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Fixed gear size ??

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Old 12-09-08, 01:50 PM
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Fixed gear size ??

I am thinking about building a fixed gear. I have a 56cm road bike and I was wondering, should I look for another 56 for the fixed or should I maybe get one a lil smaller?
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Old 12-09-08, 01:56 PM
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Haha, okay, before someone destroys you for asking this question ...

Size is obviously related to your own size personally. No one can tell you what size bike you need without knowing your proportions.

That having been said, if you ride a 56cm and its too big for you, then maybe go for a 53cm.

Fixed vs. geared makes no sizing difference, in my experience. Same size in both works fine for me.
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Old 12-09-08, 02:13 PM
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That is what I thought but most of the fixed gear I have seen around me have seats that seem really high. I didn't know if it was normal to ride a smaller fixed or not. Thanks for not flaming me!!
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Old 12-09-08, 02:23 PM
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What is your hat size? take that number multiply by 4 and divide by pi and thats the magical fixed gear bike size for you
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Old 12-09-08, 02:43 PM
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it all has to do with the geometry of the frame....many newer frames have sloping top tubes & this is why you may see some extra seatpost.......or people dont get the right size bike for themselves..... or they think having their ass way up in the air is "aero"

your most important measurement should be the top tube, not the seat tube. measure the top tube on your bike now (if it's comfortable for you) & get one with a similar measurement, the seattube should be pretty close to what you need if the toptube length is right. your LBS can also help you out with this as well, but make sure to buy something when you go in (like a tube, or gloves) they will help a customer more than a dude coming in for free advice.

good luck
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Old 12-09-08, 02:54 PM
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Originally Posted by cobrabyte
it all has to do with the geometry of the frame....many newer frames have sloping top tubes & this is why you may see some extra seatpost.......or people dont get the right size bike for themselves..... or they think having their ass way up in the air is "aero"

your most important measurement should be the top tube, not the seat tube. measure the top tube on your bike now (if it's comfortable for you) & get one with a similar measurement, the seattube should be pretty close to what you need if the toptube length is right. your LBS can also help you out with this as well, but make sure to buy something when you go in (like a tube, or gloves) they will help a customer more than a dude coming in for free advice.

good luck
Thanks! I didnt think there would be a difference but I wanted to know. I am having a hard time finding a bike to use local so I might have to buy one online.(eventhough I don't would rather not) I didn't want to get a 56 like my road bike and it be a little too big.
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Old 12-09-08, 03:19 PM
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If it's a track bike/geo, go a cm smaller than your road bike(assuming it's a proper fit). If it's more road oriented geo, then same size.
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Old 12-09-08, 03:23 PM
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Smaller is better for track bike frames.

=)


This is more important when you are using drops, and the reach may be quite far.
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Old 12-09-08, 03:25 PM
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Originally Posted by bboysubhuman
If it's a track bike/geo, go a cm smaller than your road bike(assuming it's a proper fit). If it's more road oriented geo, then same size.
Why? I would like to understand this so please explain. Thanks.
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Old 12-09-08, 03:31 PM
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I ride a track bike with 54.5cm top tube which fits like another bike I have with 56cm top tube. The reason the effective reach is the same with these two frames is that the track bike has steeper angles.
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Old 12-09-08, 03:42 PM
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Originally Posted by Live2Die
What is your hat size? take that number multiply by 4 and divide by pi and thats the magical fixed gear bike size for you
8.913 for me then. That is a relief, I have been riding bikes that have been WAY too big for too long then.
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Old 12-09-08, 03:45 PM
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Originally Posted by spaceballs
8.913 for me then. That is a relief, I have been riding bikes that have been WAY too big for too long then.

(7.25 * 4) / 3.14 = 9.23566879 damn, I need a new bike too
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Old 12-09-08, 04:53 PM
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Glad I could help...
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Old 12-09-08, 05:11 PM
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As of now I am looking for an old 56 becuase I am not gonna put drops on it and it will be road use only.
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Old 12-09-08, 06:38 PM
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You gotta convert to metric. Multiply that number by 25.4
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Old 12-09-08, 07:35 PM
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touche
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