I wrap my chain stays with an old tube. I find it works best with an old road tube (not a wider MTB tube)

1. Cut the tube near the stem to remove the stem
2. I wrap from rear to the front
3. Start a few inches forward of the rear axle area.
4. Wrap backwards towards the rear axle, overlapping about half the width of the tight/flattened tube.
5. Once at the axle area, start moving forward
6. Keep the tube tight and flat, overlap about half width all the way to where you want to finish
7. cut the tube to length, I like to finish on the inside of the chain stay
8. Keep it closed by wrapping some electrical tape. I make sure to note get any tape on the frame, just the rubber tube.

I find this to be very similar to wrapping my road drop handlebars.

Never done any more than chain stays but have seen it on some downtubes.

I wrap my chain stays with an old tube. I find it works best with an old road tube (not a wider MTB tube)

1. Cut the tube near the stem (on both sides of stem) to remove the stem
2. I wrap from rear to the front
3. Start a few inches forward of the rear axle area.
4. Wrap backwards going towards the rear axle, overlapping about half the width of the tight/flattened tube.
5. Once at the axle area, start moving forward, going over the few inches you just put down
6. Keep the tube tight and flat, overlap about half width as you wrap all the way to where you want to finish (close to front chainrings)
7. Cut the tube to length, I like to finish on the inside of the chain stay
8. Keep it closed by wrapping some electrical tape. I make sure to note get any tape on the frame, just the rubber tube.

I find this to be very similar to wrapping my road drop handlebars.

Never done any more than chain stays but have seen it on some downtubes.