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Threaded vs Threadless stems..(14 posts)

Threaded vs Threadless stems..Lou M
Aug 23, 2001 1:28 PM
what is the difference other than weight? What is necessary to upgrade from threaded to threadless?
re: Threaded vs Threadless stems..LC
Aug 23, 2001 1:40 PM
The stem might be lighter, but the fork is longer and usually bigger so the total weight difference is mute. Upgrade only if you feel that it is important to keep up with the latest fashion. The only real advantage that you could gain is that an allen head bolt holds it on instead of a large nut and it is more likely that you will have the tool to adjust it on the road.
Where do you get your specs from?Trollman
Aug 23, 2001 2:13 PM
You must be reading a magazine with specs from a long time ago. A blanket statement like that makes me want to repsond.

"The stem might be lighter, but the fork is longer and usually bigger so the total weight difference is mute."

The weight difference for the high end stuff is significant. I dont know what kind of slipshod parts you are buying, but I would trash them.

"Upgrade only if you feel that it is important to keep up with the latest fashion."

What are you talking about? Fashion? I see, if I am wearing my Armani suit and riding a century I might want the threadless set-up.

I understand so much better now.
There was a time....Atombomber
Aug 23, 2001 3:13 PM
When the first generation on threadless components came out, the differences in weight were negligible. The design eased assembly. With steel steerers extending higher than treaded versions, the quill weight equalled the two systems. In this day, steerers of aluminum and carbon have lowered the weight in the threadless systems favour.
Which is why....Trollman
Aug 23, 2001 3:15 PM
I made the point of mentioning that the information they were spouting was woefully off base. They just need to update their spec books.
If you get an all-carbon fork you save roughly 1/2 lb.raler
Aug 23, 2001 3:15 PM
Other advantages:

Easy stem change. 10x easier than quill setup. Excellent for the "new bike adjustment stage".

You can properly adjust your headset on the road if need be.

Larger range of stems and angles.


Height adjustment takes longer because of the need to transfer spacers.
Can I raise the BS flag?grzy mnky
Aug 23, 2001 3:22 PM
Or is too late?

Trollman, Raler and others have it right - the difference is significant if you use the technology. One can drop 1/2 lbs. easily and have a stiffer, creak-free setup.

BTW - the word is "moot" not "mute."
Grz, did you just agree w/me?raler
Aug 23, 2001 3:30 PM
I think thats a first!!
Yuppergrzy mnky
Aug 23, 2001 3:36 PM
I agreed with you last night when you said that set back was more the norm over in Components, but wasn't as direct. ;-)
re: Threaded vs Threadless stems..Atombomber
Aug 23, 2001 3:22 PM
You will need;

A new fork,
A new headset,
A new stem,
A variety of headset spacers until you find your stem height,

You might need;

A longer front brake mounting nut. Certain Carbon forks have a quite thick (compared to standard cromoly) crown, and the nut that hold the front brake on might not be long enough,
A new bar if you have the old Cinelli compatible diameter.

The change over is not too difficult with the proper tools, but I suggest that the work be performed by a quailified mechanic. Depending on the stem you have, it might require the removal of all items on one half of the bar if you do not have a removable faceplate. Getting the bar out can be a pain, and when you put everything together again, wrapping tape will take its time.
re: Threaded vs Threadless stems..DINOSAUR
Aug 23, 2001 9:57 PM
I think the advantage is with the manufacturer, it's cheaper to pump out threadless...
re: Threaded vs Threadless stems..Steeve
Aug 24, 2001 11:54 AM
I agree with you Dinosaur.

The arguement that it is easier to change stems and handlebars may be true, but I can't remember the last time I changed my handlebar or stem. (even then, you might save 20 minutes).

Quill stems provide much more (easier & quicker) height adjustment.

The manufacturer is the biggest winner with threadless stems.
Disadvantages of threadless ...bianchi boy
Aug 24, 2001 11:47 AM
I think it's important to realize that threadless systems have their disadvantages, which are not insignificant. The main problem is that you cannot simply raise or lower your handlebar height with a threadless system. I know, I know, everyone says you can use a 90-degree or positive rise stem to raise your bars with a threadless fork, but it's not as simple as with a threaded stem and fork. Also, if you prefer to have your handlebars fairly high, you either have to use a LOT of spacers, or use a +17 stem, which looks kind of dorky. You also are not supposed to use a full carbon fork (with carbon fiber steerer tube) if you have more than about 2 cm of spacers -- so that pretty much rules them out for people who like their handlebars higher. If you use a threadless fork with a long steerer tube to raise your bars higher, you negate any weight savings of the threadless system -- in fact it might be heavier than a threaded fork and aluminum stem.

Anyway, the short answer is that a threadless system can save you a lot of weight (1/2 pound) if you use a full carbon fork and are comfortable riding with handlebars a lot lower than your saddle. You also have a lot more selection of stems to choose from than with threaded. However, if you prefer to ride with handlebars nearer the height of your saddle, the threadless system is far from ideal and possibly worse than threaded.
No one mentioned the better choices of threadless stems -NMTig
Aug 24, 2001 2:25 PM