frame sizes

I will post the address to an online interactive programme tonight when I get home where you can determine what you require.

Keep those wheels spinning

Big H

Quoted post said:

Originally posted by cheveley
Excuse my ignorance, but what exactly does it mean if a bike is 54cm and what are the the rules of thumb for determining the "right" bike size? Is there a difference between mtb and road sizes?

It would also be interesting to know what size people are and what their frame size is!

much obliged in advance...........

Take a look at this web page for a starter:

http://www.peterwhitecycles.com/fitting.htm

Try the 'fit calculator' link on this web page to get you started. Understand that this website fit system is designed for people who race, and strong rec. riders.

http://www.competitivecyclist.com/

The 54cm dimm. you list refers to the length of the seat tube, and is a standard used to size bikes.

"Frame size refers to the length of the frame’s seat tube. Pro frames are measured along the seat tube in one of two ways, center-to-top (C-T) or center-to-center (C-C). C-T measures the distance from the center of the bottom bracket to the top of the top tube or seat lug. C-C measures from the center of the bottom bracket to the center of the top tube. Since C-T measures to a point higher on the frame, a frame measuring 55cm C-T would also measure roughly 53.5–54cm C-C, a difference of 1–1.5cm". From Colorado Cyclists

FWIW, I'm 5' 11" and ride a 57" frame. (33" inseam).

Or you could always go to a good reputable bike shop for a proper fit armed with your questions.

Why dont you guys write all the sizes in cm aswell?
Im 173 cm frame is 54 cm .

Quoted post said:

Originally posted by Author
Why dont you guys write all the sizes in cm aswell?
Im 173 cm frame is 54 cm .

12 in. = 1 ft. and 1 in. = 2.54cm

Because our school systems tend to only teach us metric for fun in the U.S. If you're in the sciences, or give a [censored], you know metric conversions in the U.S. (1.61 km/mi, 2.54 cm/inch, ~456 g/lb./kg, etc.), but otherwise we don't use metric. We only use it for Euro-sports like road cycling and skiing.

I use metric just to accomodate the bulk of the folks visiting the forum (and I'm a scientist, so it's easy).

Since our esteemed U.S. president has helped lessened the clout of many of our environmental laws to conditions similar to the 1960s and 70s, we may also revert to using biblical measurments like cubits, baths, and shekels. Sorry, guess this belongs in the "My Bloody Soapbox" section.

Quoted post said:

Originally posted by jmcmillanut
Since our esteemed U.S. president has helped lessened the clout of many of our environmental laws to conditions similar to the 1960s and 70s, we may also revert to using biblical measurments like cubits, baths, and shekels. Sorry, guess this belongs in the "My Bloody Soapbox" section.

now that's a soapbox i can agree with!! is there a bandwagon somewhere i can jump on?:p

incidentally, i bought an 'extra small' frame. any clue what that would be (in cm i quess)? yeah, i know i could measure and scratch my head and try to figure it out, but call me lazy. ("LAZY!!"😉

[QUOTE][i]incidentally, i bought an 'extra small' frame. any clue what that would be (in cm i quess)? yeah, i know i could measure and scratch my head and try to figure it out, but call me lazy. ("LAZY!!"😉 [/B][/QUOTE]

On the Gary Fisher page, an XS frame is 13 in. Use the formula above to figure out cm. Mtb and road frame measurements aren't the same (I've only seen mtb frames in inches).

[QUOTE][i]incidentally, i bought an 'extra small' frame. any clue what that would be (in cm i quess)? yeah, i know i could measure and scratch my head and try to figure it out, but call me lazy. ("LAZY!!"😉 [/B][/QUOTE]

On the Gary Fisher page, an XS frame is 13 in. Use the formula above to figure out cm. Mtb and road frame measurements aren't the same (I've only seen mtb frames in inches).

[QUOTE][i]incidentally, i bought an 'extra small' frame. any clue what that would be (in cm i quess)? yeah, i know i could measure and scratch my head and try to figure it out, but call me lazy. ("LAZY!!"😉 [/B][/QUOTE]

On the Gary Fisher page, an XS frame is 13 in. Use the formula above to figure out cm. Mtb and road frame measurements aren't the same (I've only seen mtb frames in inches).

People always say you have to try out the bike and frame size before buying, and yet people also rave about great internet prices.

Is it one or the other, or do you guys really go to the lbs to get fitted and then go home and order over the web?!???!??

Quoted post said:

Originally posted by Cipher


"Frame size refers to the length of the frame’s seat tube. Pro frames are measured along the seat tube in one of two ways, center-to-top (C-T) or center-to-center (C-C). C-T measures the distance from the center of the bottom bracket to the top of the top tube or seat lug. C-C measures from the center of the bottom bracket to the center of the top tube. Since C-T measures to a point higher on the frame, a frame measuring 55cm C-T would also measure roughly 53.5–54cm C-C, a difference of 1–1.5cm". From Colorado Cyclists

There are also frames measured C to top of an extended seattube, which can add several cm to the 'nominal' size without increasing the standover, tho the TT length is usually tipical for that 'size'.

Quoted post said:

Originally posted by pineapple
People always say you have to try out the bike and frame size before buying, and yet people also rave about great internet prices.

Is it one or the other, or do you guys really go to the lbs to get fitted and then go home and order over the web?!???!??

Some people get lucky. For many, a frame that is 'close' is good enough.Others know what they need.