Re: [CR] Hubs [flange heights and now spoke crossings]

(Example: Production Builders:Cinelli:Laser)

Date: Sat, 9 Jan 2010 09:35:06 -0500
From: "Harvey Sachs" <hmsachs@verizon.net>
To: <barriemgracer@yahoo.co.uk>, Classic Rendezvous <classicrendezvous@bikelist.org>
Subject: Re: [CR] Hubs [flange heights and now spoke crossings]


Kevin Sayles and Barrie Carter make some important points I'd like to comment on.

RENAMING: "The term High Flange is wrong and a recent renaming." HS: I'm sure you're right, but I think the renaming is helpful, though. I think it was pushed by Sheldon Brown. "LF" could be either low flange or large flange, while HF and SF are perfectly clear.

FASHION v. FUNCTION: here is no evidence for greater strength or stiffness for high flange hubs. Jim Papadopoulos ran the equations real hard. In a blind test, the difference between HF and SF is like a tire pump stroke or two. Just can't tell it. Same, as I recall Jim's work, about the difference between radial and all the way to 4-cross - except for needing some tangentiBut, there are opinions.

But, fashion matters in understanding what they did, and why, and thanks for the explanations!

harvey sachs
mcLean va