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Steerer extenders

Old 10-12-13, 06:48 AM
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trekker pete
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Steerer extenders

My son's bike is an old Giant ATX970. It has a pretty much dead RST 381 front fork. The rest of the bike is in great shape. I would like to put a decent used fork on it. Budget is pretty low. Rather not spend more than 50 bucks or so.

The trouble is that this old steel frame has a very long head tube and the bars are still too low. I need a minimum of about 8.5 inches. Would like to find one longer so I could put a spacer or two in. I would like to find something 9 inches or better. This limits my options greatly.

I have considered using an extender, but, have read here that it is not advised with mtbs. Is it really that much of a problem? What if I used some sort of high strength adhesive to mount it permanently? Something like JB weld? I would think this would be pretty sturdy. I doubt this bike would be used on anything more aggressive than XC singletrack. Neither my son nor I appear to have the daredevil gene required for serious DHing which is where you really need the bombproof stuff.
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Old 10-12-13, 04:35 PM
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If you need a longer steerer tube to fit a long head tube, you need to locate a fork with a long steerer tube or have a machine shop weld a section of tube to your existing fork(expensive). Forget JB weld!!!!! Good luck
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Old 10-12-13, 10:01 PM
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Originally Posted by skoda2 View Post
If you need a longer steerer tube to fit a long head tube, you need to locate a fork with a long steerer tube or have a machine shop weld a section of tube to your existing fork(expensive). Forget JB weld!!!!! Good luck
Have you actually tried this and tested it? Did it hold out? I could be wrong but methinks that would be risking injury.
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Old 10-12-13, 10:06 PM
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DO NOT get the steerer welded, that is not a safe thing to do.

https://www.jensonusa.com/Stem-Parts/...eerer-Extender

Just get the extender and use it while asking local shops if they have any old suspension forks laying around(You may be surprised).
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Old 10-12-13, 10:22 PM
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Do that^ They come in different lengths and you're in luck considering the bike has the *now* universal 1 1/8ths steerer.

In principle you can but one on the other but, the steerer tube will be weakened with further lengthening.
To get additional rise, you can use a adjustable stem adjusted all the way up.
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Old 10-13-13, 12:43 AM
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Originally Posted by Siu Blue Wind View Post
Originally Posted by skoda2
have a machine shop weld a section of tube to your existing fork(expensive)
Have you actually tried this and tested it? Did it hold out? I could be wrong but methinks that would be risking injury.
If done right there wouldn't be a problem with it, you wouldn't just weld a piece onto it.






* Don't attempt this type of modification unless you know what you're doing.
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Old 10-13-13, 04:10 AM
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Very few people would be qualified to weld a steerer tube. Most Framebuilders would not try it, IMO. It would be unlikely to save anyone money, if it could be safely done, which is unlikely.

Suntour has a suspension fork that might fit. The 1 inch steerer is 255mm or about 9.5". Bikeman is selling it for $68

https://www.bikeman.com/FK8736.html
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