Acceptable welds?...
Results 1 to 15 of 15
  1. #1
    NeoRetroGrouch
    Reputation: TurboTurtle's Avatar
    Join Date
    Feb 2004
    Posts
    6,491

    Acceptable welds?...

    Would you consider the welds on this titanium frame acceptable? - TF
    Attached Images Attached Images
    "Don't those guys know they're old?!!"
    Me, off the back, at my first 50+ road race.

  2. #2
    RoadBikeReview Member
    Reputation:
    Join Date
    Jan 2004
    Posts
    58

    welds

    those welds look sloppier than anything else i've ever seen, but worse-the DT looks like it wasn't even welded properly nor was it mitered properly-terrible workmanship/QC.

  3. #3
    RoadBikeReview Member
    Reputation: Nessism's Avatar
    Join Date
    Feb 2004
    Posts
    1,360
    Quote Originally Posted by TurboTurtle
    Would you consider the welds on this titanium frame acceptable? - TF
    I don't like the down tube weld, it looks like the tube was not properly mitered. Otherwise, the welds look okay.

  4. #4

    Reputation:
    Join Date
    May 2004
    Posts
    1,085
    Aside from the worst DT-BB junction (again, a product mostly of poor mitering) I've ever seen...the weld on the drive-side seat-stay-BB junction is not very nice. It looks like there's a gap (air bubble?) in the bead itself, which could lead to an immediate failure. Ti is really susceptible to bad joining - I'd be careful if that frame is yours.
    "I've courted brain damage like some courtesan of darkness."


    -The Good Doctor

  5. #5
    Home Brew User!
    Reputation:
    Join Date
    Jul 2004
    Posts
    2,810

    Make??

    Care to reveal the make?
    Joined the other team in the name of the economy

  6. #6
    srf
    srf is offline
    RoadBikeReview Member
    Reputation:
    Join Date
    Jun 2004
    Posts
    324
    That downtube does look a little scary. Other than that, the only diff seems to be they don't grind down the welds like many places do (doesn't matter to me).

  7. #7
    NeoRetroGrouch
    Reputation: TurboTurtle's Avatar
    Join Date
    Feb 2004
    Posts
    6,491
    Quote Originally Posted by Lifelover
    Care to reveal the make?
    A "no-name" eBay that I was watching.

    http://cgi.ebay.com/ws/eBayISAPI.dll...125594041&rd=1

    TF
    "Don't those guys know they're old?!!"
    Me, off the back, at my first 50+ road race.

  8. #8

    Reputation: the_dude's Avatar
    Join Date
    Jun 2004
    Posts
    3,209
    yikes. i'm gonna echo the concerns of everyone else....that downtube/bb job is heinous. i thought it was a bit sketchy as a road bike, but after seeing that it's a mtb frame, i'm even more concerned. there is no way i'd ride that frame offroad.

    the_dude

  9. #9
    RoadBikeReview Member
    Reputation:
    Join Date
    May 2004
    Posts
    604
    Keep in mind that since the frame routing for canti brakes, its probably designed to use a very short travel or rigid fork.

  10. #10
    NeoRetroGrouch
    Reputation: TurboTurtle's Avatar
    Join Date
    Feb 2004
    Posts
    6,491
    Quote Originally Posted by Lab Worker
    Keep in mind that since the frame routing for canti brakes, its probably designed to use a very short travel or rigid fork.
    Why would that make a difference on good/bad welds? - TF
    "Don't those guys know they're old?!!"
    Me, off the back, at my first 50+ road race.

  11. #11
    RoadBikeReview Member
    Reputation: Crankist's Avatar
    Join Date
    Feb 2004
    Posts
    408
    Quote Originally Posted by TurboTurtle
    Would you consider the welds on this titanium frame acceptable? - TF
    It'd be acceptable to me, but really I'd prefer prettier workmanship. Weld quality isn't merely about appearance, but also penetration and using a process that minimizes tube movement and warpage. Only a penetration test such as x-ray can definatively answer your question.

  12. #12
    Arrogant roadie.....
    Reputation: Dave_Stohler's Avatar
    Join Date
    Jan 2004
    Posts
    4,232
    The welds look acceptable, but the workmanship is quite mediocre. It's obvious that this is a hand-welded frame, but the builder spent zero time on details.

    It's obviously a frame from some "handmade factory". There are some in Eastern Europe (Czechoslovakia, mostly) and quite a few in China. You could always take a dremel tool and grind some of the sharp edges down.

    Still, I see nothing that would compromise the strength of this frame.
    We are the 801
    We are the central shaft

  13. #13
    RoadBikeReview Member
    Reputation:
    Join Date
    May 2004
    Posts
    604
    Quote Originally Posted by TurboTurtle
    Why would that make a difference on good/bad welds? - TF
    It doesn't, but the gentleman that asked the question was oboiusly looking at buying the frame. I figured that how well the bike handled might also be an important factor to him.

  14. #14
    RoadBikeReview Member
    Reputation:
    Join Date
    Feb 2002
    Posts
    21,295

    Welds vs. Miters

    Quote Originally Posted by Dave_Stohler
    Still, I see nothing that would compromise the strength of this frame.
    I don't know about you, but that down tube mitering scares me. It suggests that there's perhaps a tenuous bond between the weld and the down tube, and certainly NO connection between the down tube and the BB. That is what would worry me. Obviously it would depend on the price, but I'd take a pass.

  15. #15

    Reputation:
    Join Date
    May 2004
    Posts
    147
    The downtube weld is an obvious no. There may be a little undercut in the third photo but the lighting makes it hard to see. On the whole I'd be a bit nervous about riding that. The fact that the welds are visually uneven makes me nervous that penetration may be uneven as well.

Similar Threads

  1. Working on Aerobic base-what is acceptable length time for doing this?
    By Lkdog in forum Racing, Training, Nutrition, Triathlons
    Replies: 45
    Last Post: 11-04-2004, 12:21 PM
  2. Cracked 2003 Litespeed/Litespeed's response...
    By WesternMD in forum General Cycling Discussion
    Replies: 69
    Last Post: 09-27-2004, 07:07 AM
  3. Is any BB play acceptable?
    By bill in forum Components, Wrenching
    Replies: 6
    Last Post: 08-19-2004, 09:49 AM
  4. Lugs vs. Welds
    By azmadoc in forum General Cycling Discussion
    Replies: 13
    Last Post: 04-24-2004, 02:33 PM
  5. is 8.7 kg (19.33lb) an acceptable weight for an all alu bike?
    By Kaboom in forum General Cycling Discussion
    Replies: 5
    Last Post: 04-23-2004, 09:17 AM

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 ROADBIKEREVIEW

VISIT US AT

© Copyright 2020 VerticalScope Inc. All rights reserved.