Nice idea about how to carry spare spokes within the seat post.May I ask how many you carry?
Front and rear?
Sherpa, two per wheel. But, when I bought the spokes to build up those wheels the store sold enough spokes for a wheel plus two spares for a lump sum price, so they determined how many spares I had.
Nomad, I do not recall how many, maybe 4 or 6 for the rear and fewer for the front? For that bike, the spokes came in a bag of 50 and I did not want to carry all 14 spares. (I might be the only one out there that has 36 spoke wheels for both front and rear on my Nomad.) But since that bike was bought specifically for rough terrain, I probably carry too much for spares in an abundance of caution. When mountain biking with suspension seatpost, carried none because that has a spring in the seatpost, but I was close to a vehicle with spares.
Before I got rid of the Long Haul Trucker, carried one front and one rear, the LHT had a spare spoke carrier on the frame that held two. Now that I think about, since rear spokes are the most likely to fail, I probably should have carried two for the rear.
I somehow put a bad bend in a spoke in Iceland, and the spoke was loose. I am still unsure what happened, I was afraid that I jammed a rock between the spoke and a frame stay which caused the nipple threads to strip out and loosen the spoke, but I could tighten it up with a spoke wrench so that was not the case. See photo. So, I have no clue what happened here.