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Confused...

Old 09-09-04, 02:26 PM
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cycleprincess
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Confused...

Yes, I am a little post happy today. Besides that, I"m confused. Not a difficult thing to do. Anyway, here is my question. The LBS told me the bike I was riding was too big for me. It does feel big, although there is crotch clearance. They swapped out the stem and that helped. Bottom line, they told me it was too big. So I'm thinking of getting a new bike. They measured me (with the all too comfortable spring loaded stick) and decided to put me on a 54 Trek frame. My Bianchi frame is 52 (I just looked). If the Bianchi is "too big" for me at 52, how can the 54 Trek fit? Is there that much difference in the brands? I know it works that way for jeans, but bikes too?
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Old 09-09-04, 02:29 PM
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The only thing I can figure is that either they don't know what they are talking about and want to sell another bike, or the TREK was the frame designed for females.
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Old 09-09-04, 02:32 PM
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There can be a big variance between brands. I don't know if it's that big though. My lbs told me they aren't nearly as worried as they used to be about frame size b/c there are so many other easy adjustments to make, but that doesn't explain the discrepancy either. Maybe check a second lbs? Did the Trek frame feel as big as the Bianchi? Perhaps a side by side comparison would help. DId the lbs have smaller frames in stock that you could have tried? Maybe they just put you on the smallest that they had and hoped to sell it.

Or maybe Ctyler is right and it was the wsd version. That might be a good thing if the fit is right.
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Old 09-09-04, 02:37 PM
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do those bikes both have the same geometry? maybe one is compact and the other is not?? not sure.
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Old 09-09-04, 02:40 PM
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What is the top tube length of the two bikes? I belive bikes should be sized by the top tube, but maybe that's just me

-murray
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Old 09-09-04, 02:40 PM
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Originally Posted by cycleprincess
Yes, I am a little post happy today. Besides that, I"m confused. Not a difficult thing to do. Anyway, here is my question. The LBS told me the bike I was riding was too big for me. It does feel big, although there is crotch clearance. They swapped out the stem and that helped. Bottom line, they told me it was too big. So I'm thinking of getting a new bike. They measured me (with the all too comfortable spring loaded stick) and decided to put me on a 54 Trek frame. My Bianchi frame is 52 (I just looked). If the Bianchi is "too big" for me at 52, how can the 54 Trek fit? Is there that much difference in the brands? I know it works that way for jeans, but bikes too?
Trek measrues to the top of an extexded seattube,bianchi measures differently to get nominal frame size. The Trek could have more standover yet have the same or longer toptube length. Check the toptube lengths.
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Old 09-09-04, 02:42 PM
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Who sold you the too big bike ?

Can you say refund ?
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Old 09-09-04, 02:47 PM
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The Trek is measured center to top meaning center of the bottom bracket to the top of the seat tube. Bianchi is measured center to center meaning center of the bottom bracket to the center of where the top tube and seat tube meet. For example you could ride a 56 cm in Bianchi and a 58 or a 59cm in Trek. But do check the length of the top tube as this is more critical than seat tube length.

Last edited by 2Rodies; 09-09-04 at 02:59 PM.
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Old 09-09-04, 03:04 PM
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Now explain this one!! Bianchi top tube length is 50.8, Trek top tube is 53.5.

I am super confused now.
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Old 09-09-04, 03:07 PM
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Could you post what model of Bianchi and Trek you are looking at, my buddies shop sells both brands and I'll call him and get the scoop for you.

If you are referring to the Bianchi Volpe (isn't that what you said you rode?) Bianchi lists the tt length on the 52 as 53.0 cm.

Last edited by 2Rodies; 09-09-04 at 03:15 PM.
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Old 09-09-04, 03:15 PM
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Originally Posted by cycleprincess
Now explain this one!! Bianchi top tube length is 50.8, Trek top tube is 53.5.

I am super confused now.
Are you sure you measured your top tube length correctly? ....center to center...

Top tube length fit is just as or more important than mere seat tube length sizing. If your Bianchi is too large for you, then the Trek they're suggesting is waaaay to big. Fitting even the shortest stem may not even give you proper fit. Maybe Trek road frame geometry is not right for you.

