Joined: Apr 2010
Posts: 13,501
Likes: 996
From: Boston-ish, MA
Bikes: 72 Peugeot UO-8, 82 Peugeot TH8, 87 Bianchi Brava, 76? Masi Grand Criterium, 74 Motobecane Champion Team, 86 & 77 Gazelle champion mondial, 81? Grandis, 82? Tommasini, 83 Peugeot PF10
+1 on checking the measurements, especially the rim's ERD (and don't forget to add in the thickness of the nipple heads).
I'm writing from memory here but IIRC I've used both of these programs. For at least one rim I found an error or an ambiguity or something re ERD that made me dig up the other program, found the same problem even down to the same wording. It made me suspect that one had "borrowed" the database of the other, or they both "borrowed" the same database from elsewhere. In any case, the ERD is by far the measurement on which spoke length depends the most. It is worth checking.
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Real cyclists use toe clips.
With great bikes comes great responsibility.
jimmuller