Bike Forums - View Single Post - Dynohub Age and Use

10-09-09 | 08:13 AM

#10

rhm

multimodal commuter

Joined: Nov 2006

Posts: 19,810

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From: NJ, NYC, LI

Bikes: 1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...

Quote:

Originally Posted by SirMike1983

Prior to 1952 the adjustment cone was underneath the dynamo unit. I was wondering whether this added to the level of difficulty in refreshing the bearings. Have you ever worked on a pre 1952 unit?

Is only one cone adjustable? I assume you're talking about a front dynohub, correct? I have a rear dynohub from '51 or '52 (can't remember) but I haven't done much with it (I'm not even sure it works) which is why I've been silent on this question. With the front hub, if you can't adjust the cone under the dynamo (on the right side of the hub), isn't it still possible to adjust the left side cone? If so, that should be enough. It would be nice to grease the bearings, of course....

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