At 09:56 AM 9/11/06 -0700, Donald Gillies wrote:
>Why were the wedges always made of steel? it seems nonsensical to
>make one side of the wedge of aluminum, and the other side out of
>steel, and the wedge looks chunky enough that it could be made of
>aluminum.
1. Aluminum against aluminum is likely to seize.
2. An aluminum wedge would be strong enough, but the thread may eventually
strip.
3. Sheldon mentioned the ribs. These would be less effective with an
aluminum wedge.
>Does anyone know a source of aluminum wedges for my ALAN light bike?
It should not be too hard to make one. You don't need (or really want) the ribs. You can also get titanium expander bolts, which are very light. Somebody gave me one. It almost feels as light as aluminum, but doesn't fit anything I have.
John Betmanis
Woodstock, ON
Canada