Thanks for your exhaustive answers - this stuff is really hard to research. I hadn't realized that a 'driver' was part of the hub. Although mechanically inclined, I am new to bikes so I still have to get up to speed on the terminology.
I don't think I would be up to changing out an AW axle, but since my back rim is not original anyway, I am going to use a roadster AW which has the long axle in it already, and build it up with an aluminum rim. I don't know that I would ever find a Dunlop light weight to match the front anyway.
Mark
-- mark assaf 109 clarendon road burlingame ca 94010 (650) 343-7068 http://www.sciencemonster.net ebay:sciencemonster aim:evldad666 yahoo:notmathbright
Mark Stonich wrote:
> At 9/2/2007 08:39 PM -0700, mark assaf wrote:
>> You hit the nail on the head - someone emailed me with a 3 speed
>> freewheel, an Atom, and that seems perfect
>
> As long as it has English threads.
>
>> - the gears are exactly what an old fart needs - a 19 for cruising, a
>> 21 for hills, plus a 16 for those rare occasions I feel spry.
>
> The most common (at least in the US) Cyclo Benelux is 15-19-23. I've
> never even seen a closer ratio one. (In my case, the 15 will be purely
> decorative. :-))
>
>> Not sure what you mean about interchangability - how can a spined and
>> a threaded cog be interchanged? The clubman has threads on it for the
>> cog - I had never seen one like that on any of the other 12 3 speeds I
>> have.
>
> I meant that it only takes a few minutes to swap drivers between hubs.
> Many older hubs have had the drivers replaced as they do wear out. So I
> don't consider replacing them to be much less "original" than using
> newer tires or chains.
>
> I'm all for any modification that lets us old guys keep riding, at
> least any that can be easily undone. But with a derailleur on a Clubman,
> no one is going to notice that the driver isn't original.
>
>> Also - that two cogs on at the same time - that looks pretty ballsy!
>> Does that really work!?!?
>
> Two on a threaded driver sounds iffy but two on a splined one is rock
> solid. The only thing to watch out for is that some older SA 22t cogs
> have an odd tooth shape, very "pointy" when viewed from the side. These
> will skip when used with a derailleur. I have the right type, NOS, if
> you want one.
>
>> I'd love to try that, however I have to stick with 1/8 chain to
>> preserve the front chain wheel.
>
> Could be a problem with some older chains, but not with newer 1/8"
> ones. If you try the idea with one cassette cog, use a SRAM chain.
> With two dished 3 speed cogs any newer chain will work.
>
>
> Mark Stonich;
> BikeSmith Design & Fabrication
> 5349 Elliot Ave S. - Minneapolis. MN 55417
> Ph. (612) 824-2372 http://bikesmithdesign.com
> http://mnhpva.org