Last edited by roadfix; 09-09-04 at 03:21 PM.
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Old 09-09-04, 03:16 PM
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Originally Posted by 2Rodies
Could you post what model of Bianchi and Trek you are looking at, my buddies shop sells both brands and I'll call him and get the scoop for you.
That would be excellent!

03 Bianchi Volpe (52)

04 Trek 5000 (54)

OK then what you said makes more sense...because I called the shop and they told me the length was 20 inches. If it's listed at Bianchi as 53 that makes more sense. Then the difference would only be .5 cm. But it still doesn't speak to the fact that he said my Bianchi was too big for me, then he's trying to put me on a 53.5.

gotta jet to class but I'll check with you later...thanks for your help!!

Last edited by cycleprincess; 09-09-04 at 03:21 PM.
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Old 09-09-04, 03:31 PM
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Originally Posted by cycleprincess
That would be excellent!

03 Bianchi Volpe (52)

04 Trek 5000 (54)

OK then what you said makes more sense...because I called the shop and they told me the length was 20 inches. If it's listed at Bianchi as 53 that makes more sense. Then the difference would only be .5 cm. But it still doesn't speak to the fact that he said my Bianchi was too big for me, then he's trying to put me on a 53.5.

gotta jet to class but I'll check with you later...thanks for your help!!
Here is the deal. The shortest TT length on the 5000 is going to be 52.5 cm on the XS or 50 cm frame. The 54cm frame has an effective TT length of 54.6 cm.

My buddy suggests looking at a 5200WSD the 51cm frame has a 50.5 cm TT length. He also said that you should go somewhere that has fit bike and get your propper measurements. Then get the best price you can on the 5200WSD and he'll try to beat it.
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Old 09-09-04, 05:03 PM
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Make sure you ask the bike shop that question. "Why is my bike too big and the one you want to sell me seems bigger?" And keeping asking questions until they throw you out in frustration or until you understand their logic!
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Old 09-09-04, 05:10 PM
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good luck finding the 5200WSD in stock anyplace to try out though.

sorry to be OT, but have you ridden the Specialized Roubaix Comp? it comes in a 49cm with a 51.8 tt. i've also seen them on sale at Hudson Trail Outfitters for $1750. compact frame would be good for a small girl and the price is right for a carbon monocoque frame w/ Ultegra.
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Old 09-09-04, 05:34 PM
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Originally Posted by cycleprincess
That would be excellent!

03 Bianchi Volpe (52)

04 Trek 5000 (54)

OK then what you said makes more sense...because I called the shop and they told me the length was 20 inches. If it's listed at Bianchi as 53 that makes more sense. Then the difference would only be .5 cm. But it still doesn't speak to the fact that he said my Bianchi was too big for me, then he's trying to put me on a 53.5.

gotta jet to class but I'll check with you later...thanks for your help!!
The Volpe is rather big for its size. (I know, that doesn't seem to make sense, but the "size" is just one part of the fit equation.) Contrary to what others have told you, however, Bianchi does measure seat tube c-t. What makes it big is the rest of the geometry and the top tube length.

The Volpe's standover height is 30.5" while the Trek's is 30.3. There's slightly more clearance on the Trek. Part of the reason the Volpe is high is that it has much fatter tires than the Trek.

The effective top tube length on the Volpe is 53.8cm and on the Trek it is 54.6cm. There, the Trek is actually longer.

I don't see any reason why the Trek should be considered a better fit than the Volpe if the Volpe is "too big". They are pretty close in size. I'm guessing they said "too big" before they measured you and their measurement said "54" so they put you on that without saying "you know, the Volpe might not be that bad after all."

Far be it from me to say that you shouldn't get a new bike, but maybe the Volpe does fit you. What feels "big"?
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Old 09-09-04, 06:15 PM
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Originally Posted by cycleprincess
Now explain this one!! Bianchi top tube length is 50.8, Trek top tube is 53.5.

I am super confused now.
A trek 54 WSD 5200 has a 52.8 TT, and the 2200/1500 wsd 54 has a 52.7 It's measured c -c of seattube to headtube. If the bianchi has a slopong TT, it has to be measured center of seatpost to center of headtube parallel to the ground, not along the sloping seattube.
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Old 09-09-04, 06:22 PM
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Originally Posted by cycleprincess
That would be excellent!

