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PostPosted: Thu Jul 26, 2012 5:15 am 
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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.


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PostPosted: Thu Jul 26, 2012 5:26 am 
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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.

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PostPosted: Thu Jul 26, 2012 5:30 am 
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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

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PostPosted: Thu Jul 26, 2012 11:27 am 
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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.

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PostPosted: Thu Jul 26, 2012 11:33 am 
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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.

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PostPosted: Thu Jul 26, 2012 12:51 pm 
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Tinea Pedis wrote:
I miss the days when 'scienceiscool' would come in and debunk these threads.
If you remember, ScienceIsCool lost his cool.


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PostPosted: Thu Jul 26, 2012 1:45 pm 
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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.

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PostPosted: Thu Jul 26, 2012 2:00 pm 
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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:

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PostPosted: Wed Nov 19, 2014 5:12 am 
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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!


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PostPosted: Wed Nov 19, 2014 5:42 am 
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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!


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PostPosted: Wed Nov 19, 2014 5:59 am 
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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:


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PostPosted: Thu Nov 20, 2014 2:20 pm 
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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.

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PostPosted: Thu Nov 20, 2014 5:08 pm 
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Posts: 848
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.


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PostPosted: Fri Nov 21, 2014 11:14 pm 
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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.

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PostPosted: Sat Nov 22, 2014 8:59 pm 
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A lighter wheelset will not make you faster but IME the feeling is unique.

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