Any Titanium bolts on your bike?

b.bodegraven

My retro Panasonic team Eddy Merckx with super record from approx 1977 has a titanium derailleur mounting bolt. I was amazed to find out Dura ace 7800 (2004) has a steel rear derailleur mounting (to the frame) bolt. "Why not titanium???".

So I wondered which titanium bolts did all of you place on your bike and did you consider them safe for their purpose after some experience? In other threads I see the bolt heads are prone to wear out from tools. But safety is my prime concern
Me? Only expander top cap bolt. Good experience but only tried for two weeks yet. And yes the derailleur super record bolts.. good since 1977

ugo.santalucia

There was a point in the 80s when titanium became fashionable as a way to save weight and retaining the same strength as steel.
The reality is that a derailleur titanium bolt will probably weigh 5 grams less than an equivalent steel bolt... for small bolts the saving is even less.
In other words, it's not worth paying premium for a titanium bolt

thistle_

Aren't they also prone to bimetallic corrosion when in contact with aluminium or steel if not installed correctly?
Not usually a safety problem but you won't be able to get it out.

imposter2.0

Bring back the 90s....

brundonbianchi

My bottle cage bolts are Titanium. Celeste anodised as well.

siddy1972

My 3t ARX stem has. But only because it’s what it came with. They’re Torx, so no problem with rounding. No surface rust either like SS bolts seem to get even though they shouldn’t.
I slap a bit of Aquaproof paste on anything threaded to prevent corrosion (I hope).

manglier

thistle_(mbnw) said:

Aren't they also prone to bimetallic corrosion when in contact with aluminium or steel if not installed correctly?

Short answer is no. The Ti bolts will not corrode, however if they are in contact with say an Aluminium alloy part it is that which will tend to corrode in the presence of an electrolyte. Think of Ti bottle cage bolts where the Rivnuts are alloy and that's where you should assemble using a jointing compound (Duralac),

davidof

Bottle cage bolts
Stem bolts

- only because the stainless ones always end up rusting

the_cyclist_of_catan

Ditto. It’s not a weight or strength issue for me, but I do like that they absolutely do not rust or tarnish. I use Torx T25 headed bolts, so have no issues with tools rounding them.