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Never thought to ask before...1" vs. 1 1/8"(21 posts)

Never thought to ask before...1" vs. 1 1/8"Ahimsa
Mar 18, 2003 8:02 PM
First of all, what is the additional 1/8" measured from? Is that the total circumference of the steerer tube? Or is it the diameter?

Secondly, I'd like to see a poll:

Do you ride 1" threadless, 1 1/8" threadless, or 1" quill?

Just curious...

A. (1" threadless)
re: Never thought to ask before...1" vs. 1 1/8"DieselDan
Mar 18, 2003 8:12 PM
The measurment is the diameter from the outsides of the steerer tube.

FYI: There is 1 1/8" treaded (quill), usually on low end MTBs, a 1 1/4', but I've never seen one, and 3/4' on some cheap dicount store bikes.
1 1/8" threadless (nm)jtferraro
Mar 18, 2003 8:48 PM
1" quil and 1 1/8" threadless. nmKen of Fresno
Mar 18, 2003 8:58 PM
1" threaded and threadless.. 1 1/8" threadless.. two HeadshocksAkirasho
Mar 18, 2003 9:09 PM
Be the bike.
1" threadless nmgollum
Mar 18, 2003 9:11 PM
1" threadless....... nmzooog
Mar 19, 2003 2:38 AM
all of the abovemwood
Mar 18, 2003 9:51 PM
my new(er) Colnago is 1" threadless, my mtb is 1 1/8" threadless and my 2.8 Cannondale and PX10 Peugeot are 1" quill.
1" threaded, 1" thredless, 1" 1/8, 1.5 nmcyclopathic
Mar 19, 2003 3:58 AM
1" threadless. nmMike P
Mar 19, 2003 4:09 AM
1" threaded (Kona Kiluea); 1 1/8" threadless (Lemond Zurich).nmSpunout
Mar 19, 2003 4:24 AM
A little history, a little opinion.Spoke Wrench
Mar 19, 2003 6:26 AM
I believe that Richie produced the first 1 1/8" headset. At the time I read an article that he wrote on the subject. He said that he did it to simplify mitering the down tube where it meets the head tube. The greater strength and stiffness benefits (if any) just made the concept easier to sell.

I have five personal bikes that I use. They pretty well cover the whole range of headset sizes and types. I've never felt any functional difference while riding, but I'm not exactly a high mileage hammerhead so maybe I'm just not sensitive enough to notice.

If I was buying a new frame today, I think that I'd get a 1" threadless for a steel or ti frame with traditional size tubes and 1 1/8" threadless for fat tube aluminum.
..just look at all the Supercorsa's popping up, 1" lives! nmSpunout
Mar 19, 2003 6:46 AM
Definitely not Ritcheylaffeaux
Mar 19, 2003 11:39 AM
Ritchey was the absolute last manufacturer to go to a 1 1/8" set up.

The first manufacturers to experiment with oversizes head tubes were Klein, Fisher, Cannondale and Yeti in the late '80s - all with mountain bikes. Fisher and Yeti used a 1 1/4" tube, Cannondale still uses an odd sized oversize tube, and Klein had their own size as well.

In the early '90s MTB forks always came in 1", 1 1/8", and 1 1/4" threaded and quill sizes. Eventually the number of sizes available was reduced (primarly by the influence of suspension fork manufacturers) to one size 1 1/8" threaded - this happened around 1999. Ritchey held out for another year before finally switching.

Today there is a new "free ride / downhill standard" of 1 1/2" this being pushed and is available on some forks and bikes. Cannondale still does not use an industry standard size on MTB to this day.
P.S.laffeaux
Mar 19, 2003 11:45 AM
Road bikes:
1 - 1" threadless
1 - 1" threaded w/ quill stem

MTBs:
2 - 1 1/8" threadless
2 - 1" threadless
1 - 1" threaded w/ quill stem
1 - 1 1/18" threaded w/ clamp on stem (GT flip flop stem)
1 - 1" threaded w/ clamp on stem (odd '80s Ritchey design)
road = (6x1") +(3x1.125") mtb = (1x1"+2x1.125") (nm)terry b
Mar 19, 2003 6:56 AM
1-inch threadless nmRJF
Mar 19, 2003 7:40 AM
1 in threaded nmkilimanjaro
Mar 19, 2003 10:07 AM
depends on the bike..._rt_
Mar 19, 2003 10:36 AM
trek 5200 oclv: 1" threadless

bianchi giro: 1" quill

trek 8000 & dean ace-3: 1 1/8" threadless

rt
Just switched...Matno
Mar 19, 2003 11:21 AM
from 1" threaded to 1" threadless. I would have preferred 1.125" (purely from a compatibility and aesthetics point of view), but the 1" is just fine. Not that I would EVER be able to tell the difference. One caveat though, the steerer on my 1" fork was bent. I don't know how that happened, but I'd be willing to bet it wouldn't have happened on a 1.125" steerer. Just a thought...
yes to all three nmJS Haiku Shop
Mar 19, 2003 11:47 AM