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Bikes and frame sizing


ec437

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i'm like 5'9 but i have kinda short legs, about a 30 inch inseam, i go with 48-50 cm depending on the frame geometry, you'll prolly want something similar. you should be able to comfortably stand over the frame, and set the seat hight so that your knee is just slightly bent at the bottom of the pedal stroke.

 

just like a bass you'll ahve to test drive a couple diff models to find the right fit and any worthwhile bike shop guy will be willing to spend an afternoon explaining things to you

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go to your local bike shop and tell them your price range. if the store is decent then the sales person should know how to size a bike for you. generally for a dude there should be about an inch or two of space between the cross bar and his "junk" when standing over the frame with your feet flat on the ground or you should be able to touch your toes on the pavement when you straddle over the seat.

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There are quite a few factors that go into properly sizing a bike, not the least of which is frame technology. I'm 5'7" w/30" inseam, longish trunk w/short arms and I ride a medium Giant TCR (compact frame) with an 80mm stem. Haven't ridden a traditional frame in years but I'd probably be on a 54 cm frame. Take a trip down to your local bike shop, tell then you're interested in a bike and let them size it for you so that you can take a test ride.

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the bike shops here charge you for fitting
:mad:
:mad:
:mad:
:mad:

If you walk into a Specialized shop, have your eye on a Roubaix/Tarmac/whatever, and tell them that you'd like to take it for a test spin, they'll do a quick and dirty fit for you.

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the bike shops here charge you for fitting
:mad:
:mad:
:mad:
:mad:

 

Most shops charge for a complete fitting (where you get measured for everything - top tube, seat height, frame size, etc.), but they should do at least an inseam measurement for free.

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I picked up my first road bike over the summer with my tax refund (whoo!). Giant OCR-3. Great intro level roadbike, I used it over the summer to ride 4 miles round trip to class and back. I'm about your size (5'6, same inseam, a bit lighter) and the bike is wonderful. Pricing was right, too. The frame is a bit weird, but if you try them, it's the small frame you'd need to look at.

 

EDIT:

 

The shop i went to gave me a free fitting and a test ride...

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go to your local bike shop and tell them your price range. if the store is decent then the sales person should know how to size a bike for you. generally for a dude there should be about an inch or two of space between the cross bar and his "junk" when standing over the frame with your feet flat on the ground or you should be able to touch your toes on the pavement when you straddle over the seat.

 

 

junk hanging or all bundled up in tightie whities?

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Most shops charge for a complete fitting (where you get measured for everything - top tube, seat height, frame size, etc.), but they should do at least an inseam measurement for free.

 

 

I'm sorry but that's BS. If you go into a bike shop waving green cash to buy a bike it's their job to set it up for you... for free. Anything less and you should take your business elsewhere. Buying a bike from Walmart is one thing, but a real bike shop? That's just petty gouging. It takes 10 minutes to set up a bike, if they won't do that for your money, somewhere else will. They only charge it because they can, most people pay it.

 

I'll bet you your bike versus mine that if you treat their setup fee as a deal breaker for you, they'll set it up for free every time... after you make it known its a deal breaker at least.

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I'm sorry but that's BS. If you go into a bike shop waving green cash to buy a bike it's their job to set it up for you...
for free
. Anything less and you should take your business elsewhere. Buying a bike from Walmart is one thing, but a real bike shop? That's just petty gouging. It takes 10 minutes to set up a bike, if they won't do that for your money, somewhere else will. They only charge it because they can, most people pay it.


I'll bet you your bike versus mine that if you treat their setup fee as a deal breaker for you, they'll set it up for free every time...
after
you make it known its a deal breaker at least.

 

 

The bike shops will fit you to a bike, and set it up for free. What they charge for is to have the complete fitting. That's when you ride the stationary bike that is ultra-adjustable with millimeter markings on all the tubes. They measure everything, rather than just the inseam (e.g., torso length, foot length, arm length, etc.) They measure you, adjust the stationary bike, watch you pedal, measure, adjust again, repeat until they've found your perfect adjustment for your riding style and type of bike( mountain, road, cruiser, etc.). I've never had it done, and it takes awhile. Most people don't need that kind of fitting just to pick out a bike.

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Most people don't need that kind of fitting just to pick out a bike.

No but it can give someone a rough idea of what size of frame to buy if they're looking to buy used. After that, it's about tweaking seat height/position, stem length and height, etc...

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