Joined: Jan 2008
Posts: 23,641
Likes: 1,106
From: Mans of NC & SW UT Desert
Bikes: 86 Katakura Silk, 87 Prologue X2, 88 Cimarron LE, 1975 Sekai 4000 Professional, 73 Paramount, plus more
Also consider most if not all tubing suppliers had multiple grades. Tange has five grades, from Tange 5 (low grade) to Tange 1 (best grade).