03 Bianchi Volpe (52)

04 Trek 5000 (54)

OK then what you said makes more sense...because I called the shop and they told me the length was 20 inches. If it's listed at Bianchi as 53 that makes more sense. Then the difference would only be .5 cm. But it still doesn't speak to the fact that he said my Bianchi was too big for me, then he's trying to put me on a 53.5.

gotta jet to class but I'll check with you later...thanks for your help!!
The actual TT length on the 52 velope is 53.8cm.That's out of the 03 bianchi catalogue. Measured parallel to the ground,center of sseatpost to center of headtube. The 54 trek 5200wsd is 52.8 or I cm shorter trek 05 catalogue.Standard trek 5000/5200 TT is listed as 54.6

Last edited by sydney; 09-09-04 at 06:30 PM.
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Old 09-09-04, 08:25 PM
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I ran into the same thing between a Cannondale Fem and a Trek WSD - The 50cm Cannondale fits great, and I think I was in between a 51 and 54 Trek, but neither fit quite right (it was a year ago, so I don't remember the specific sizes, but I do remember that they were much bigger on the Trek) Go figure. Try them all out, and then take up that offer to get you the best price!
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Old 09-09-04, 09:09 PM
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Did it feel better than your other bike when you test-rode it?
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Old 09-09-04, 10:37 PM
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OK...here is the update. No new bike for cycleprincess. You can all cry with me now! Hubby put the kibash on the new bike...too expensive, other priorities. Boohoo! This all came about when he said he wanted a bike too, now he is just thinking of fixing up his cheapo. Oh well, it was fun while it lasted. Hopefully next year. My Bianchi is great, I love her...so of course I'm totally not upset because I have a sweet bike already. I just got a little excited about maybe getting a new one too. At least I feel a little better knowing my bike really isn't too big. I mean, they measured me up for a 54 like I talked about, so the 52 should be about right. Truthfully, I rode over 100 miles in one day and I didn't feel any worse for the ware, so it must not be big enough to cause me pain. But I gotta tell you, man I'm so addicted. I know we need this new bed, but I'd rather have a new bike. I'd rather have a new bike then the counter tops I've been drooling over for the last 3 years. Too bad I'm not rollin in it like Donald Trump. I just saw the "fabulous life of DT" on VH1. That dude drops $14,000 on a suit. If I had cash like that I'd buy all yall a new bike!!
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Old 09-15-04, 05:54 PM
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Um, total newbie just thinking about buying a 1st bike but...isn't it easier to fit a longer top tube when the frame is bigger since the seat sits lower relative to the frame/handlebars so the handle bars are easier to reach for a given top tube length?
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Old 09-15-04, 06:20 PM
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Originally Posted by cam2000deluxe
Um, total newbie just thinking about buying a 1st bike but...isn't it easier to fit a longer top tube when the frame is bigger since the seat sits lower relative to the frame/handlebars so the handle bars are easier to reach for a given top tube length?
Yes. Also, head and seat tube angles make a big difference. I have three bikes nominally the same size, but they all fit differently because the top tube lengths and angles are different.
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Old 09-15-04, 06:29 PM
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Originally Posted by cycleprincess
No new bike for cycleprincess. Hubby put the kibash on the new bike... But I gotta tell you, man I'm so addicted. I know we need this new bed, but I'd rather have a new bike.
Hubby should sleep on the floor or with the dog and you should get a new bike.Simple solution.
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Old 09-15-04, 06:33 PM
  #25  
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Originally Posted by cam2000deluxe
Um, total newbie just thinking about buying a 1st bike but...isn't it easier to fit a longer top tube when the frame is bigger since the seat sits lower relative to the frame/handlebars so the handle bars are easier to reach for a given top tube length?
In addition to the good points of halfspeed, as a newbie you would also have to consider the following;

1. You'll have a much harder time when you have to put your feet on the ground and stand over the top tube (and you will have to at some point) - that's what is commonly referred to as stand-over height.

2. A too large frame both raises the center of gravity, compromising bike handling, and changes your body positioning and balance fore/aft.

3. A correctly sized frame will optimize both bike weight (just less material to haul around), handling, and minimize loss of power loss through torque/flex (depending on how you ride), although this is much less of an issue with modern frame materials/build techniques.
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