Quill Stem to Threadless: What Size Do I Need?
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- เผยแพร่เมื่อ 27 ก.ค. 2021
- How to convert the quill stem system to threadless?
What size do you need? Before you begin to order a converter, measure and find out the size you need.
Different sizes of quill stems:
If the diameter is 25.4mm (1 1/8" fork), you’ll need 1 1/8” to 1 1/8” threadless converter.
If the diameter is 22.2mm (1" fork), you’ll need 1” to 1 1/8” threadless converter.
This my second purchase of the Profile Design threadless converter, the adapter converts your old quill style forks to use threadless stems.
The top cap has a standard size of 32mm, therefore you need to install the stem before putting it into the steerer tube.
The adapter couldn’t go any further.
Before you tighten the top bolt, take out the converter and grease around it to avoid it from getting stuck at a later time.
Link to the product:
profile-design.com/products/t...
Check out my other video:
Profile Design Threadless Stem Converter: 1" To 1 1/8" • Profile Design Threadl...
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Finally the video i need.
Very thanks sir!!!!
Thank you!
Thank you
Can I used 22.2 stem adapter size to a 25.4 inner size of the fork, because I am not sure to the exact size of my MTB steerer tube? That is why I am planning to buy 22.2 stem adapter
How do you measure the stem and what do you buy for your measurement? Same question for the handlebar attachment to the stem. Thank you.
You need a vernier caliper to measure the thickness of the handlebar and stem, you can get it at your local utility stores like Homedepot.
my 90s mountain bike restoration uses an uncommon and odd size of 21.1mm which I believe is more common with BMX stems so to find an adapter for it is very hard
Does that measurement comes from the stem itself? I got the same size by measuring the diameter of my existent quill stem with a caliper.
I own an old giant boulder.
@@fabiomaragnayup, it is the measurement of the stem needed to fit, when I was building the bike I bought a new quill stem with the regular 22.2mm sizing and it couldn't fit at all, was just a little too large to go in, then I did some research and realize there is an obscure 21.1mm on some mountain bikes also. I believe some old schwinn bikes uses the same size.
@@SurgTT I’m doing a restoration of a 90s mountain bike myself and I’ve measured the diameter as 18mm. Any idea where to find these more uncommon sized quill stem adapters? Where did you find your 21.1mm?
@@hannahwaltisbuhl1598 that is a very strange diameter, are you sure you measured it correctly? From my research I haven't seen any record of a stem smaller than 21.1mm
have you had any luck solving this? my early 90s apollo is 21.1 too
how about video tutorial about bmx stem
My stem is seriously stuck! Galvanized! Please,any suggestions?
I would love to upgrade to that converter,but I can't even budge the quill stem even a millimeter!😢😂
Greetings from Croatia 😎
Use a blowtorch on it to expand the metal then hit it with a rust penetrater or liquid wrench. Or you might need to soak it over night with the same stuff i mentioned or W.D.40
Hello! What are the advantages of a threadless stem over a quill stem?
Hi, a threadless stem gives you more options on stems (length and angle) and handlebars, for example, you could fit modern 31.8mm and 35mm handlebars.
@@DanyoSports thanks for your response and thanks for the knowledge! Appreciate your channel, Danyo :)
What is the name of that measuring device sir?
It’s a vernier caliper.
Is it necessary to put headset spacers in the gap between the nut and the thread less stem?
No, it’s not necessary but you can put spacers to cover the gap.
@@DanyoSports thanks! Great information!
@@DanyoSports I was going to ask this same question. The stem will stay clamped on to the adapter with no spacers under? meaning, it won't slide down or anything? I a bit concerned about.
Can a 22.2 quill stem,can fit to my 25.4 bike?
Yes, it’s possible.
I mean do I need star nut to install it?
No, you don’t need a star nut.
What's the brand and model of that stem?
Profile Design is the brand.
@@DanyoSports sorry, i meant the other piece. That connects the handlebar to the adapter
is your fork 26 3/8?
The fork is 1” (25.4mm).
25.4mm is 1 inch, 1.125 inches.
Is any star nut down there?
No, it uses a wedge, just like a stem. It's basically a "headless" stem.
Inch is 2,54cm
Put spacers on it’ll look cleaner
This is NOT a threadless conversion since the forks are still threaded. It's a quillstem conversion.
Am I crazy? Or just un-cool. No! People really do have a bike/quill stem problems to solve like me…!