Joined: Jan 2008
Posts: 23,642
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
Learning on bikes can be a lot of fun. I would go out tomorrow and buy a $10 digital caliper (they are on sale at Harbor Freight). Accurately measuring part sizes is very important on vintage bikes. And without an accurate measurement, you will not be able to get the right parts (OK, you could get lucky a few times).