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




Post new topic Reply to topic  [ 32 posts ] 
Go to page Previous  1, 2, 3  Next
Author Message
PostPosted: Thu Jul 26, 2012 5:15 am 
Offline

Joined: Fri Jul 13, 2012 9:04 am
Posts: 114
Not sure on bikes, but rotating weight on a race car is 6 times more important than non rotating weight. Best lace to save weight in my opinion is the wheels and the cranks. You will definitely feel it.


Top
 Profile  
 
PostPosted: Thu Jul 26, 2012 5:26 am 
Offline
Moderator
User avatar

Joined: Sat Mar 14, 2009 6:08 am
Posts: 7466
Location: Geeeelong!
I miss the days when 'scienceiscool' would come in and debunk these threads.

I highly recommend having a search or using 'analytical cycling', this stuff has been covered before.

_________________
http://www.nicksquillari.com.au Forum Jedi


Top
 Profile  
 
Posted: Thu Jul 26, 2012 5:26 am 


Top
  
 
PostPosted: Thu Jul 26, 2012 5:30 am 
Offline
User avatar

Joined: Wed Oct 31, 2007 10:32 pm
Posts: 7412
Location: Los Angeles / Glendale, California
Of relevancy is the value of Rotational Inertia discussed in the latest aero-wheel test from Velo News.
See the pdf linked at this thread: viewtopic.php?f=3&t=105402

Or look up VeloNews.com -> Tech -> Wheel/Moment of Inertia

_________________
Exp001 || TeamLACBC


Top
 Profile  
 
PostPosted: Thu Jul 26, 2012 11:27 am 
Offline
User avatar

Joined: Sun Sep 21, 2008 9:07 pm
Posts: 985
Location: Slovenia---that forest land
test we do was 4 intervals.
1.1670g
10min recovery
2.1000g low profile carbon tubulars
10min rec
3. clinchers
10min rec
4.1000g tubulars

between hole interval 2 chekpoints

difference was couple seconds each test, puls almost same, test was within 1 h period. no wind and nice summer weather.

_________________
http://kavitec.blogspot.com/

click this! http://www.youtube.com/watch?v=0m8maAO-m-w


Top
 Profile  
 
PostPosted: Thu Jul 26, 2012 11:33 am 
Offline
User avatar

Joined: Sun Sep 21, 2008 9:07 pm
Posts: 985
Location: Slovenia---that forest land
if ride is constant tempo ride there verz little difference betwen 280g rim and 500g rim. it is more how it feels. when come to changes in speed there is differnce. but how much in time actualy must be done some test wiyh longer climb than 7 min. but in rideing- feeling lighter is more lively and easyer to speed up.

_________________
http://kavitec.blogspot.com/

click this! http://www.youtube.com/watch?v=0m8maAO-m-w


Top
 Profile  
 
PostPosted: Thu Jul 26, 2012 12:51 pm 
Offline
User avatar

Joined: Thu May 04, 2006 4:43 pm
Posts: 5096
Location: Wherever there's a mountain beckoning to be climbed
Tinea Pedis wrote:
I miss the days when 'scienceiscool' would come in and debunk these threads.
If you remember, ScienceIsCool lost his cool.


Top
 Profile  
 
PostPosted: Thu Jul 26, 2012 1:45 pm 
Offline

Joined: Fri Dec 15, 2006 7:45 pm
Posts: 3370
Location: Natovi Landing
At extreme ends of the spectrum you can notice weight in some circumstances IME ... I used to have a pair of the old Shimano WH-R540 wheels which are 1900g and have a hugely heavy rim weighing around 700g or so each. At speeds of 40kmh+ you could certainly notice they took more effort to stop than Zipp 202s.


Top
 Profile  
 
PostPosted: Thu Jul 26, 2012 2:00 pm 
Offline

Joined: Tue Jun 22, 2004 11:42 pm
Posts: 3914
Location: lat 38.9677 lon 77.3366
I own several sets of wheels. My favorites are not the lightest. IMO you need to consider all aspects of the wheel and the intended applacation. Consider a flat TT, weight is less an issue here. Racing crits? Weight counts more but stiffness IMO is more important. So to answer the question " is 200 grams noticeable?" I answer with, depends :beerchug:

_________________
WW Velocipedist Gargantuan


Top
 Profile  
 
PostPosted: Wed Nov 19, 2014 5:12 am 
Offline

Joined: Tue Nov 11, 2014 3:51 am
Posts: 33
Hey everyone, just after some opinions.

