I recently was offered a part in a delightful project, the
restoration of an iconic race bike to its showroom-new condition. It was a model and year of bicycle that I
lusted after when it was new and to this day regret never owning. I was asked
to build the wheels for this bike, and was honored to be chosen for that
request.
I had to turn this job, though, because it was not in the
best interests of the customer.
The customer a collector who devotes a lot to restoring a
bicycle to the condition it was in on the day it was made. Projects like this
can take years and untold amounts of money.
It is a labor of love that can produce stunning results. The collector
goes to great length to find exactly the right parts in new condition.
How exact is “exactly the right part?” is the barrier this
job ran up against.
The job called for a certain brand and model of spokes that
have not been readily available for 30 years. The customer had found some, but
they are too long. I’m not quite sure how much too long, but they are just long
enough to be out of my confidence range.
I do not have his rims in front of me, so I was not able to
do exact measurements, but there is a range of effective rim diameters (ERD)
that covers all classic tubular rims. I ran his spoke length through two
reliable spoke length calculators, and his spokes are a minimum of 2 mm too
long and more likely 3 mm long. I am not comfortable with spokes more than 1.5
mm too long or too short.
These spokes are new in the box, and cannot be replaced at a
reasonable cost if I build the wheel and find that the length is beyond the
range that I can comfortably use, I can neither replace them with spokes of the
correct length nor return them to the customer as “new in the box.”
The spokes in question are also chrome plated. Of all of the
types of spokes that can be cut to length with a Phil Wood spoke machine,
plated spokes are conspicuously absent.
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