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Headset/Steering Tube/ Fork

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Headset/Steering Tube/ Fork

Old 03-15-09, 04:19 PM
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dgsca
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Headset/Steering Tube/ Fork

My old (1986) Alan has an old style DA 1" headset. I am considering changing the aluminium fork (1" threaded) to a carbon fork. I've noticed that 1" threaded forks are NOT the norm these days.

If I wanted to change to 1 1/8" fork, is it as simple as new headset/new fork? Will the stem still fit or do I need to go to the new style stem for the threadless forks.

In my perfect world, I would be able to change the fork to a 1 1/8" threaded fork and 1 1/8" headset and pop my old stem and bars back into place. I would like to keep the old school quill stem to maintain the year correct appearance.

Thanks all...............dgsca
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Old 03-15-09, 04:49 PM
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After a bit more research it appears I don't live in a perfect world as far as forks, stems and headsets.

That said, if I were to convert to 1 1/8" fork and headset, will it be compatable with my frames steering tube? What size handle bars fit into the new, non quill, stems for the threadless forks?

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Old 03-15-09, 04:53 PM
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You can't use a 1 1/8" fork in a 1" headtube. I've read here that it is possible to find a 1" carbon fork. I've never looked for them because I have no desire to own a carbon fork.
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Old 03-15-09, 05:08 PM
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1" threaded carbon forks... are going to be real tough to find, but I've seen a few. 1" threadless forks are around, I just sold one on ebay. eBay is worth a look if your're serious. As Dirtdrop said you can't use a 1 1/8" fork in a frame made with a one inch headtube. If you go 1" threadless, you'll need the new fork, 1" threadless headset, starnut and a new stem, 1" or 1 1/8" with a shim.
IMO carbon isn't worth the hassle and expense, especially on an older bike.
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Old 03-15-09, 05:11 PM
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Also if you're concerned about "year correct appearance" why would you want a carbon fork in the first place. Just curious.
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Old 03-15-09, 05:14 PM
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You won't notice a difference in the ride with a CF,
Use less PSI in your front tire for a softer ride.
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Old 03-15-09, 06:37 PM
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Originally Posted by norwood View Post
Also if you're concerned about "year correct appearance" why would you want a carbon fork in the first place. Just curious.
+1

And the corollary question: unless there's something wrong with the current fork, why are you looking to replace it?
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Old 03-15-09, 07:45 PM
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Nashbar has a threaded and threadless 1" fork:

Threaded: http://www.nashbar.com/bikes/Product..._200299_200456
Threadless: http://www.nashbar.com/bikes/Product..._200299_200456

I replaced my aluminum road bike's steel fork with the threadless CF fork above. Mainly did it for weight; didn't think I'd notice much of a difference. But I could definitely tell a difference (granted I did change to much stiffer wheels before changing out the fork).

I would imagine switching from aluminum to CF would be noticeable.
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Old 03-15-09, 08:31 PM
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Too bad you didn't ask this question about half a year ago. 1" threaded carbon forks were going for cheap on chucksbikes. I got one for about $40. Martec, taiwanese OEM.
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Old 03-15-09, 08:44 PM
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HAHA, operator, I got that fork too. What a piece of crap.

Dude, don't change to a CF Fork, it is just silly on an older bike.
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Old 03-16-09, 12:29 PM
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Thanks to all who answered. The question "why". Well, this is a screwed and glued Alan frame set with an aluminium fork. Not the stiffest set up ever produced, even in 1986. At higher speeds (over 30 mph ) particularly on a big desent, this bike can get a little more than twitchey, it can be down right scarry.

Past experience with steel frames and aluminium forks taught me a carbon fork was good for about 10 mph more on the fear to speed ratio plus a wieght reduction not available from a steel fork.

At 59, I hit the "pucker point" at slower speeds than when I has a young racer. And finally, I'm a tinker.

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Old 03-16-09, 06:30 PM
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Originally Posted by sooprvylyn View Post
HAHA, operator, I got that fork too. What a piece of crap.

Dude, don't change to a CF Fork, it is just silly on an older bike.
Heh, it was ironically much better than my columbus lugged steel fork. Lighter and smoother ride. It currently resides on my commuter bike. Jumped it into huge potholes and stuff with no problems.

Originally Posted by dgsca View Post
Thanks to all who answered. The question "why". Well, this is a screwed and glued Alan frame set with an aluminium fork. Not the stiffest set up ever produced, even in 1986. At higher speeds (over 30 mph ) particularly on a big desent, this bike can get a little more than twitchey, it can be down right scarry.

Past experience with steel frames and aluminium forks taught me a carbon fork was good for about 10 mph more on the fear to speed ratio plus a wieght reduction not available from a steel fork.

At 59, I hit the "pucker point" at slower speeds than when I has a young racer. And finally, I'm a tinker.

dgsca
Yeah, just wait till those frames start de-bonding at the lugs.
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