Accessories Bicycles Parts Specials Tools

Sheldon Brown's Bicycle Handlebar and Stem Dimension Crib Sheet


find us on FB

Spoke Divider
Handlebar dimensions
Stem Clamp
Size
Grip Area
Size
Application
22.2 mm 7/8" 22.2 mm 7/8" Steel bars. Mainly BMX, older Mountain bike bars.
23.8 mm 15/16" 22.2 mm 7/8" Obsolete British size for steel handlebars, common on older 3-speeds.
This size was also used for older British steel drop bars.
25 mm 23.5 mm Obsolete French size.
25.4 mm 1" 22.2 mm 7/8" Standard I.S.O. size, used on the vast majority of newer bicycles with upright handlebars.
This size was formerly common for steel drop bars.
25.4 mm 1" 23.8 mm 15/16" Standard I.S.O. size, used on most bicycles with drop handlebars.
Also used on older British aluminium upright handlebars.
25.8 mm 23.8 mm 15/16" Unofficial in-between size used by some Italian handlebar makers for handlebars designed to be usable in either ISO (25.4) or Italian (26.0) size stems.
26.0 mm 23.8 mm 15/16" Italian standard for drop bars, other bars made to fit Italian stems and some high-end aftermarket drop bars.
This is sometimes incorrectly called "road" size.
26.4 mm 23.8 mm 15/16" Older Cinelli and Cinelli copies. Cinelli changed over to 26.0 mm in 1998.
27 mm 23.8 mm 15/16" Titan (obsolete).
31.8 mm 1 1/4" 23.8 mm 15/16" Road oversized.

Spoke Divider

Spoke Divider

More cribsheets: Click here!

This page is intended as a quick reference primarily for the benefit of folks in the bicycle business. Feel free to print it out, but please don't reproduce it without proper credit and linkage.

Spoke Divider

Spoke Divider

Articles by Sheldon Brown and Others


Accessories Bicycles Parts Specials Tools

Copyright © 2006, 2008 Sheldon Brown

Harris Cyclery Home Page

If you would like to make a link or bookmark to this page, the URL is:
http://sheldonbrown.com/cribsheet-handlebars.html

Last Updated: by Harriet Fell