Titanium bolts have arrived!
Cap screws are bolts with a cylindrical head and
a hex socket.
First up, M5 with 20mm under-head length.
This is the size used for the four mounting bolts
on the handlebar clamp side of most stems.
Many come with 18mm under-head length, but we can cut 2mm off if needed,
so please let us know when you purchase.
If the stem column clamp bolt is also M5, you could use these there too, but
I'm not a big fan of titanium bolts on the column side,
so I don't really recommend it.
Also, the column side requires more precise under-head length setting.
（If the bolt protrudes too far, it can cut your knees during standing climbs）
These have threads right from below the head, so they work great
as bottle cage mounting bolts too.
Aluminum is lighter by weight, it's true,
but anodizing does wear away over time, so choosing
titanium bolts with superior weather resistance is a solid option.
As a side note, anodizing is the kind of surface treatment
you see on the headset spacer in the photo above.
It coats the aluminum surface with a uniform oxide film, so
theoretically it's the same as "intentionally oxidizing it to this color."
Since it's an oxide layer, discoloration and corrosion aren't completely avoidable.
M6 with 40mm under-head length is also in stock.
I sourced these as head cap bolts.
This is another area where aluminum could work in theory, and aluminum would be lightest,
but the head cap is where sweat drips, and sometimes people end up
corroding their stems from this area alone.
So some riders prefer titanizing over aluminizing here,
which is why I decided to stock it.
Cap screws are bolts with a cylindrical head and
a hex socket.
First up, M5 with 20mm under-head length.
This is the size used for the four mounting bolts
on the handlebar clamp side of most stems.
Many come with 18mm under-head length, but we can cut 2mm off if needed,
so please let us know when you purchase.
If the stem column clamp bolt is also M5, you could use these there too, but
I'm not a big fan of titanium bolts on the column side,
so I don't really recommend it.
Also, the column side requires more precise under-head length setting.
（If the bolt protrudes too far, it can cut your knees during standing climbs）
These have threads right from below the head, so they work great
as bottle cage mounting bolts too.
Aluminum is lighter by weight, it's true,
but anodizing does wear away over time, so choosing
titanium bolts with superior weather resistance is a solid option.
As a side note, anodizing is the kind of surface treatment
you see on the headset spacer in the photo above.
It coats the aluminum surface with a uniform oxide film, so
theoretically it's the same as "intentionally oxidizing it to this color."
Since it's an oxide layer, discoloration and corrosion aren't completely avoidable.
M6 with 40mm under-head length is also in stock.
I sourced these as head cap bolts.
This is another area where aluminum could work in theory, and aluminum would be lightest,
but the head cap is where sweat drips, and sometimes people end up
corroding their stems from this area alone.
So some riders prefer titanizing over aluminizing here,
which is why I decided to stock it.