1 1/8 quill stem to fit 1 1/14 steerer shim?
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We_are_Stevo
Old School Grand Master
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Stevo...Isn't that the steerer outside dimensions, rather than the internal/quill dimensions? Doesn't a shim need to be 28.6 OD, 25.4mm ID?
I have plenty of 0.058" wall 28.6mm (1 18"OD) alu tubing...pretty close at 25.6 mm internal.
I can cut the slot, so the wedge works..How long do you need? 100mm ish?
Yours for £3 incl post.
All the best,
I have plenty of 0.058" wall 28.6mm (1 18"OD) alu tubing...pretty close at 25.6 mm internal.
I can cut the slot, so the wedge works..How long do you need? 100mm ish?
Yours for £3 incl post.
All the best,
We_are_Stevo
Old School Grand Master
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danson67":22479r64 said:
...if he wanted to fit a 1" quill into a 1 1/8" steerer yes, but I do believe he wants to fit a 1 1/8" quill into a 1 1/4" steerer and whilst the link is to a seat post shim, the dimensions are close enough for it to work...
...or am I missing something? :?
Stevo:
it needs to be 1/8" smaller all round:
The inside diameter (ID) of his 1 1/4" (31.8mm) outside diameter (OD) steerer will be 1 1/8" (28.6mm). The ID of a 1 1/8" (28.6mm) OD steerer, for which the stem is made for, is 1" (25.4mm).
Therefore he needs something to bridge the 28.6mm ID of that fat steerer and the 25.4mm OD of the undersized stem quill to fit inside it.
If his stem quill was 28.6mm OD there wouldn't be a problem.
That seatpost shim is 1 1/4" (31.8mm) OD, 1 1/8" (28.6mm) ID, same dimensions as the fat steerer tube in question.
To summarise:
1 1/4" steerer tube = 1 1/4" (31.8mm) OD, 1 1/8" (28.6mm) ID & stem quill OD to fit
1 1/8" steerer tube = 1 1/8" (28.6mm) OD, 1" (25.4mm) ID & stem quill OD to fit
1" steerer tube = 1" (25.4mm) OD, 7/8" (22.2mm) ID & stem quill OD to fit
All the best,
Yes, I think you are...
it needs to be 1/8" smaller all round:The inside diameter (ID) of his 1 1/4" (31.8mm) outside diameter (OD) steerer will be 1 1/8" (28.6mm). The ID of a 1 1/8" (28.6mm) OD steerer, for which the stem is made for, is 1" (25.4mm).
Therefore he needs something to bridge the 28.6mm ID of that fat steerer and the 25.4mm OD of the undersized stem quill to fit inside it.
If his stem quill was 28.6mm OD there wouldn't be a problem.
That seatpost shim is 1 1/4" (31.8mm) OD, 1 1/8" (28.6mm) ID, same dimensions as the fat steerer tube in question.
To summarise:
1 1/4" steerer tube = 1 1/4" (31.8mm) OD, 1 1/8" (28.6mm) ID & stem quill OD to fit
1 1/8" steerer tube = 1 1/8" (28.6mm) OD, 1" (25.4mm) ID & stem quill OD to fit
1" steerer tube = 1" (25.4mm) OD, 7/8" (22.2mm) ID & stem quill OD to fit
All the best,
The only other issue is that quill stem shims tend to be a tad longer than the average seatpost shim so you will need to ensure that it is longer than your quill otherwise the wedge will not tighten.
I know that this is the wrong size but sjs made some great shims for this purpose and they are about 150mm long.
http://www.sjscycles.co.uk/alloy-shim-t ... s-prod430/
I have one that is a 1" to 1 1/4" and its also 150mm long rather than the standard 90mm that seat shims tend to be
I know that this is the wrong size but sjs made some great shims for this purpose and they are about 150mm long.
http://www.sjscycles.co.uk/alloy-shim-t ... s-prod430/
I have one that is a 1" to 1 1/4" and its also 150mm long rather than the standard 90mm that seat shims tend to be
We_are_Stevo
Old School Grand Master
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DOH! 
SWMBO is right, I should get off the computer and get to bed at a decent time!
SWMBO is right, I should get off the computer and get to bed at a decent time!
