Another wheel day (and so on).
I received the front wheel of a Racing Zero from a customer.
They wanted truing work from a crash.
Initially it was just supposed to be an inspection, and the rear wheel was straightened with truing,
but the front wheel had my suspicions (or rather, certainty) that the rim was bent, so it needed replacement.
I made one last-ditch effort to true just the lateral wobble,
but doing so revealed some really bad radial runout.
I disassembled it.
There was a stuck spoke that I just couldn't loosen.
I knew forcing it would snap it, so
I deliberately left it as is.
The spare rim (which looks very similar, but is not a spare rib)
comes as a sticker-sold-separately specification.
It's assembled.
On the original rim,
the customer had applied tape—apparently concerned about the tube contacting
the rim joint directly.
With Mavic Ksyrium and similar rims,
the manufacturer applies tape for that purpose
(though the width does shrink from brake heat).
Also, the Racing Zero rim
has a small hole drilled at a phase slightly away from the valve hole.
Even with 2WAY-FIT rims, this hole exists,
and it's been deliberately plugged afterward, so
it seems to be necessary for manufacturing (perhaps for air venting?).
With the rim joint and this hole, there's no problem with putting the tube directly in,
but the customer seems concerned about it, so
I applied tape-type rim tape in one complete wrap.
There was a bent spoke, so I replaced it.
Including the spoke with the stuck nipple, I replaced a total of 2 spokes.
When I first started the work,
I thought there might be 3 or 4 spokes bent like this
on one side of the wheel, given the amount of runout,
but in reality only 1 spoke was actually bent,
and the main cause of the wobble was the bent rim.
I checked it against a glass surface plate, and it was bent enough that
I couldn't assemble it without spoke tension variation
(confirmed when I disassembled the wheel, not after rim replacement), so
I replaced the rim.
I received the front wheel of a Racing Zero from a customer.
They wanted truing work from a crash.
Initially it was just supposed to be an inspection, and the rear wheel was straightened with truing,
but the front wheel had my suspicions (or rather, certainty) that the rim was bent, so it needed replacement.
I made one last-ditch effort to true just the lateral wobble,
but doing so revealed some really bad radial runout.
I disassembled it.
There was a stuck spoke that I just couldn't loosen.
I knew forcing it would snap it, so
I deliberately left it as is.
The spare rim (which looks very similar, but is not a spare rib)
comes as a sticker-sold-separately specification.
It's assembled.
On the original rim,
the customer had applied tape—apparently concerned about the tube contacting
the rim joint directly.
With Mavic Ksyrium and similar rims,
the manufacturer applies tape for that purpose
(though the width does shrink from brake heat).
Also, the Racing Zero rim
has a small hole drilled at a phase slightly away from the valve hole.
Even with 2WAY-FIT rims, this hole exists,
and it's been deliberately plugged afterward, so
it seems to be necessary for manufacturing (perhaps for air venting?).
With the rim joint and this hole, there's no problem with putting the tube directly in,
but the customer seems concerned about it, so
I applied tape-type rim tape in one complete wrap.
There was a bent spoke, so I replaced it.
Including the spoke with the stuck nipple, I replaced a total of 2 spokes.
When I first started the work,
I thought there might be 3 or 4 spokes bent like this
on one side of the wheel, given the amount of runout,
but in reality only 1 spoke was actually bent,
and the main cause of the wobble was the bent rim.
I checked it against a glass surface plate, and it was bent enough that
I couldn't assemble it without spoke tension variation
(confirmed when I disassembled the wheel, not after rim replacement), so
I replaced the rim.