Re: [CR]Broken flanges on high flange hubs/Slot Hub/Aero Spokes

(Example: Events:Cirque du Cyclisme:2002)

From: "Stephen Barner" <steve@sburl.com>
To: <classicrendezvous@bikelist.org>
References: <ea.5d0b2a5a.2ed3516a@aol.com> <75d04b480411221109540c84de@mail.gmail.com>
Subject: Re: [CR]Broken flanges on high flange hubs/Slot Hub/Aero Spokes
Date: Mon, 22 Nov 2004 15:16:35 -0500


Given that small flange hubs sometimes broke without any prior hole enlargement, I can't imagine that slotting the spoke holes in a small-flange hub would do anything but decrease strength further. However, since those interested in aero spokes should already be working with a hub for fewer than 36 spokes, the additional space between spoke holes should compensate for the slotting. I would not do anything to the holes on a 36 hole small-flange hub, other than to stick spokes in them.

I do think that it is important to keep the spoking direction when reusing hubs. It looks better and it's better for the hub. Sometimes this is not possible, as when the replacement rims are drilled differently than the originals, but a wheel builder should still try to match spoke direction as much as possible. I will usually change my spoking pattern preferences to match that used previously on a used hub.

Steve Barner, Bolton, Vermont


----- Original Message -----
From: Kurt Sperry
To: okvelo@aol.com
Cc: tsan7759142@comcast.net


<classicrendezvous@bikelist.org> Sent: Monday, November 22, 2004 2:09 PM Subject: Re: [CR]Broken flanges on high flange hubs/Slot Hub/Aero Spokes


> > A hub that is slotted properly for aero spokes should not be problematic
> >
> > Any hub that simply has spoke holes enlarged very likely will be problematic
> > down the road
> >
> > Chuck Davis
>
> I'm not entirely sure these were produced in the CR timeline but I
> built a wheel using headless Hoshi aero spokes on a vintage Campagnolo
> Record small flange hub many years ago that didn't require slotting
> the hubs. I was a little skeptical then, but the wheel has held up to
> thousands of miles of riding. I'd probably still be riding it if I
> hadn't realized how ugly it is.
>
> Kurt Sperry
> Bellingham WA