I'm guessing you're referring to an Ishiwata 017 tube set?
They also made 015 steel tubes that were even lighter but weren't recommended for general use. I'm not sure how the weight of 017 compares to modern steel alloys from Reynolds, Columbus or Dedacciai.
I'm guessing you're referring to an Ishiwata 017 tube set?
They also made 015 steel tubes that were even lighter but weren't recommended for general use. I'm not sure how the weight of 017 compares to modern steel alloys from Reynolds, Columbus or Dedacciai.