Hopeless repair? 1996 GT Zaskar- Mtbr.com
Results 1 to 21 of 21
  1. #1
    mtbr member
    Reputation:
    Join Date
    Oct 2009
    Posts
    6,542

    Hopeless repair? 1996 GT Zaskar

    I've read a few old threads on aluminum frame repair and most say it's not worth it. However, this is a special case.

    My Dad gave me his late 90's GT Zaskar (?). I was so stoked to get it, but lo and behold, I found this culprit on the front shifter side of the head tube. I really, really, really would like to keep it (and ride it) for sentimental reasons but not sure if repairing this would just make matters worse. Doesn't have to be pretty - just rideable.

    Anybody make such a repair and have it work? Or is this thing ready for the scrap yard?

    Hopeless repair? 1996 GT Zaskar-img_2427.jpg

  2. #2
    REALLY?
    Reputation: jeffgothro's Avatar
    Join Date
    Mar 2007
    Posts
    2,098
    Um...pretty sure thats scrap material. Sorry for your loss...and not just because of the sentimental value, old Zaskars are beautiful and incredible bikes.
    DJ, "Because I'm sure the world need's more dudes stalking the woods stoned out of their mind carrying a deadly weapon."

  3. #3
    Stokeless Asshat
    Reputation: jeff's Avatar
    Join Date
    Jan 2004
    Posts
    3,360
    Post this in the frame builders forum. Most will say the same as JGT though.
    Zip ties? Not on my bike!

    Want:
    650B rims or wheel set. 80's vintage 32 or 36 x 135mm

  4. #4
    mtbr member
    Reputation:
    Join Date
    Jan 2004
    Posts
    1,320
    Ghetto fix...make steel ring a few thousands smaller ID. Heat ring and while hot, slip it over the HT. Drill very small hole at end of crack. Ride on rail trails or equivalent. If you get it welded as a last resort, do the ring thing anyways.
    lean forward

  5. #5
    illuminaughty
    Reputation: da'HOOV's Avatar
    Join Date
    Jan 2009
    Posts
    1,651
    ouch,,,,,,,,,what size is it and where do you live?
    :)

  6. #6
    mtbr member
    Reputation: rudymexico's Avatar
    Join Date
    Aug 2010
    Posts
    257

  7. #7
    Certified Bike Junkie
    Reputation: muddybuddy's Avatar
    Join Date
    Jan 2007
    Posts
    1,747
    Bummer. Zaskars are easy enough to find and cheap enough though that I wouldn't even try to fix that. Especially with it needing to be heat treated after any welding.
    Need: McMahon brake for roller cam mounts, Mountain Goat fork.

  8. #8
    mtbr member
    Reputation:
    Join Date
    Jan 2006
    Posts
    112
    Quote Originally Posted by 1niceride View Post
    Ghetto fix...make steel ring a few thousands smaller ID. Heat ring and while hot, slip it over the HT. Drill very small hole at end of crack. Ride on rail trails or equivalent. If you get it welded as a last resort, do the ring thing anyways.
    This is exactly what I'd do, but not everyone has access to a lathe. Even fewer have the skills to make a collar that would fix the problem.

    Time for a new/used Zaskar frame, Dion.

  9. #9
    mtbr member
    Reputation: digilux's Avatar
    Join Date
    Mar 2007
    Posts
    178
    Have FTW or someone to do a headtube replacement. But you need to ask your self if this frame have that value for you that you are willing to spend high repair cost on it.
    No points to garage queens!

    "Mum it's not a bike - it's a Yeti" (my daughter explaining things)

  10. #10
    mtbr member
    Reputation: LyNx's Avatar
    Join Date
    Oct 2004
    Posts
    24,080
    Can't imagine that's that's something that's fixable, not without leaving the bike looking damn ugly, if it were me and it held such sentimental value I'd be happy enough to strip it and hang it on the wall somewhere I would see it on a regular basis (Like an office wall) and always have the memories.
    Quote Originally Posted by Harold
    You're doing mtbr wrong, you're supposed to get increasingly offended by the implications that you're doing ANYTHING wrong.

  11. #11
    mtbr member
    Reputation: digilux's Avatar
    Join Date
    Mar 2007
    Posts
    178
    Quote Originally Posted by LyNx View Post
    Can't imagine that's that's something that's fixable, not without leaving the bike looking damn ugly,...
    Wrong, - if done by a craftsman like FTW (... do you know who FTW is?) then the result is superb!



    read the thread at Second Spin Cycles: Yeti ARC repair update
    No points to garage queens!

    "Mum it's not a bike - it's a Yeti" (my daughter explaining things)

  12. #12
    mtbr member
    Reputation: LyNx's Avatar
    Join Date
    Oct 2004
    Posts
    24,080
    Was talking without having to replace and repaint the frame, as in done without altering the frame except to fix/patch the crack. I know that it's possible and actually fairly easy to replace a HT, but wouldn't be the same stock bike anymore.

    Quote Originally Posted by digilux View Post
    Wrong, - if done by a craftsman like FTW (... do you know who FTW is?) then the result is superb!



    read the thread at Second Spin Cycles: Yeti ARC repair update
    Quote Originally Posted by Harold
    You're doing mtbr wrong, you're supposed to get increasingly offended by the implications that you're doing ANYTHING wrong.

