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Fork threading question??(7 posts)

Fork threading question??Grizfan
Jan 25, 2004 7:31 PM
Can an aluminum steer tube be threaded for use with a threaded headset?? I have this Wound Up thread-less fork I may use? I love swap meets...Thanks
re: Fork threading question??Spiderman
Jan 25, 2004 9:28 PM
starting threads on a steerer tube is REALLY difficult. A shop may be able to do it. The problem is getting the treads started straight. Also, if it is 1 1/8" you may not be able to find a headset for it. I supposed you could use a junky mtn. headset.

If i were a shop owner, I wouldn't do it. If the fork eventually fails at the threads, I could be held accountable. that doesn't mean shops won't do it though.

It would probably be easier - and cheaper if the fork gets ruined trying to thread it - to buy a threadless headset and new stem.

So, to answer your question, there is a small chance that it is possible, but I would recommend against it. (then again, you are free to make your own decisions and listen to whomever you want to)
re: Fork threading question??Rusty Coggs
Jan 26, 2004 5:31 AM
Even if it could be threaded,there may not be enough meat in the steerer to do it safely. I would not trust a LBS to do a threading job in any event. A frame builder is better equipped to do it right if it could be done.
I wouldn't.Spoke Wrench
Jan 26, 2004 5:34 AM
Cutting threads with a die is a metal removal process so it's going to weaken the fork. If there is enough metal to cut the threads and still have adequate strength, the fork had too much metal and was overweight in it's threadless state. I don't think that's a likely case.
Thanks...Grizfan
Jan 26, 2004 8:41 AM
Thanks guys, I will either run the colnago fork or install a treadless headset & stem. I have all the parts to do the job. I have had treads added to steel fork in the past with no problems I just never recall seeing an aluminum steer tube that was threaded...Thanks again
re: Fork threading question??Grahamalicious
Jan 26, 2004 4:44 PM
I see the onion there, you must've been at the cronometro swap in madison on saturday?
correct....Grizfan
Jan 27, 2004 8:46 PM
the swap was great! Gets bigger every year...