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Bike fiting nightmare

Old 06-29-10, 06:38 PM
  #1  
noobpone
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Bike fiting nightmare

Help. I'm looking at used bikes online and can't figure out how to narrow the bikes down.

I'm 6'4 with a 34' tape measured inseam maybe a 35. I've been told by a good friend that he's 6'1 and uses a 60cm bike so I need to took at 62's.

I've been told by my LBS on different occasions that I could use a 58cm and then a 60cm.

I have to get used because I'm a student who is 26 and money is tight. I'm test riding a cannondale('05 or '07) caad7 r700 tomorrow 60cm. It is gently ridden and the price is $600, i'm in nyc where the bikes are pricier so this seems like a good dealWhat should I look for to see if the bike fits right.

I'm excitied because this is the best deal by far that i've come across, but on the flip side I don't want to waste 600 bucks on a bike that doesn't fit. As an example i've seen '10 spec. allez sports go for 750 firm and an '08 giant defy 3 for 600 bucks. both have sora shifters as opposed to 105's on the 'DALE.

Input asap, please!
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Old 06-29-10, 06:41 PM
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60 cm definitely. If not, a 62 cm. For fit, look for:
*Am I stretched out uncomfortably and reaching far for the handlebars?
*Is there alot of seat post showing?
*Am I too close for comfort, like my knee's might actually hit the handlebars....?
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Old 06-29-10, 06:43 PM
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62cm
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Old 06-29-10, 06:47 PM
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Originally Posted by noobpone View Post
34' tape measured inseam
being pedantic but
34' = 34 feet
34" = 34 inches

I think you're going to have to go custom
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Old 06-29-10, 06:54 PM
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If you really do not know how to fit yourself, or if this is your first road bike, there is infinite value in being fit. This may mean buying used or new from a LBS, however proper fit really isn't a shot in the dark. Your cycling experience will be so much more pleasant if fit properly.
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Old 06-29-10, 07:08 PM
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If you enjoy the sport, it won't be your last bike.
And if it's a deal for $600, you will be able to unload it for that when you sell/upgrade. (I always recommend used for first road bike)

As for fit, it will change as you accumulate miles. It should be comfortable for you now, but even a "pro" fit IMO wouldn't be worth much (especially if $$ is tight) as what is comfortable and efficient for you now, may not be 4000miles from now.

Ride the bike for the weekend with the option to return if possible.
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Old 06-29-10, 07:14 PM
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Definitely need a 60 or 62. I'm 6'0 and I ride a 57.
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Old 06-29-10, 07:15 PM
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hey, it was a typo! But that bike would be awesome
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Old 06-29-10, 07:17 PM
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so how much space between the crotch and top tube is ok?
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Old 06-29-10, 07:22 PM
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And is it ok to be on my tippy toes, or must I claer the top tube with flat feet?
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Old 06-29-10, 07:22 PM
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I'm 6'4" w/ a 34 inch pants inseam (I forget my cycling inseam) and ride a 61 and a 62.5 and have rented and been comfortable on a 60. Important thing for me is being able to get the drop right and an effective top tube + stem length ~ 70 cm.

Last edited by Herbie53; 06-29-10 at 07:39 PM.
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Old 06-29-10, 07:32 PM
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There's no way to tell without sitting on the bike. I am 6'1" and ride a 56cm, could comfortably ride a 58cm, but never a 60cm on Trek, Fuji, Specialized or Cannondale. I have ridden these and cannot speak for other brands. A 21" Giant MTB fits fine, and have built a 20" MTB which is a tad too small. There's so much variance not only in manufacturer, but in people virtually the same size as you.
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Old 06-29-10, 07:38 PM
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Originally Posted by noobpone View Post
And is it ok to be on my tippy toes, or must I claer the top tube with flat feet?
As long as you clear the top tube while pedaling, you're OK. Try a bunch of bikes to get an idea of what reach you need.
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Old 06-29-10, 07:50 PM
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I'm the same size as you (almost identical) and ride a Cannondale 61cm Very comfortably. I can't imagine you on a 58cm.
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Old 06-29-10, 07:50 PM
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What? If you don't clear the top tube when you're dressing for cycling (shoes and shorts), you WILL eventually smash your nuts. You need an inch of clearance.
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Old 06-29-10, 07:55 PM
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Originally Posted by noobpone View Post
And is it ok to be on my tippy toes, or must I claer the top tube with flat feet?
If you have a 35" inseam you will clear a the top tube of 60cm Cannondale with no trouble. You might need a 120 or 130mm stem, but it'll work.
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Old 06-29-10, 07:58 PM
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I'm 6'1" and a Specialized dealer fitted me to a 58" Roubaix. Later another fitter told me that I'm on the right size.
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Old 06-29-10, 08:50 PM
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thanks everyone for the input, it's seriously helping my decision making.
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Old 06-29-10, 09:15 PM
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I doubt you need a 62 cm. I'm 6'5" with a 36.2" inseam. I thought for sure I'd need the biggest bike available, so I bought a 64 cm. It's way too big for me, I later had to buy an 80 mm long stem (and no, that doesn't solve all the problems of a poor fit). The bike fit I got recommended a 61 cm frame. I'm mostly torso though.
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Old 06-29-10, 09:57 PM
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The 60 might work for you, but you have to consider the top tube length and the height of the bars, too.
I'm almost your size and I have 62, 63, and 64 road frames. The 63 is a CAAD5 is actually a little long in the top tube, but the 64 frame from a different maker fits fine.
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Old 06-29-10, 09:58 PM
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it don't matter to much unless your performance riding, cannondales may have shorter seat tubes than they say. . I (6' 34.5inseam) can ride on 56-60 depending on the geometry and stems. From the looks of it, you have a normal torso so you should be fine with either 58 or 60. The right stem will help dial it all in.
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Old 06-29-10, 10:10 PM
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Originally Posted by noobpone View Post
so how much space between the crotch and top tube is ok?
none if your a child, you'll grow into it.
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Old 06-29-10, 10:56 PM
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One thing you can do is go to a bike store and test ride some bikes; when you find one that feels really really good measure the standover height, seat tube, effective top tube, and stem length. I know that these measurments can all feel different with different designs but it can give you a good idea and get you closer to what feels right. Sometimes you can find geometry charts for bikes and compare the measurements.
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Old 06-30-10, 12:46 AM
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Originally Posted by halfspeed View Post
If you have a 35" inseam you will clear a the top tube of 60cm Cannondale with no trouble. You might need a 120 or 130mm stem, but it'll work.
this...I'm 6'4 and 34" cycling inseam and ride a caad9 with a 120mm stem I could of gotten an 63 but then the bars would be too high 19 vs 21 cm HT length.

also the 63 has a slacker seat tube angle the TT is only .5cm longer.

Chad
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Old 06-30-10, 01:38 AM
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I have a 35 inch inseam. I generally ride 60cm or 61cm frames, but I have one 58cm that has slightly different geometry and fits fine. I'd be surprised if you couldn't tweak a 60cm frame to fit you, but it's impossible to offer definitive advice without seeing you on the bike.
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