  13. #13
    mtbr member
    Reputation: digilux's Avatar
    Join Date
    Mar 2007
    Posts
    178
    Quote Originally Posted by LyNx View Post
    ..., but wouldn't be the same stock bike anymore.
    I will not be quarrelsome, but if you change the bonnet and fenders on your car - isn't it still the same car?
    No points to garage queens!

    "Mum it's not a bike - it's a Yeti" (my daughter explaining things)

  14. #14
    Certified Bike Junkie
    Reputation: muddybuddy's Avatar
    Join Date
    Jan 2007
    Posts
    1,747
    Head tube replacement is probably not viable on the Zaskar with the gusset between the top and down tubes. No way to weld around the tubes to the head tube with out removing the gusset and at that point, again, is it worth it? I say no. And that's with me getting most of my frame repairs done at bro deal prices.
    Need: McMahon brake for roller cam mounts, Mountain Goat fork.

  15. #15
    mtbr member
    Reputation: LyNx's Avatar
    Join Date
    Oct 2004
    Posts
    24,080
    Yes, it is, but that comparison is flawed to say the least if you think you can compare replacing a couple of fenders with replacing a HT on a bike. Replacing the HT on a bike is akin to replacing part of the chasis or engine on a car/vehicle, it warrants a re-inspection and re-registration of the vehicle

    Quote Originally Posted by digilux View Post
    I will not be quarrelsome, but if you change the bonnet and fenders on your car - isn't it still the same car?
    Quote Originally Posted by Harold
    You're doing mtbr wrong, you're supposed to get increasingly offended by the implications that you're doing ANYTHING wrong.

  16. #16
    mtbr member
    Reputation: Zakman's Avatar
    Join Date
    Aug 2011
    Posts
    147
    1996 must have been a bad year for head tubes. I just found a crack on my 96 Rockhopper yesterday. I am super bummed about it too. Its been living in basements, closets and attics since 2001 or so. Even though I hadn't been riding it; every time we moved it came with us. Each time I bought a new bike, my wife would tell me I had to get rid of it and I would move it to a new hiding place. I broke it out recently and got it rideable again because of my 2 year old. He is obsessed with mountain bikes. At least 50% of what comes out of his mouth is mountain bike related. I bought him a scoot bike in February and he loves it. Now instead of being content with me walking along side him he wants me to ride with him. I had planned on using this bike to take him to the park or the pool and not have to worry about leaving it for an extended time with only a flimsy lock on it. He also likes to "fix" my bikes too. This generally consists of him sticking hex wrenches in various places they shouldn't go and twisting. This bike was the perfect thing for him to work on. Anyway here is a picture of the finished product made into a single speed with a cheapo Performance Bikes SS kit and tires, cheap Shimano "V" brakes and the seat, post, stem and bars from my Stumpy fsr. There is also a close up of the crack in question. On the plus side when I told my wife she said that my son would be so upset and that I have to buy another bike. I wanted a Hoo Koo E Koo along time ago. Maybe I will find one cheap on Craigslist or eBay. Sorry for the thread hijack.

    Hopeless repair? 1996 GT Zaskar-imageuploadedbytapatalk1338339833.835188.jpg Hopeless repair? 1996 GT Zaskar-imageuploadedbytapatalk1338339849.269427.jpg
    Attached Thumbnails Attached Thumbnails Hopeless repair? 1996 GT Zaskar-imageuploadedbytapatalk1338339798.951649.jpg  


  17. #17
    mtbr member
    Reputation:
    Join Date
    Oct 2009
    Posts
    6,542
    I think I'm just going to find a donor frame - at this point it doesn't have to be a GT - although that's what ultimately I want. I was quoted by a welder of $40 - but from what you guys are saying, this is nothing like a quick mend as you would on a steel bike given all the heat treatment, etc. necessary for a strong weld on aluminum.

  18. #18
    mtbr member
    Reputation: SuspectDevice's Avatar
    Join Date
    Apr 2004
    Posts
    647
    Quote Originally Posted by digilux View Post
    Have FTW or someone to do a headtube replacement. But you need to ask your self if this frame have that value for you that you are willing to spend high repair cost on it.
    I just asked Frank. He doesn't want to do it.
    He does 7005 headtube replacements for $400. With 6061 it's not really worth the time or expense bringing it through heattreat. You'd lose the ball burnished finish too, and that's my favorite part of Zaskars!

    Keep the parts, find a new frame. Do teal. Those were always my favorites.

  19. #19
    mtbr member
    Reputation:
    Join Date
    Sep 2010
    Posts
    73
    so whats the mode of total failure if the crack goes from top to the bottom?

    the fork steerer tube will keep the headset in place

    its going to creak, but it might be rolling for awhile.

    a collar seems like a good mcgyver

  20. #20
    mtbr member
    Reputation:
    Join Date
    May 2020
    Posts
    3
    Can anyone point me in the direction of FTW who can weld a headtube for me? I know this is years down the line, but I hope you managed to get a repair :P

  21. #21
    Sneaker man
    Reputation: mik_git's Avatar
    Join Date
    Feb 2004
    Posts
    3,160
    Frank The Welder | Frank Wadelton – Bicycle Fabrication
    although I think he may be closed down at the moment due to all the virus thingys
    All the gear and no idea.

Members who have read this thread: 22

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

THE SITE

ABOUT MTBR

VISIT US AT

© Copyright 2020 VerticalScope Inc. All rights reserved.