Advertise on Bikeforums.net



User Tag List

Results 1 to 12 of 12
  1. #1
    Caffeinated. Camel's Avatar
    Join Date
    Aug 2004
    Location
    Waltham, MA
    My Bikes
    Waterford 1900, Quintana Roo Borrego, Trek 8700zx, Bianchi Pista Concept
    Posts
    1,541
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)

    Titanium rack bolts, dumb idea?

    Would it be a silly idea to replace my rack bolts with titanium ones?

    This would be for a steel frame, so I don't believe there would be an issue with the titanium siezing like on an aluminum frame.-Do correct me if I'm mistaken.

    Opinions?

    Thanks!
    mmmm coffeee!

    email: jfoneg (_"a t symbol thing"_) yahoo (_"period or dot"_) com

  2. #2
    You need a new bike supcom's Avatar
    Join Date
    Aug 2002
    Posts
    5,434
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    This is so you can save how many grams on a loaded touring bike? If you insist, you should use some anti-seize on the fasteners.

  3. #3
    nothing: lasts forever ink1373's Avatar
    Join Date
    Aug 2004
    Location
    minneapolis
    Posts
    1,502
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    i've thought about doing this for the corrosion factor. thats my favorite bit about titanium, because even "stainless" bolts get rusty once they're used a few times.

  4. #4
    Senior Member edp773's Avatar
    Join Date
    May 2005
    Location
    Illinios
    My Bikes
    2004 Giant Cypress, 2006 Trek 7.3 FX, 2007 Gary Fisher Wahoo
    Posts
    1,143
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    If you are replacing them them for cosmetic reasons (looks cool), or for psychological reasons, then you cannot put a value on the cost or benefits.

    For looks, you could buy some cadium-style plated allen bolts at a Local Hobby Shop. I buy gold colored bolts with the deep allen socket head.

    If you are replacing the bolts for a weight reduction, my opinion is that you would only be saving grains, and not grams, on three to four bolts.
    Born Again Bicyclist! I found my Faith.

    Giant Cypress, GF Wahoo, Trek 7.3FX, Schwinn Sprint

  5. #5
    Senior Member
    Join Date
    Feb 2001
    Location
    England
    Posts
    12,194
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Ti bolts are half the weight and half the strength of decent stainless steel allen bolts. Rack bolts can be heavily loaded and are the only bolts on a bike that ever shear. Don't do it.
    You can use Ti bolts elswhere if you have cash to blow.
    I confess to one Al bolt which fixes my front dynamo lamp to a steel bracket.

  6. #6
    Senior Member
    Join Date
    Jul 2005
    Location
    Mid-Atlantic
    My Bikes
    A bunch
    Posts
    891
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    You would be better off using a titanium rack with stainless bolts, if weight is the issue.

    Good quality stainless hardware with a little light oil stays rust free. Were you also thinking of replacing your fender and bottle cage bolts?

  7. #7
    Sore saddle cyclist Shifty's Avatar
    Join Date
    Jan 2005
    Location
    Eugene, OR
    My Bikes
    Road, touring and mountain
    Posts
    3,744
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    300 series stainless will not show surface rust, 400 series will only show very slight surface rust, and will not rust in the thread when installed. There is just slightly more ferrous material in the 400. Even with 400, there will never be enough rust to be any problems. CHenry is correct, a touch of oil will do the trick to avoid any surface rust if you are concerned. To tell which series you have you can do the magnet test, if a magnet sticks, it is 400, very slight or no magnetic attraction you have 300. (magnet attracts to ferrous content, which also slightly rusts).
    Those voices in your head aren't real, but they have some great ideas

  8. #8
    Caffeinated. Camel's Avatar
    Join Date
    Aug 2004
    Location
    Waltham, MA
    My Bikes
    Waterford 1900, Quintana Roo Borrego, Trek 8700zx, Bianchi Pista Concept
    Posts
    1,541
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by MichaelW
    Ti bolts are half the weight and half the strength of decent stainless steel allen bolts. Rack bolts can be heavily loaded and are the only bolts on a bike that ever shear. Don't do it.
    You can use Ti bolts elswhere if you have cash to blow.
    I confess to one Al bolt which fixes my front dynamo lamp to a steel bracket.
    I was thinking titanium bolts would be stronger than steel, so I'd change them to help prevent shearing off.

    My mistake, I'm very glad I asked.

    And thanks all for the replies!
    mmmm coffeee!

    email: jfoneg (_"a t symbol thing"_) yahoo (_"period or dot"_) com

  9. #9
    Senior Member
    Join Date
    Sep 2001
    Location
    Montreal
    My Bikes
    Peugeot Hybrid, Minelli Hybrid
    Posts
    6,521
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Shifty
    To tell which series you have you can do the magnet test, if a magnet sticks, it is 400, very slight or no magnetic attraction you have 300. (magnet attracts to ferrous content, which also slightly rusts).
    The magnetic properties are determined by the crystaline structure of the steel (martensitic or austenitic). There is little difference in the iron content (both over 70%). Regular mild steel when heated red hot becomes non-magnetic.

  10. #10
    'Mizer Cats are INSANE Mentor58's Avatar
    Join Date
    May 2005
    Location
    Clarksville, TN
    My Bikes
    C-dale T800
    Posts
    808
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by CHenry
    You would be better off using a titanium rack with stainless bolts, if weight is the issue.

    Good quality stainless hardware with a little light oil stays rust free. Were you also thinking of replacing your fender and bottle cage bolts?
    If nothing else that will sure lighten your wallet. I saw a set of Ti Tire levers at our LBS, I swear that the card they were taped to weighed more than the levers.

    Steve W.
    Who has never been called a weight weenie.
    *Surly LHT ... Slow and Steady, *Motobecane Century Pro ... Better than Me
    *Bianchi Volpe ... Well, just 'cuz , Fuji Track SS / Fixie ... Mustache bars and a big grin
    Rans F5
    Easy Racers Tour Easy
    * Now that I'm 'Bent, I will probably unload all but the Fixie.

  11. #11
    Banned
    Join Date
    Aug 2005
    Posts
    5,117
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I wouldn't particularly trust the stainless bolts. Chromed steel should be stornger. Anyone know how good the stainless rack bolts are.

  12. #12
    Caffeinated. Camel's Avatar
    Join Date
    Aug 2004
    Location
    Waltham, MA
    My Bikes
    Waterford 1900, Quintana Roo Borrego, Trek 8700zx, Bianchi Pista Concept
    Posts
    1,541
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Peterpan1
    I wouldn't particularly trust the stainless bolts. Chromed steel should be stornger. Anyone know how good the stainless rack bolts are.

    -Or where to get a few of either? I seem to recall an online bike shop that had just about any small part you could possibly want.
    mmmm coffeee!

    email: jfoneg (_"a t symbol thing"_) yahoo (_"period or dot"_) com

Posting Permissions

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