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Why does the LBS and catalogs Rarely give out bike weights?

Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

Why does the LBS and catalogs Rarely give out bike weights?

Old 08-04-06, 06:48 PM
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Blaireau
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Why does the LBS and catalogs Rarely give out bike weights?

I found it pretty irritating when I was shopping at two LBS (actually part of a chain) for a new bike.
Every time I asked for the weight of the bike, they would either evade the question or tell me they couldn't tell me!
So back home I decided to check the internet, I couldn't find much info on current models of major brands. And nothing in their catalogs...What gives?
Anyways, I would suggest that we pool our resources and try to create a database with the weight for each of our bikes. This would give a newbie a rough idea --and this would be one point in favor of transparency and information!
Any takers?
Alternatively we could start a thread called "how much does your bike weigh" with the bike + the list of components...
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Old 08-04-06, 06:52 PM
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Weightweenies:

http://weightweenies.starbike.com/listings.php
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Old 08-04-06, 06:53 PM
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Excel Sports and Colorado Cyclist usually list frame weights. And they'll usually list entire bike weights if it's being sold as a complete bike. But I doubt that all of the weights listed are completely accurate.
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Old 08-04-06, 06:58 PM
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1. Every size frame has a different weight.
2. There are almost unlimited variations of components.
3. Some websites, such as Competitive Cyclist, let you choose each component and will show you how much each component weighs.
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Old 08-04-06, 07:12 PM
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I think that part of it is that manufactures always give weights based off of a component either after it's very first production run and/or based off of computer design parameters. Or, they simply don't publish it hoping that many just won't ask, or care. Just a note; when you use forging or extruding to make a part, the tooling wears as production goes on, so theoretically, and practically in my experience, the first one to "come off the line" will be the lightest, and the last one prior to replacing the tooling will be the heaviest. Some of the weight differences can be startling, but not insane though. As for assembled production bikes (e.g. a Trek 6500) companies will often start with a spec, then have to change something mid production due to shortages, recalls, etc... This is most prevelant with "off-brand" bottom brackets, hubs, headsets. A huge culprit, especially in mountain bikes, is tire weight. Mountain bike tires can vary greatly in weight among the same model. I personally have taken two "identical" tires and seen a 150gram difference between the two. Excel is good at publishing weights, but they tend to deal in higher end stuff where quality control is a little more, well...controlled. I have found that Nashbar is relatively good at publishing them as well. Now...what can you do? If you are looking for a complete bike, any bike shop worth it's salt BETTER have a hanging scale that you can throw the bike up on to see for yourself.
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Old 08-04-06, 08:09 PM
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I guess because for the majority of us, bicycle weight isn't such a big deal. Well at least for us big boys.
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Old 08-04-06, 08:49 PM
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They rarely give it out because of the unlimited combos of parts, you can just calculate it yourself since you can find component weights very easily online.
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Old 08-04-06, 09:14 PM
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1. competitors will lie, so you really don't want to tell the truth about weight
2. even if everyone told the truth, weight is not the most important feature of a bike and over-emphasizing it can lead to stupidly lightweight products, especially by small fly-by-night companies
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Old 08-06-06, 10:21 AM
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Originally Posted by johnny99
1. competitors will lie, so you really don't want to tell the truth about weight
2. even if everyone told the truth, weight is not the most important feature of a bike and over-emphasizing it can lead to stupidly lightweight products, especially by small fly-by-night companies

That seems to be the most realistic answer.

Cheers, Johnny!
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Old 08-07-06, 04:54 AM
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Go buy a gram scale and weigh everything out. I've never found an accurate weight listing except for user contributed weight weenies
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Old 08-07-06, 08:16 AM
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The LBS I go to has a scale. All an enterprising prospective buyer has to do is put the bike on the scale to determine its weight.

I can see why the manufacturer's do not publish the weights. Different sizes of frames weigh different amounts. Also, the manufacturers buy their components and who knows when some process might change in the component fabrication that changes its weight? I would think if the manufacturers published the weight of various bikes it would be a warrenty that the bike weighs exactly that much and that could produce no end of head aches for the manufacturer. It is easier to make determination of the weight of the bike the responsibility of the buyer.
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Old 08-07-06, 08:55 AM
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Fuji does give weights on their website with a disclaimer. It does give you a general idea for the differences between the $700 hybrid and the $3000 CF bike. They also say to weigh it at the bike shop if you want an accurate weight.
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Old 08-07-06, 04:27 PM
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It USED TO BE that weights were published freely. Cannondale had a weight for each model in its catalog. Bicycling printed their Buyer's Guide with a weight listed for dozens of models.

I'm guessing it was because:

1. The weights were unreliable, for reasons as discussed above.

2. Publishing the true weights didn't help sales.
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Old 08-07-06, 07:28 PM
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Originally Posted by johnny99
1. competitors will lie, so you really don't want to tell the truth about weight
2. even if everyone told the truth, weight is not the most important feature of a bike and over-emphasizing it can lead to stupidly lightweight products, especially by small fly-by-night companies
I agree. Some manufacturers strip parts off the bike (or substitute non-stock) parts for their "weigh-in" so they can give a better number, knowing that it will result in more sales. The buyer then finds out that his new bike weighs more (and sometimes, more) than the "catalog weight" and complains like H**L! The dealers finally told the manufacturers to just quit quoting weights (or so goes the story from my LBS).
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Old 08-07-06, 07:47 PM
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Engineering lesson: There is variability in everything.

Not only does each size of frame weigh different, but each frame within a size will weigh different.

Each component will weigh different even for the same component in the same group by the same manufacturer. The higher the level of component the smaller the variation.

As others have mentioned weigh it if it matters to you.
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