Originally Posted by
Charles Wahl
Trek made a lot of models with frame tubes Reynolds 531, and all the fork and stay tubing Ishiwata. While that may have added a few ounces, these are bikes with a ride that people really like. And they're no slouches in the weight department, either. So if you eliminate frames with straight-gauge forks/stays, or mixed tubing sets, you're excluding a lot of nice bikes (more for me!) from your C&V universe.
The Ishiwata 022 stays and fork blades used on many Trek "531 main tubes" models were identical in composition and physical dimensions to Columbus SL stays and blades so it is unlikely that any weight was added in using these parts. They were used because they cost less than Reynolds 531 and provided a salient distinction between models.