Back by popular demand, the general all-things Road forum!
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carbonLORD
- in the industry
- Posts: 459
- Joined: Fri Jan 23, 2004 6:31 pm
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by carbonLORD on Wed Jan 15, 2014 6:14 pm
alanjob wrote:Hi all.
@carbonlord
im not worried about the gram savings, more worried about corrosion.
Alan
Gotcha.
This being the WW forum I assumed.
carbonLORD.com
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drainyoo
- Posts: 789
- Joined: Sun Jun 17, 2007 6:56 pm
by drainyoo on Wed Jan 15, 2014 6:58 pm
madcow wrote:I would strongly agree with DMF about ti bolts. Most far east ti comes ungraded and varies greatly in it's quality. I know of one company that switched from far East ti to U.S. made ti even though it was more expensive, they stated that with the far East ti they had been receiving it had a 30-35% failure/rejection rate when testing.
I've seen plenty of ti bolts in stems with the heads popping off, not from crashes, but just from general use. The only redeeming thing is that there is redundancy in the bolts. It's pretty rare that more than one bolt brakes at a time, so usually failures are not catastrophic. I have seen just a couple times where two bolts snapped at the same time, but not frequently.
My advice if you want ti for a stem, go with a known and graded ti such as probolt.
I always get my ti bolts from Jersey Cycles, but not sure of the quality of if they're graded. No issues so far, though.
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campagnolo321
- Posts: 30
- Joined: Sat Dec 21, 2013 7:17 pm
by campagnolo321 on Wed Jan 15, 2014 8:26 pm
carbonLORD wrote:Not a wise place to look for gram savings.
My concerns would be creaking and pinging.
Titanium bends and is too soft.
Save grams in inner tubes where it matters (rotational weight).
Just an opinion.
So you would'nt suggest buying your brakes then ?
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alanjob
- Posts: 67
- Joined: Fri Mar 06, 2009 1:13 pm
- Location: Northern Ireland
by alanjob on Wed Jan 15, 2014 10:04 pm
Hi guys
I fitted the titanium bolts and washers. Seem to be strong enough but I think ill order some off pro-bolt to be sure.
Only problem the cheap tape I used to mark the bars has removed some of the print the bar. Any ideas how to remove it completely?
Alan
Sent from my iPhone using Tapatalk
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kac
- Posts: 361
- Joined: Sat Dec 04, 2010 5:31 pm
by kac on Thu Jan 16, 2014 6:23 am
If I recall correctly, the bolts in the Extralite OC Road Stem are titanium. I've had that stem in place for >2 years and (so far), I've had no trouble. But, some of the comments on this thread have me a bit worried...
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DMF
- Posts: 1062
- Joined: Sat Dec 06, 2008 10:14 am
- Location: Sweden
by DMF on Thu Jan 16, 2014 7:14 am
I can think of atleast 30 stems right off the top of my head that come standard with Ti bolts. There are no worries (except for the old 3T ARX Team stuff). As long as you recognize the difference between Ti bolts and Ti bolts... (as per mentioned multiple times in this thread).
And to the OP with the Bontrager stem, "seem to be strong enough" is a laughable way of gauging things, esp. for an engineer no matter what field. Please don't ride those bolts with the stem.
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alanjob
- Posts: 67
- Joined: Fri Mar 06, 2009 1:13 pm
- Location: Northern Ireland
by alanjob on Fri Jan 17, 2014 9:36 am
@DMF
LOL, ill order some bolts from pro-bolt. ive fitted the bolts as this is my good bike and ill not be riding it till the better weather.
Thanks guys for all your inputs.
Alan