Am I over emphasizing weight?
#51
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The huge majority of people buy computers to do internet and e-mail and will never need a max-power system. Just like the huge majority of cyclist will never race their bike or max out the capability of their bike no matter what it weighs. Those who do can probably notice the differences. Don't need to nit-pick an analogy.
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Has coddling tendencies.
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You need to look at the average time trial pace over the years instead of overall average speed. The majority of time is spent in a pack for any rider.
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Don't know that TdF averages on TT, but I read an article recently about guys in the 1930's averaging about 25mph...on iron bikes. I just did 22 miles today and averaged a personal best 20.2mph.
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Obviously, this is pretty specific - single speed bicycle on a flat track - so may not speak to the "real world" aspects that come into play where weight may have some influence, namely hills and sprints.
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The hour record has next to nothing to do with the weight of the bike.
Unless you are racing or doing extreme mountains weight is negligible.
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there are plenty of wheelsets, like the Mavic Aksium, at 1900 to 2000g, without rubber
1 lb = 453 g
and plenty of wheelsets, like an Easton EA90, which are 1500g or well under...
and that's not even considerin the rubber...
not all are that expensive...
check weight weenies...
1 lb = 453 g
and plenty of wheelsets, like an Easton EA90, which are 1500g or well under...
and that's not even considerin the rubber...
not all are that expensive...
check weight weenies...
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From a physics standpoint, rotating mass will matter much more than the weight of the frame. Lowering the weight of the frame by a half pound wouldn't even come close to making the same difference as shaving a quarter pound from the wheels.
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My Kinlin/AC/Revolution wheels with Open Corsa rubber weigh more than 2 pounds less than my bike's stock CXP22/Specialized/14g wheels with wire bead tires... and that's not even delving into the world of carbon rims or low spoke counts.
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That theory has been debunked many times on this forum and elsewhere. Although rotating mass does exist, the effect it has on a bicycle wheel is so small, it couldn't be measured.
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All I can tell you guys is that my personal experience is the lighter my bike is, more water I can hold
Same here, but it also reminded me that I used my PC upgrade money for weight weenifying my bike.
There goes my dream of owning a revodrive and doing some more modification to my water cooling system....
There goes my dream of owning a revodrive and doing some more modification to my water cooling system....
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and the group TT is around 35mph
Team Discovery holds the record @ 35.6 MPH
Last edited by StevenAkaProek; 06-14-11 at 02:11 PM.
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While the numbers might looks small, the effect on the way a bike feels is not dismissable
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Placebo. I'm not saying it doesn't make any effect at all, but anyone who claims to notice it on their butt dyno should have a pea placed under their mattress.
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Usually, when people notice a difference in wheel weights it is from a parking lot test accelerating from 0 to 20MPH. In a real world scenario, like starting a sprint at 30MPH, the difference is negligible.
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Every debunking that I've seen about rotating mass has been with regard to acceleration, but I still wonder about flywheel/gyro effect on handling. What little looking I've done seems to indicate that rotating mass does affect the wheels ability/'desire' to stay upright. I think that this accounts for that difference in feel that people often note.
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Every debunking that I've seen about rotating mass has been with regard to acceleration, but I still wonder about flywheel/gyro effect on handling. What little looking I've done seems to indicate that rotating mass does affect the wheels ability/'desire' to stay upright. I think that this accounts for that difference in feel that people often note.
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