Hi Weenies,
Have any of you run into the following situation? I custom specified my Giant carbon bike and the store did all the assembly. When I received it I had no chance to weigh the individual components. At that time, I did not have a scale that could handle up to 16 to 20 lbs. to weigh the full bike.
So I took the bike to my local high end bike store and asked if they would weigh it. They had a spring scale hung in the middle of the sales area which looked like if could do the job. The weight came out to 15.5 lbs. I was happy because I expected closer to 16 lbs. A few weeks later, I bought a digital hanging scale (see my post, "Scales, I Need Scales") after a fair amount of research. I took my new scale to work to test its accuracy and found it to be right on the money.
You know the next part of the story. I weighed my bike and found it actually weighed 16.12 lbs. In other words, the bike store scale was over .5 lb optimistic. I called the store and related my sad tale. They were indifferent claiming the scale was offered as a customer convenience and accuracy was not guaranteed. OK, granted.
Here's the bottom line: be careful of scales of which are not of confirmed accuracy. At least I now know how much my bike actually weighs even if it is not as little as I would like.[/b]
WHAT DOES MY BIKE REALLY WEIGH??
Moderator: robbosmans
-
- Posts: 1019
- Joined: Thu Sep 26, 2002 3:42 pm
- Location: in Colorado
What good is a scale if it's wrong? You could take down to the local bar and have them guess. I guess the only thing dumber is the people who keep the stupid thing.
I think where I weighed mine was accurate. I took it to the post office.
I took the front wheel off and changed the angle of the seat so it would sit upside down on the seat.
I think where I weighed mine was accurate. I took it to the post office.
I took the front wheel off and changed the angle of the seat so it would sit upside down on the seat.
Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓ Broad Selection ✓ Worldwide Delivery ✓
www.starbike.com
I went online and bought a scale on EBAY for $25 that can handle up to 30lbs. It is made to handle postal stuff and you can convert it from lbs/oz to grams. Resolution is 2g up to 1000g and 5g above. It is called a
"My Weigh LS-30" and there is lots of them new on Ebay for that price. Next I modified an old microphone stand that I had from Radio Shack (these go for less than $20 also) that has a round heavy metal base and I put a clamp on it to hold the frame. In fact, you could use one of those cheap microphone clamps for that purpose. I put the stand on the balance, press the TARE button to zero the display then hang my bike on it. Its a bit ticky to balance the whole thing but once you have it you have a reall accurate weight. I used several calibration weights that I took home from work and the scale performs to specs. That is even with the bike on, if I add a 100g calibration weight the displayed weight goes up by 100g.
It is true that essentially ALL manufacturers lie about the component weights. They are an average of 20% off. So beware.
"My Weigh LS-30" and there is lots of them new on Ebay for that price. Next I modified an old microphone stand that I had from Radio Shack (these go for less than $20 also) that has a round heavy metal base and I put a clamp on it to hold the frame. In fact, you could use one of those cheap microphone clamps for that purpose. I put the stand on the balance, press the TARE button to zero the display then hang my bike on it. Its a bit ticky to balance the whole thing but once you have it you have a reall accurate weight. I used several calibration weights that I took home from work and the scale performs to specs. That is even with the bike on, if I add a 100g calibration weight the displayed weight goes up by 100g.
It is true that essentially ALL manufacturers lie about the component weights. They are an average of 20% off. So beware.
- Xterra Racer
- Posts: 370
- Joined: Thu Sep 11, 2003 9:10 pm
- Location: Colorado
- Contact:
Glia.....can you post a picture of the system you rigged up???
Hope this works
<img src="http://prod.bsis.bellsouth.net/coDataImages/p/Groups/26/26548/folders/89604/782814balance-1copy.JPG" width="470" height="327">
<img src="http://prod.bsis.bellsouth.net/coDataImages/p/Groups/26/26548/folders/89604/782825balance-3copy.JPG" width="470" height="215">
<img src="http://prod.bsis.bellsouth.net/coDataImages/p/Groups/26/26548/folders/89604/782814balance-1copy.JPG" width="470" height="327">
<img src="http://prod.bsis.bellsouth.net/coDataImages/p/Groups/26/26548/folders/89604/782825balance-3copy.JPG" width="470" height="215">
Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓ Broad Selection ✓ Worldwide Delivery ✓
www.starbike.com