Threadless stem size
07-26-02 | 10:18 AM
#1
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Joined: Jun 2002
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From: Washington, DC/ Köln, Germany
Bikes: Bianchi, Olmo
Threadless stem size
I have a bike with a 1" steer tube on a carbon fork.
I want to replace the stem but am not sure if I need to buy a size of 1" or something bigger. Im looking at an ITM 'big one" and found a good price online but dont know which size I need....Ive heard conflicting things about the way the sizes are listed sometimes...
so if the steer tube is 1", what size threadless stem do I need?
Can someone help? Thanks.
I want to replace the stem but am not sure if I need to buy a size of 1" or something bigger. Im looking at an ITM 'big one" and found a good price online but dont know which size I need....Ive heard conflicting things about the way the sizes are listed sometimes...
so if the steer tube is 1", what size threadless stem do I need?
Can someone help? Thanks.
07-26-02 | 10:27 AM
#3
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Joined: Jul 2002
Posts: 6,956
Likes: 6
You need a 1" threadless stem for your 1" threadless fork. With threadless forks, the nominal size is also the size that the outside of the steer tube and the inside of the stem use. (edit: the shim setup mentioned by pokey works good too)
There's potential for confusion with the terminology for threaded systems, since a 1" threaded system uses a quill stem that fits the inside, not the outside, of the fork, and thus is smaller than 1" but is still nominally called a 1" stem because it fits the fork with the 1" O.D. steer tube.
There's potential for confusion with the terminology for threaded systems, since a 1" threaded system uses a quill stem that fits the inside, not the outside, of the fork, and thus is smaller than 1" but is still nominally called a 1" stem because it fits the fork with the 1" O.D. steer tube.
07-26-02 | 11:06 AM
#4
Thread Starter
Senior Member
Joined: Jun 2002
Posts: 584
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From: Washington, DC/ Köln, Germany
Bikes: Bianchi, Olmo
Originally posted by mechBgon
You need a 1" threadless stem for your 1" threadless fork. With threadless forks, the nominal size is also the size that the outside of the steer tube and the inside of the stem use. (edit: the shim setup mentioned by pokey works good too)
There's potential for confusion with the terminology for threaded systems, since a 1" threaded system uses a quill stem that fits the inside, not the outside, of the fork, and thus is smaller than 1" but is still nominally called a 1" stem because it fits the fork with the 1" O.D. steer tube.
You need a 1" threadless stem for your 1" threadless fork. With threadless forks, the nominal size is also the size that the outside of the steer tube and the inside of the stem use. (edit: the shim setup mentioned by pokey works good too)
There's potential for confusion with the terminology for threaded systems, since a 1" threaded system uses a quill stem that fits the inside, not the outside, of the fork, and thus is smaller than 1" but is still nominally called a 1" stem because it fits the fork with the 1" O.D. steer tube.
