J
John Everett
Guest
Even though I've now ordered the spokes I was writing about when I
started the ERD thread, I still never received a clear answer to my
original question. Let me rephrase:
Should ERD actually be the diameter of the circle defined by the ends
of the spokes in the built wheel? If so, should the end of the spokes
theoretically be even with the top of the nipple, or buried somewhere
inside the nipple? If buried, should they be even with the outside
surface of the rim holes, or even with the bottom of the screwdriver
slot?
Note that we're talking about millimeter differences here, which
strikes me as a bit like discussing the number of angels the can dance
on the head of a pin. ;-) I've re-rimmed wheels with rims that were
5mm larger in published ERD than the originals without problems. Makes
me wonder how many nipple threads actually need to be engaged to build
a safe wheel.
I'm guessing from Jobst's response in my OP's thread that ERD is
precisely defined in "The Bicycle Wheel", but I've managed to build a
number of wheels without ever reading it.
--
jeverett3<AT>sbcglobal<DOT>net (John V. Everett)
started the ERD thread, I still never received a clear answer to my
original question. Let me rephrase:
Should ERD actually be the diameter of the circle defined by the ends
of the spokes in the built wheel? If so, should the end of the spokes
theoretically be even with the top of the nipple, or buried somewhere
inside the nipple? If buried, should they be even with the outside
surface of the rim holes, or even with the bottom of the screwdriver
slot?
Note that we're talking about millimeter differences here, which
strikes me as a bit like discussing the number of angels the can dance
on the head of a pin. ;-) I've re-rimmed wheels with rims that were
5mm larger in published ERD than the originals without problems. Makes
me wonder how many nipple threads actually need to be engaged to build
a safe wheel.
I'm guessing from Jobst's response in my OP's thread that ERD is
precisely defined in "The Bicycle Wheel", but I've managed to build a
number of wheels without ever reading it.
--
jeverett3<AT>sbcglobal<DOT>net (John V. Everett)