Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

User Tag List

Reply
 
Thread Tools Search this Thread
Old 07-14-09, 11:05 AM   #1
jpl8910
Member
Thread Starter
 
Join Date: Jul 2009
Location: NY
Bikes:
Posts: 42
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
stem and handlebars question

Quick question: On JensonUSA stems are described by length, + or - degree and clamp size. I'm looking for a 1" stem so I would get a 25.4 clamp size correct? Then what would be the clamp size for the handlebar? Would any standard MTB handlebar work?

Thanks
jpl8910 is offline   Reply With Quote
Old 07-14-09, 11:14 AM   #2
jpdesjar
Guest
 
Bikes:
Posts: n/a
Mentioned: Post(s)
Tagged: Thread(s)
Quoted: Post(s)
You have to consider the steerer diameter as well as clamp diameter.
25.4 describes handlebar clamp
1" or 1 1/8" would describe steerer tube

Some bars have a 26.0 or even 31.8 clamp area.
  Reply With Quote
Old 07-14-09, 11:22 AM   #3
Steev
Senior Member
 
Steev's Avatar
 
Join Date: Jul 2005
Location: Backwoods of Ontario
Bikes:
Posts: 2,150
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Stems have a number of important dimensions.
1. The diameter of the steerer tube.
2. The diameter of the handlebar where it is clamped by the stem.
3. The reach (how far from the steerer to the bars).
4. The rise or the angle it makes with the centerline of the steerer tube.
Almost any quill stem (for threaded steerer) out there now-days is for a 1" steerer.
Most stems for threadless steerers are 1 1/8". Some come with shims for 1" threadless steerers.
Most MTB bars are either 25.4mm or 31.8mm clamp diameter.
Most road bars are either 26.0mm or 31.8mm clamp diameter, but there are exceptions.
Steev is offline   Reply With Quote
Old 07-14-09, 11:30 AM   #4
jpl8910
Member
Thread Starter
 
Join Date: Jul 2009
Location: NY
Bikes:
Posts: 42
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks for the replies guys. I have a 1" steerer so if I wanted a riser MTB handlebar then I should get a 1 1/8" stem with a shim with the appropriate clamp size for the handlebar. So clamp size on stems refers to the clamp that secures the handlebar.
jpl8910 is offline   Reply With Quote
Old 07-14-09, 11:32 AM   #5
jpdesjar
Guest
 
Bikes:
Posts: n/a
Mentioned: Post(s)
Tagged: Thread(s)
Quoted: Post(s)
You should get a 1" to fit your steerer and then match up the handlebar clamp area to the clamp diameter of the stem. There are shims available to make bars fit in stems.

Edit-I think you got the idea, shim for your steerer is correct.
  Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 04:13 AM.