|Component parts of a tire.|
This stuff is the casing materials and tread material. I'll go through what it all is here for you.
- Starting from the upper left, the hairy looking bunch of strands is the fibers used to make a casing strong enough to resist blowing apart under pressure of the air and helps the tire withstand the blows received while riding. Without these nylon threads, your tire would come apart. Think of this stuff as the foundation of the casing. In this case, these are 60TPI threads.
- Moving clockwise to the amber looking stuff, this is more nylon thread for casing construction. In this instance, they are 120TPI, the maximum thinness for nylon threads for bicycle tire casings. You can really feel the difference when handling these samples too.
- The white stuff is 300TPI core spun cotton. Think "Grandmas best table cloth". This is soft, luxurious feeling stuff. The cotton gives high end tires their super cushy, smooth ride feel. This is put together with the nylon threads to construct a high end tire casing.
- Next up we have the middle, black, shiny looking material. This is 1 ply "green", (non-vulcanized), material which has the nylon threads in it to reinforce it. This is folded two to three times and vulcanized with a tread.
- And finally, we have the tread strip which the rest is bonded to via vulcanization.