, 2014 12:00 pm
Posts: 31
ajh wrote:
Pretty much a vuka sprint which I used for two years

Very aero, not uci, legal, when you hit the back of the bar when sprinting in the drops you bruise and Charlie horse your forearm, they are not that light and not that stiff.


still using the vuka sprint... no issues at all... even when sprinting....;-)

_________________
---------------------------------------------------
"Racing is life. Anything before or after is just waiting"
-Steve McQueen-


Top
 Profile  
 
 Post subject: Re: Zipp SL-70 Aero
PostPosted: Thu Mar 13, 2014 10:14 am 
Offline
Formerly known as wassertreter

Joined: Tue Apr 12, 2011 8:08 am
Posts: 2009
Location: Pedal Square
Monza36 wrote:
The airfoil developed in CFD that is used in the SL-70 Aero handlebar creates just 0.11N of drag, which means a savings of 6.4 watts over a round-tube section

Wondering about the test protocol. Just the bars, bars with bike, or complete setup with dummy.

_________________
Bikes: Raw Ti, 650b flatbar CX


Top
 Profile  
 
 Post subject: Re: Zipp SL-70 Aero
PostPosted: Fri Mar 14, 2014 9:29 am 
Offline
User avatar

Joined: Tue Mar 11, 2014 12:00 pm
Posts: 31
ajh wrote:
Pretty much a vuka sprint which I used for two years

Very aero, not uci, legal, when you hit the back of the bar when sprinting in the drops you bruise and Charlie horse your forearm, they are not that light and not that stiff.


well, actually it is uci legal

Notes:
Features Zipp’s Rapid Routing™ system,
first developed for the Vuka Stealth integrated aero system, f
or easy internal cable routing.
UCI legal.
Compatible with all mechanical brake/gear systems and all electronic gear systems. Not clip compatible.

_________________
---------------------------------------------------
"Racing is life. Anything before or after is just waiting"
-Steve McQueen-


Top
 Profile  
 
 Post subject: Re: Zipp SL-70 Aero
PostPosted: Fri Mar 14, 2014 12:43 pm 
Offline
User avatar

Joined: Tue Apr 18, 2006 3:03 am
Posts: 1882
Location: Islip, NY
wassertreter wrote:
Wondering about the test protocol. Just the bars, bars with bike, or complete setup with dummy.



Handlebars hit clean air so I think it doesn't matter.

_________________
www.ergottwheels.com


Top
 Profile  
 
 Post subject: Re: Zipp SL-70 Aero
PostPosted: Tue Jul 15, 2014 7:19 pm 
Offline

Joined: Tue Jul 15, 2014 7:16 pm
Posts: 1
Location: Buenos Aires, Argentina
Hello to everyone, can someone explain to me if there´s any difference between Zipp´s Sl 145 stem to the Sl sprint and also between Vuka sprint bar and the Sl-70 aero? thanks


Top
 Profile  
 
 Post subject: Re: Zipp SL-70 Aero
PostPosted: Tue Jul 15, 2014 9:49 pm 
Offline

Joined: Tue Aug 07, 2012 6:35 am
Posts: 203
Location: Parakai, New Zealand
Anyone got real life photo's of the forementioned bar?


Top
 Profile  
 
 Post subject: Re: Zipp SL-70 Aero
PostPosted: Wed Jul 16, 2014 3:29 am 
Offline

Joined: Wed Jun 01, 2011 7:53 am
Posts: 303
Looks like they left enough room for an out front mount.


Top
 Profile  
 
 Post subject: Re: Zipp SL-70 Aero
PostPosted: Wed Jul 16, 2014 3:58 am 
Offline

Joined: Sat Feb 22, 2014 6:06 pm
Posts: 15
dmoneysworks wrote:
Anyone got real life photo's of the forementioned bar?

