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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 09-30-12, 05:50 AM   #1
808hawai
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Frame sizing

Aloha guys.

Just have some Qs to ask. I'm 5'9 and started off with a 54cm visp, which felt okay. Sold that frame and got a 52cm leader 721 frame. I know it's a bit small for my height but it felt good, didn't really feel too cramped. Anyways. I'm deciding to pick up a cervelo p2t track frameset drone someone local here in hawaii. But its also a 52cm frame. Just wondering if I should picl it up, or should I find a frame size 54cm? I'm afraid that if I get it, it won't feel the same as my 52cm leader 721.
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Old 09-30-12, 05:53 AM   #2
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use a fitment calculator before purchasing a frame if youre unsure about what size you should purchase, it will save you money.
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Old 09-30-12, 06:55 AM   #3
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Look at the geometry charts for both and see how close they are. I don't know much about leaders but I've heard chatter about them having very long top tubes so it would be worth comparing.

Leader 721/25/35


Cervelo P2T Track

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Old 09-30-12, 08:27 AM   #4
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Sold that frame and got a 52cm leader 721 frame.
Leader never made a 52cm 721.
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Old 10-02-12, 07:45 PM   #5
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Okay, found out my 721 was a 51cm frame. Bit it felt comfy for me. And I'm 5'9. The guy I'm buying the cervelo p2t frame from said the top tube is 54cm and seat tube is 53.5cm. Which makes the frame what size?

Does anyone know the top tube length and set tube length for the 51cm 721 frame? I've alread sold my frame so I can't measure
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Old 10-02-12, 07:55 PM   #6
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I honestly can't imagine someone 5'9" being comfortable on a 51cm 721. I'm 5'10" and my 725 - which has the same geo - was a 55 and it fit me really well.

Based on the info above, the Cervelo is even smaller.
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Old 10-02-12, 07:55 PM   #7
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EpicShwinn posted the geometry charts for the 721 already.
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Old 10-02-12, 08:11 PM   #8
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Darn, so the 52cm cervelo won't fit me then?
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Old 10-02-12, 08:16 PM   #9
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Why havent you used the fit calculator yet?
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Old 10-03-12, 09:02 AM   #10
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Why do you want to ride such a dinky frame anyways?
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Old 10-03-12, 09:05 AM   #11
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Why havent you used the fit calculator yet?
Because Jaytron wasn't around to post the link.
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Old 10-03-12, 09:06 AM   #12
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Why havent you used the fit calculator yet?
Maybe because a link hasn't been posted and nobody can do anything for themselves.

Here:

http://www.competitivecyclist.com/za...LCULATOR_INTRO
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Old 10-03-12, 10:19 AM   #13
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Quote:
Originally Posted by 808hawai View Post
Aloha guys.

Just have some Qs to ask. I'm 5'9 and started off with a 54cm visp, which felt okay. Sold that frame and got a 52cm leader 721 frame. I know it's a bit small for my height but it felt good, didn't really feel too cramped. Anyways. I'm deciding to pick up a cervelo p2t track frameset drone someone local here in hawaii. But its also a 52cm frame. Just wondering if I should picl it up, or should I find a frame size 54cm? I'm afraid that if I get it, it won't feel the same as my 52cm leader 721.
Unfortunately, you are comparing slightly different frame types. Cervelos have road TT geometry. Slack head tub angle, slack fork rake, steep seat tube angle, small head tube. You will just have to build the bike and see.

There is no real way to "do the math" and figure out how it will feel.

If the bike is currently built by the current owner, ask him/her if you can ride it first. If not, it's a gamble.
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Old 10-06-12, 07:42 PM   #14
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Sorry for the late post. And I appreciate everyone's input. But I went an got the frame yesterday. It came with sugino75 bb and cranks, Chris king headsets, deda stem, and San Marco magma saddle. And I paid 720 for everything. I find it a steal, and lucky I got the frame. Lastnight I threw on my clipless pedals, chub hub laced to h plus sons, and front wheel to do a fit ment. And to my surprise everything felt good. Added my modolo track drops and honestly, when in the drops it doesn't hurt my neck as how the leader 721 did. So today before work I picked up a 50t fsa chainring and chainring bolts. Then will give it a est ride when I get home.


What do you guys think so far?


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