I'm not sure whether the frame's rear dropout was bent
or the rear derailleur adjustment wasn't done properly,
but I often end up replacing spokes that get bent
when the chain drops inside the lowest gear.
I received a rear wheel from a customer—a Nomulab Wheel No. 6.
The spokes are bent and gouged.
↑The spokes have been scraped by the chain drop.
I built this wheel myself, so there's no way I can't fix it.
Separately, I also received a rear wheel from Planet X.
The rim is Equinox brand, which you can tell from the way the sides are finished,
and from the model number you can also tell it's from 2011.
The rim part number is WH038.
Not that it matters (well, it kind of does),
the left dropout came loose with just my hand.
Worryingly, there was already a small gap when I received it.
Were there no strange noises coming from it?
If you stop pedaling the moment you realize the chain has dropped,
you won't damage spokes around the entire wheel.
Though if you're climbing a steep hill standing up, that might be impossible.
Similarly, if the chain drops from the front chainring (especially inward),
if you stop pedaling the moment it drops,
you won't jam the chain between the frame and wheel.
The spokes are Pillar brand, the type that requires a slit in the flange hole.
I removed and weighed them to check the spoke weight ratio.
If I replace them with spokes of almost identical weight,
there won't be any loosening caused by tension variance after replacement.
I cut a Sapim CX that was 1mm longer
and weighed one of the same length. Nearly identical weight.
Actually, this one fluctuates between 36.8g and 36.7g,
so I could have taken a photo when they were exactly the same number,
but I took the photo at 36.7g because 0.1g difference seemed like I was fudging the data.
CX is stably supplied in even-mm increments,
so since the Pillar spoke was odd-numbered mm, I cut 1mm off.
Spokes made with a spoke cutter change weight ratio,
so if there was a CX of the same length originally, it wouldn't necessarily match this weight.
Also, the weight data of cut spokes doesn't accumulate as data,
but knowing the weight ratio of spokes that aren't stably supplied is useful.
The other day, when I said that a Pillar spoke with square aero
compared to CX with elliptical aero had nearly the same weight ratio,
I only knew that because of this.
All fixed.
↑Replaced spoke
Another separate job—
I received a C24 tubeless rear wheel from a customer.
This one also has all five outer spokes on the freewheel side requiring replacement.
Unlike the previous two, the damage is on the anti-porcupine-quill direction spokes
because this is reverse-Italian lacing.
The chain sits on top of the flange, so it gets scratched.
The flange is a through-type, so replacing requires pulling the spokes out.
But one was gouged like a banana peel, so I had to cut it.
Removed the spokes.
All fixed.
↑Replaced spokes
Anyway, this will probably also stop having spare parts supplied
in the near future, far sooner than you'd expect from the wheel's lifespan and how many are in circulation,
but for now, since they're still available, I'll refrain from saying such things. ←But I just said it anyway
or the rear derailleur adjustment wasn't done properly,
but I often end up replacing spokes that get bent
when the chain drops inside the lowest gear.
I received a rear wheel from a customer—a Nomulab Wheel No. 6.
The spokes are bent and gouged.
↑The spokes have been scraped by the chain drop.
I built this wheel myself, so there's no way I can't fix it.
Separately, I also received a rear wheel from Planet X.
The rim is Equinox brand, which you can tell from the way the sides are finished,
and from the model number you can also tell it's from 2011.
The rim part number is WH038.
Not that it matters (well, it kind of does),
the left dropout came loose with just my hand.
Worryingly, there was already a small gap when I received it.
Were there no strange noises coming from it?
If you stop pedaling the moment you realize the chain has dropped,
you won't damage spokes around the entire wheel.
Though if you're climbing a steep hill standing up, that might be impossible.
Similarly, if the chain drops from the front chainring (especially inward),
if you stop pedaling the moment it drops,
you won't jam the chain between the frame and wheel.
The spokes are Pillar brand, the type that requires a slit in the flange hole.
I removed and weighed them to check the spoke weight ratio.
If I replace them with spokes of almost identical weight,
there won't be any loosening caused by tension variance after replacement.
I cut a Sapim CX that was 1mm longer
and weighed one of the same length. Nearly identical weight.
Actually, this one fluctuates between 36.8g and 36.7g,
so I could have taken a photo when they were exactly the same number,
but I took the photo at 36.7g because 0.1g difference seemed like I was fudging the data.
CX is stably supplied in even-mm increments,
so since the Pillar spoke was odd-numbered mm, I cut 1mm off.
Spokes made with a spoke cutter change weight ratio,
so if there was a CX of the same length originally, it wouldn't necessarily match this weight.
Also, the weight data of cut spokes doesn't accumulate as data,
but knowing the weight ratio of spokes that aren't stably supplied is useful.
The other day, when I said that a Pillar spoke with square aero
compared to CX with elliptical aero had nearly the same weight ratio,
I only knew that because of this.
All fixed.
↑Replaced spoke
Another separate job—
I received a C24 tubeless rear wheel from a customer.
This one also has all five outer spokes on the freewheel side requiring replacement.
Unlike the previous two, the damage is on the anti-porcupine-quill direction spokes
because this is reverse-Italian lacing.
The chain sits on top of the flange, so it gets scratched.
The flange is a through-type, so replacing requires pulling the spokes out.
But one was gouged like a banana peel, so I had to cut it.
Removed the spokes.
All fixed.
↑Replaced spokes
Anyway, this will probably also stop having spare parts supplied
in the near future, far sooner than you'd expect from the wheel's lifespan and how many are in circulation,
but for now, since they're still available, I'll refrain from saying such things. ←But I just said it anyway