Stem clamp sizing question
09-28-10 | 05:47 PM
#1
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From: Rhode Island, USA
Bikes: 2004 Specialized Allez
Stem clamp sizing question
I need to buy a smaller stem but I'm a bit confused on the stem clamp sizing. I have an 04 Allez. The steerer tube is 1 1/8" so I know I need a 28.6mm clamp on that end but I'm a little uncertain of what size clamp I need on the handlebar end.
I just have the generic Specialized comp handlebars that came on the bike but I don't know if they are 26 or 31.8mm. I measured around the handlebar clamp area and I got about 8.5cm so I know that can't be right.
How do I find out what size I need?
I just have the generic Specialized comp handlebars that came on the bike but I don't know if they are 26 or 31.8mm. I measured around the handlebar clamp area and I got about 8.5cm so I know that can't be right.
How do I find out what size I need?
09-28-10 | 05:56 PM
#2
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Joined: Sep 2005
Posts: 28,387
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From: Santa Barbara, CA
Bikes: Specialized Tarmac SL2, Specialized Tarmac SL, Giant TCR Composite, Specialized StumpJumper Expert HT
It's diameter not circumference.
But an easier way to tell than measuring, is are the ends the same diameter as the middle? ends, and the drops where the shifters attach are all the same size, the only only difference is in the clamping area. So if the clamping area is bigger, then you have oversized bars...
But an easier way to tell than measuring, is are the ends the same diameter as the middle? ends, and the drops where the shifters attach are all the same size, the only only difference is in the clamping area. So if the clamping area is bigger, then you have oversized bars...
09-28-10 | 06:00 PM
#4
Thread Starter
Senior Member
Joined: Aug 2010
Posts: 110
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From: Rhode Island, USA
Bikes: 2004 Specialized Allez
It's diameter not circumference.
But an easier way to tell than measuring, is are the ends the same diameter as the middle? ends, and the drops where the shifters attach are all the same size, the only only difference is in the clamping area. So if the clamping area is bigger, then you have oversized bars...
But an easier way to tell than measuring, is are the ends the same diameter as the middle? ends, and the drops where the shifters attach are all the same size, the only only difference is in the clamping area. So if the clamping area is bigger, then you have oversized bars...
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