|Does anyone use titanium hardware?||Major Kong|
Aug 15, 2003 5:01 AM
|The allen bolts on the faceplate of my Ritchey Pro stem are rusting. I was thinking about replacing them with titanium ones. Good idea or bad idea? Potential problems? Please let me know what you think.
Thanks in advance.
Aug 15, 2003 5:28 AM
|I got a box of 100 M5 x 16mm stainless steel socket head cap screws from www.mcmaster.com for about $6. Now I've got a lifetime supply of bolts for stems, water bottle cages, etc. While you're ordering, it's wise to get a supply of bolts for the seatpost clamp, stem clamp and top cap (usually M6). Some of the larger sizes/lengths can be ordered individually.
Ti bolts are expensive and more easily broken. The stainless steel bolts won't rust and they are extremely difficult to break.
Aug 15, 2003 6:19 AM
|In critical applications, you may want to use the strongest hardware you can get. While I use a lot of Ti and even aluminum bolts, in places where a failure could cost you your life, and where you don't get much benefit from the weight difference, I'd use the strongest possible.
In open face stems, breaking either face plate bolt could cause you to lose control and crash. The weight savings won't even be a gram, or less than 1/7000 of the weight of even a light bike.
For larger applications, like crank bolts, seatpost bolts, rear derailleur main bolts, I use the lighter bolts. Failure there, if any, likely would occur when tightening the bolt, rather than while riding, I'd think.
|Think about it...||Fez|
Aug 15, 2003 6:36 AM
|I'm not a weight weenie, but even if I was, Ti bolts would be the absolute last thing I would do. You could save more weight by upgrading one key part than you could by upgrading every single bolt on your bike to Ti.
And there are some bolts I would never mess with, like the stem bolts. A bolt failure there can result in a horrible accident.
Stick with the the original style bolts, just get new ones.
Aug 15, 2003 7:05 AM
|I needed some random metric bolts, so when at the bike shop my buddy told me to rumage through 'that box over there where all the crap goes'. Well, I found a few new titanium bolts in there, and used then for the top cap, seat post clamp, stem bolts and face plate. Had them, might as well use them. The safety is not compromised, since the torque specs of the stem are much lower than the shear strength of the fasteners such that the bolts would rip out before the bolts would break. When I raced Superbikes (135 horse power, 400 pound motorcycles) almost all the fasteners were titanium, including those which held the brake calipers, the sproket and most high stress engine bolts and never had one fail.|
Aug 15, 2003 9:13 AM
|The tensile strength of 6/4 Ti is plenty strong for most bicycle application.|
|Yes, and aluminum alloy||pedalAZ|
Aug 15, 2003 9:05 AM
|I've replaced all the bolts on my brakesets and derailleur clamps with aluminum, which is much lighter than Ti.
Stem bolts remain steel for the reasons explained above. My cassette lockring is aluminum, for weight, despite a real nice Ti one from Chris King sitting on the parts shelf. My crank bolts are Ti, but whenever I remove and replace the crank arms, I cinch them up tight (square taper spindles) with steel bolts, and then carefully install the Ti ones afterwards, using a torque wrench. The Ti bolts are more elastic than steel, and when you over tighten them, they can be stressed.
|Don't even think about it...||rogue_CT1|
Aug 15, 2003 2:51 PM
|the little bit of weight savings isn't worth it. Hopefully you don't have to wipe out to understand why. My Ti bolts snapped without warning on my TTT Zepp stem. While I was holding my handlebars and steering left at the same time watching my front wheel and stem steer to the right I realized that the added bit of safety was well worth the 5 grams I had saved. Go with the steel screws!!!!!|| |