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Thomson stems(21 posts)

Thomson stemspdg60
Jan 28, 2004 12:54 PM
Do they manufacture a "shim" which allows one to use their 1 1/8" stems w/a 1" steerer?

Also, if anyone else knows of anything similar I'd appreciate the input.

In a nutshell, I want to use 1" or 1 1/8" threadless stem on a threaded 1" steerer.

Thanks in advance.
use your computer...C-40
Jan 28, 2004 1:11 PM
From the Thomson website,

Q - Can I use a shim with the Thomson stem?
A - Only use the shim supplied by Thomson. The shim is sold as an accessory and not included with the Thomson stem. Most shims are too short, which will not allow the stem to clamp properly. Also, the standard one slit shims will not tighten properly to maintain head set tightness. Thomson shims are available through your local bike store.
I didpdg60
Jan 28, 2004 1:20 PM
and found that FAQ.

Appreciate the help but, as mentioned, my steer tube is threaded and that did not answer the question.

I recall some talk of a "shim" that allows a threadless stem to be used with a threaded steerer.

Sorry if the question was unclear.
I'll conitnue to use my computer as well:-)

Thanks again.
Threadless adapter?Dave Hickey
Jan 28, 2004 1:41 PM
If you want to use a threadless stem with a threaded steerer, Cinelli and Profile design both make threadless adapters.
Is this what you're looking for?Dave Hickey
Jan 28, 2004 1:47 PM

The stem doesn't come with the adapter. It's basically a stepped tube the fits in the steerer that allows you to use a threadless stem
Is this what you're looking for?pdg60
Jan 28, 2004 1:58 PM
That's what I was looking for...

Looks like I'll be ordering a custom Salsa 1" quill, eh?
Yes, a much better plan.

Thanks for the input fellas and the link Dave.
Jan 28, 2004 2:05 PM
I've been trying to buy a 120mm Salsa quill stem for 2 months now with no luck. I think QBP may be scrapping them. Hit as many shops as you can and have them order one from QBP and see if maybe they'll start making them again.

This is what the adapter looks like with a real stem (not a crappy upright one):
Jan 28, 2004 2:55 PM
I emailed Pepperman at Salsa and his reply was that they still do custom and it wouldn't be a problem (I requested a 130, negative rise, 1" quill) the only caveat being that the order must come from a bike shop.

Wouldn't the bike shop just be calling QBP, as you mention?

That adapter doesn't look bad at all with a real stem.

All this because I need a new headset...
Is this what you're looking for?cadenza
Jan 28, 2004 4:43 PM
You can say that again.
After buying a Cinelli adapter and an ITM "the big one" because I wanted to try 14cm (very rare size in quills), I've decided it's so ugly (and there's only ~10mm up/down adjustment) that I'm going back to quill stems. They're only 13cm but I can hardly feel the diff with 14cm and they look sharp, and there's easily ~60mm of adjustment and no spacers to buy and mess with.
I've got a Masi and a DeRosa 15 and 10 years old and threadless stems don't belong on that kind of bike.
Threadless adapter?laffeaux
Jan 28, 2004 1:54 PM
I'm currently using a Topo adapter on my road bike which is a 1" threaded quill adapter, and uses 1 1/8" threadless stems. It works fine.

Since the availabilty of high-end quill stems is rapidly approaching non-existent, owning one of the adapters is critical if you own bikes with threaded steerers. They are a bit heavier than a quill stem by itself, and unfortunately don't come in black (at least not that I've seen), but otherwise function fine. I'm using this one until I can find the correct sized quill stem for sale (which as I said, is no longer an easy thing to find).
"slit shim" sounds like a bad word(s) (nm)Frith
Jan 28, 2004 6:17 PM
Not a good idea.Spoke Wrench
Jan 28, 2004 1:35 PM
I don't think it's a good idea to try to use a threadless stem on a threaded steerer. Even if you have enough stem sticking up out of the head tube to clamp onto, the threads are likely to concentrate the stress and snap off.
Salsa Stems...Nater
Jan 28, 2004 2:24 PM
What size/angle do you need? I just checked QBP's stock and they have a few sizes (Not many though) in stock. For example...

110mm/105 degree
120mm/105 degree

and then some really short ones (70/80/90mm) in 90 degree and a 90mm/ 75 degree.

If one of those will work...stop by the LBS.
Salsa Stems...pdg60
Jan 28, 2004 2:58 PM
I need a 130mm/75 degree.
you're in luck (eBay)gtx
Jan 28, 2004 3:45 PM
you're in luck (eBay)pdg60
Jan 29, 2004 7:17 AM
Hell yeah! Exactly what I need.

Thanks much GTX.

I've never purchased from ebay and never check for items there.
That's officially changed.

Thanks again.
I have your answerCary1
Jan 29, 2004 5:00 PM
Her is what you are looking for, 130mm 75 degree quill stem, better yet, a Titanium one from Titec for the sum of $50.
not quitelaffeaux
Jan 30, 2004 12:08 AM
In the pull down every stem on their site is threadless. No quills for sale.
laffeaux is correct. (nm)pdg60
Jan 30, 2004 7:11 AM
Oops, Sorry.Cary1
Jan 30, 2004 9:56 AM
They had quills when I ordered one a while ago and I didn't look closely at the listing. Sorry about that.
No problem, how much for yours;-) nm.pdg60
Jan 30, 2004 9:58 AM