Ive got a handbuilt set of H Plus Son archetypes laced to King hubs, weight roughly 1650g. Im thinking about getting a set of the Campag Shamal Milles when they are released, as a do it all training wheelset. They come in at a claimed 1425g.

Would you just switch the H Plus son between bikes? Would the ~200g weight difference provide a noticeable difference in performance?

Any feedback is much appreciated!


Top
 Profile  
 
PostPosted: Wed Nov 19, 2014 5:42 am 
Offline

Joined: Mon Nov 11, 2013 6:48 pm
Posts: 53
200g isnt much. its all about price/gram and if you can save 200+100+100+50+200 etc.. = oh look 1kg less.
1500-1600gr for alu wheels is pretty much average (ie not bad wheels).

the other part is how good your wheels feel and roll.. archetype + king hubs should pretty good!


Top
 Profile  
 
PostPosted: Wed Nov 19, 2014 5:59 am 
Offline

Joined: Tue Nov 11, 2014 3:51 am
Posts: 33
Thanks for the advice! I guess getting a 1400g alu clincher isnt going to replicate a 1000-1100g tub! might save the pennies for a bit longer. :thumbup:


Top
 Profile  
 
PostPosted: Thu Nov 20, 2014 2:20 pm 
Offline

Joined: Fri Dec 15, 2006 7:45 pm
Posts: 3370
Location: Natovi Landing
jordan00 wrote:
Thanks for the advice! I guess getting a 1400g alu clincher isnt going to replicate a 1000-1100g tub! might save the pennies for a bit longer. :thumbup:


No it isn't.

And more to the point the route of thinking behind your question is a blind alley and you need to back out of it :-)

Lighter clinchers ends up meaning compromising the rim stiffness and durability - see the various Stans rim threads on this by way of example.

You end up not comparing apples with apples - to do that you'd need to go to noodly 800g set of tubulars (if such a thing exists)

Road feel is very different too with a tub.


Top
 Profile  
 
PostPosted: Thu Nov 20, 2014 5:08 pm 
Offline

Joined: Sun May 16, 2010 7:28 pm
Posts: 652
This is weightweenies. Stop being curmudgeons. 200g is fantastic, drop the weight. If you're too heavy or powerful for flexy wheels, then you probably should be visiting wattage or slowtwitch.


Top
 Profile  
 
PostPosted: Fri Nov 21, 2014 11:14 pm 
Offline
in the industry

Joined: Sat May 12, 2012 7:25 pm
Posts: 1599
Location: Glermsford, Suffolk U.K
200g won't make a real world difference but hey don't let that stop you. I change all kinds of stuff to loose a few grams and wonder why I bothered.

_________________
www.thecycleclinic.co.uk


Top
 Profile  
 
PostPosted: Sat Nov 22, 2014 8:59 pm 
Offline
User avatar

Joined: Sun Jun 18, 2006 10:29 am
Posts: 3563
Location: Athens, Greece
A lighter wheelset will not make you faster but IME the feeling is unique.

_________________
My 6696gr Cipollini Bond
My 8618gr Colnago Master X-light
My 9745gr Pinarello Dyna


Top
 Profile  
 
Posted: Sat Nov 22, 2014 8:59 pm 


Top
  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 32 posts ] 
Go to page Previous  1, 2, 3  Next


Who is online

Users browsing this forum: No registered users and 5 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. Lighter tubes? Noticeable?

[ Go to page: 1, 2 ]

in Road

PLuKE

25

1250

Sat Aug 23, 2014 4:46 am

AGW View the latest post

There are no new unread posts for this topic. More Weight savings required !! Help please..

in MTB

neilyoung123

5

716

Sat May 17, 2014 5:04 am

jooo View the latest post

There are no new unread posts for this topic. move to compact just for weight savings????

[ Go to page: 1, 2, 3 ]

in Road

mjduct

34

1982

Sun May 25, 2014 5:11 am

Nefarious86 View the latest post

There are no new unread posts for this topic. Giant Defy Composite weight savings?

in Introduce Yourself / Gallery - Please use metric weights.

HenryT2014

0

118

Fri Dec 19, 2014 8:32 pm

HenryT2014 View the latest post

There are no new unread posts for this topic. Disc-Only Carbon Tubular Rims; Weight Savings?

in Road

mca56

3

449

Wed Sep 03, 2014 12:44 am

964Cup View the latest post


It is currently Mon Dec 22, 2014 1:33 pm

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