handlebar dimensions - help needed

I can find lots of dimensional data on the outside diameter of handlebars at the point where they
are clamped by the stem.

I have been unable to find the inside and outside diameters of handlebars where they are NOT clamped
by the stem (off the bulge if there is one).

What outside diameters must a brake lever clamp accomodate?

What inside diameters must a bar end accomodate?

I'd appreciate any data or referral to a source. Please reply to henox@icycle.net.

TIA,

Hugh Enox

The only time I have seen dimension requirements noted as far as handlebars go os for the stem/bar
interface. My guess is that most other accoutrements (brakes, shifters, bar ends, etc.) have enough
adjustability to accommodate most bar diameters.

In short, it may not matter :-3)

May you have the wind at your back. And a really low gear for the hills! Chris

Chris'Z Corner "The Website for the Common Bicyclist": http://www.geocities.com/czcorner

Hugh Enox inquired:

> I can find lots of dimensional data on the outside diameter of handlebars at the point where they
> are clamped by the stem.
>
> I have been unable to find the inside and outside diameters of handlebars where they are NOT
> clamped by the stem (off the bulge if there is one).
>
> What outside diameters must a brake lever clamp accomodate?
>
> What inside diameters must a bar end accomodate?
>
> I'd appreciate any data or referral to a source. Please reply to henox@icycle.net.

Most important bicyle dimensions are listed in my Bicycle Glossary. The relevant entry for you is:

http://sheldonbrown.com/gloss_h.html#handlebar

There is no standardization for inside diameter, this varies considerably according to the material
chosen for the handlebar.

Sheldon "http://sheldonbrown.com/glossary" Brown
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henox@aol.com (HENOX) wrote:

> I can find lots of dimensional data on the outside diameter of handlebars at the point where they
> are clamped by the stem.
>
> I have been unable to find the inside and outside diameters of handlebars where they are NOT
> clamped by the stem (off the bulge if there is one).

Flat and riser bars are all 22.2mm.

Aluminum drop bars are almost always 23.8mm. So are Nitto Mustache bars.

Steel drop bars are usually but not always 22.2mm.

Most BMX bars are 22.2mm, but a few are 25.4mm.

Chalo Colina