Anthony Anagnostou said:I want to build wheels, but the parts prices are prohibitive (ya' like that alliteration?). It
kills me how I can buy a wheelset cheaper than I can buy its parts and build it myself.
Quoted message said:Anyways, I can get hold of cheap rims and cheap hubs? However, I've never seen cheap spokes. If
all I want is a simple straight 14g set of spokes, isn't there a generic I can buy somewhere? I've
only ever seen the name brands for sale. What do department store bikes use? The ones around
campus don't seem to be rusting.
Quoted message said:Yes. I'm sure one can only find name brand for a reason, but I can't help but wonder why a cheaper
stainless spoke can't be made/sold. No butting. No blades.
It took the principal spoke manufacturers many years to develop a wire from which durable spokes
could be formed. A wire that must have high tensile strength and high ductility for forming and
installing spokes it in a wheel, an operation that causes additional plastic deformation. Not long
ago spoke failure was so common that most riders carried spare spokes, a spoke wrench, and a
freewheel remover.
Today, spoke material and manufacture has improved substantially, and I believe partly as a result
of understanding how spokes are stressed in use as well as what causes failures, something that was
not generally known until recently. Spoke steel is not the same as ordinary structural or wire
stainless steel, its requirement of high strength and ductility being contradictory. Tensile tests
of better spokes (name brand) show that his has been achieved today.
It isn't worth your while to build wheels with anything but a reputable brand name spoke, and these
are all relatively expensive. Your best bet is to look for a better price rather than lesser
quality. While you're at it, you might also reconsider your choice of straight gauge spokes. Butted
(or swaged) 1.6-1.8mm spokes are probably the best choice for a wheel.
Thinner spokes wind up excessively from tightening torque unless special skills are used. When you
think spokes, think long screws and that a screws usually fail in their threads, the smallest cross
section. Machine screws designed for high cyclic loads are often "strain screws" with a mid section
smaller in diameter than the root of the thread, essentially swaged spokes.
Jobst Brandt [email hidden] Palo Alto CA