Here is a pic of mine with the SL sprint stem. I needed a compact bar for a better fit and these fit the bill beautifully. Image


Top
 Profile  
 
 Post subject: Re: Zipp SL-70 Aero
PostPosted: Wed Jul 16, 2014 3:59 am 
Offline

Joined: Sat Feb 22, 2014 6:06 pm
Posts: 15
Performance wise, I have no issues with them. I noticed more of a difference with the SL Sprint stem to be honest. I'm coming from a Storck cockpit by the way. The stem really helps improve your control of the bike, especially at high speeds. Price wise it's not cheap but discounts can be had out there especially from a good LBS.

*if you have an Aero bike or near aero like mine (Aernario) it really adds to the overall aesthetics.


Top
 Profile  
 
 Post subject: Re: Zipp SL-70 Aero
PostPosted: Wed Jul 16, 2014 9:37 pm 
Offline

Joined: Tue Jan 07, 2014 9:20 am
Posts: 106
HillRPete wrote:
Monza36 wrote:
Wondering about the test protocol. Just the bars, bars with bike, or complete setup with dummy.


I'm thinking aero bars test well on a bike w/o rider but I'm wondering if that all vanishes with the rider onboard? As far as frontal area the rider's legs end up right behind the bars so I'm thinking there's no practical difference in terms of total drag. Sort of like how Specialized found no difference in drag with and without a beard in the wind tunnel.

Image


Top
 Profile  
 
 Post subject: Re: Zipp SL-70 Aero
PostPosted: Wed Jul 16, 2014 10:29 pm 
Offline
in the industry
User avatar

Joined: Wed Oct 31, 2007 10:45 pm
Posts: 331
Location: Indianapolis
They test quite well with a rider.

_________________
Former Zipp test engineer


Top
 Profile  
 
 Post subject: Re: Zipp SL-70 Aero
Posted: Wed Jul 16, 2014 10:29 pm 


Top
  
 
 Post subject: Re: Zipp SL-70 Aero
PostPosted: Wed Jul 16, 2014 10:34 pm 
Offline

Joined: Tue Jan 07, 2014 9:20 am
Posts: 106
Waldo wrote:
They test quite well with a rider.


It would be nice to see that data (and to quantify "quite well.") The marketing claims are 6w at 30mph with no link to test data or methodology. As mentioned, this is one of those instances where testing a bike w/o a rider might exaggerate the aero benefits.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 22 posts ] 
Go to page 1, 2  Next


Who is online

Users browsing this forum: Baidu [Spider], Bing [Bot], Gearjunkie, Google Adsense [Bot], KLabs, rwatt, Yahoo [Bot] and 34 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Any experience with Zipp SL-70 Aero Carbon Handlebar?

in Road

tranzformer

5

799

Wed Jul 16, 2014 4:14 am

Succisa75 View the latest post

There are no new unread posts for this topic. New aero test: 12 aero frames vs 12 "unaero" light frames

[ Go to page: 1 ... 17, 18, 19 ]

in Road

fa63

280

21315

Sun Oct 19, 2014 7:37 pm

dunbar42 View the latest post

There are no new unread posts for this topic. Corima Aero S?

in Road

ichobi

2

621

Mon Jul 28, 2014 1:49 am

ichobi View the latest post

There are no new unread posts for this topic. Parlee ESX Aero

[ Go to page: 1 ... 6, 7, 8 ]

in Road

Ozrider

110

12168

Tue Sep 09, 2014 2:49 pm

djconnel View the latest post

There are no new unread posts for this topic. Road Aero Bar Comfort

in Road

action09

2

185

Sat Oct 25, 2014 7:59 pm

dunbar42 View the latest post


It is currently Sun Oct 26, 2014 12:47 am

All times are UTC + 1 hour




Advertising   –  FAQ   –  Contact   –  Convert   –  About

© Weight Weenies 2000-2013
hosted by starbike.com


How to get rid of these ads? Just register!


Powered by phpBB