Aero data from 19 wheels by Hambini

Everything about building wheels, glueing tubs, etc.
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TiCass
Posts: 124
Joined: Thu Aug 04, 2016 1:13 pm

by TiCass

Oh wow... so the Zipp NSW are shit?

by Weenie


hambini
Posts: 356
Joined: Tue Nov 15, 2016 8:13 am

by hambini

TiCass wrote:
Wed Oct 17, 2018 9:57 pm
Oh wow... so the Zipp NSW are shit?
Yes, utter crap.

TiCass
Posts: 124
Joined: Thu Aug 04, 2016 1:13 pm

by TiCass

hambini wrote:
Wed Oct 17, 2018 10:03 pm
TiCass wrote:
Wed Oct 17, 2018 9:57 pm
Oh wow... so the Zipp NSW are shit?
Yes, utter crap.
So they release a more expensive and updated version of their 404... but perform poorer!?
Hopefully you won't receive a new letter from lawyers :P

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themidge
Posts: 898
Joined: Fri Jan 13, 2017 4:19 pm
Location: yer ma

by themidge

The Zipps you tested are the wiggly whale-inspired ones right? I remember the press release for those said something about being a bit slower than normal in head/tail winds, but better in crosswinds. Could be part of the reason why they tested so badly, but still, embarrassing for Zipp.

anykarthik
Posts: 26
Joined: Thu Jul 12, 2018 10:37 pm

by anykarthik

Someone needs to set hambini up with some Rovals 50s or 64s.

C36
Posts: 368
Joined: Fri Mar 03, 2017 3:24 am

by C36

Zipp layers are looking for Hambini :p
Jokes appart, that’s not the first data i see where the “wavy” profile is slower.


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bm0p700f
in the industry
Posts: 4111
Joined: Sat May 12, 2012 7:25 pm
Location: Glermsford, Suffolk U.K
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by bm0p700f

At least mine are better than the Zipps. Hambini and his fellow engineers do seem to onto something about the relationship between cross wind stability and drag or more specifically how much drag the wheel creates when the air flow occilates. The one thing for me is to start using internal nipples. while these are a potential pain for me to build with its worth 2-3W which means buying more spokes. So is it worth it? Not sure as depth seems to king for lower drag.

spud
Posts: 675
Joined: Sat Feb 07, 2009 5:52 am

by spud

based on some pretty bad experiences with Zipps of yore, I felt that internal nipples would benefit the integrity of the rim under higher tensions.

MagicShite
Posts: 26
Joined: Sun Jun 26, 2016 3:33 pm

by MagicShite

ryanw wrote:
Wed Oct 17, 2018 10:11 am
Hunt, FLo, Mavic.... Has to be.
Mavic doesn't actually do poorly in Hambini's tests. And the funny thing is, Mavics has always been reviewed badly everywhere else especially in the Aero department. Why a lawyer letter now? Doesn't make sense.

I'm inclined to think that it's Hunt too, but the FLO guys seems smart enough they could have just ignored this mess and avoid the Streisand effect. (besides their wheels are often hot enough that they are out of stock most of the time)

C36
Posts: 368
Joined: Fri Mar 03, 2017 3:24 am

by C36

MagicShite wrote:
ryanw wrote:
Wed Oct 17, 2018 10:11 am
Hunt, FLo, Mavic.... Has to be.
Mavic doesn't actually do poorly in Hambini's tests. And the funny thing is, Mavics has always been reviewed badly everywhere else especially in the Aero department. Why a lawyer letter now? Doesn't make sense.

I'm inclined to think that it's Hunt too, but the FLO guys seems smart enough they could have just ignored this mess and avoid the Streisand effect. (besides their wheels are often hot enough that they are out of stock most of the time)
Indeed. Unless people refer to the low profile ksyriums (that is not « bad » would even say pretty good for a low profile, no aero wheel) the Cosmic is behaving better that certain wheels 5mm taller...


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spartacus
Posts: 45
Joined: Mon Apr 04, 2011 6:53 pm

by spartacus

Any guesses how the HED JET 6 plus would stack up? I'm looking at those but now I'm tempted by these Yoeleo wheels...

spdntrxi
Posts: 1963
Joined: Sat Jul 20, 2013 6:11 pm

by spdntrxi

spartacus wrote:
Thu Oct 18, 2018 3:56 am
Any guesses how the HED JET 6 plus would stack up? I'm looking at those but now I'm tempted by these Yoeleo wheels...
My guess is that they would be well placed.. mid 180's.. they are good wheels and I'd certainly trust them more going down a mountain pass then Yoeleo.

mrlobber
Posts: 797
Joined: Sat Oct 23, 2010 9:36 am
Location: Where the permanent autumn is

by mrlobber

HED's are universally regarded as the at least 2nd best choice for almost anyone in triathlete community which does a lot of specific-rider centric aero testing.
Retired bikes: Cervelo S5 2015 / Felt AR FRD 2014 / Cannondale SS HM 2014 / Scott Addict SL 2014 / Scott Plasma Premium 2014 / Orbea Orca 2008 / Look 596 /

Bassett
Posts: 20
Joined: Tue Jun 23, 2015 10:41 am

by Bassett

The Zipp nws are not showing on the above chart (but are on Hambini’s own web site) is this Magic 😉

by Weenie


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