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Atom rear drum hub - 40h, BSC, excellent condition.

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Atom rear drum hub - 40h, BSC, excellent condition.

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Old 09-30-20, 10:28 AM
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oneclick 
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Atom rear drum hub - 40h, BSC, excellent condition.

This is a pull from a mid-80s Motobecane tandem. It's in excellent condition, see pics. 135mm locknut spacing, 40 hole, BSC freewheel thread. Cones and cups have no - zero - pits or blemishes (I use a loupe, I hate pits). There are nice shiny smooth ball tracks, even width all around. The cones are not the same as what I see in pics of this hub on the net, all those are a black finish, these are shiny; I don't know if this means anything. I've seen lots of ordinary Normandy and Atom cones, these are better finished. It is missing the cable anchor bolt and torque-arm fixing bolt; I will search the collection for suitable replacements - fortunately I have examples of the proper items, because...

I also have just got a second hub, almost the same, yet to be examined and prepared. The differences appear to be that this one does have the anchor and fixing bolts, has an axle slotted for tabbed washers, (the one now for sale has no slot); and as well the one for sale has a washer that looks as though it was added later - different finish and OD. For this hub I do not yet know the freewheel threading; nevertheless there will be another hub for sale soon.

Pics below are 20% size, if you want to see the full size ones just ask.









New balls will be supplied in the races. I also have the galvanized spokes, if you want them. This hub was laced to a 700c Rigida steel rim, spokes are 278mm and 2.15 dia by my measure except one set (FW outer?) maybe 280. I kept each set separate, all spokes are good, quite a few of the nipples not so, I will try to source replacements if someone wants the spokes.

80USD/60 GBP and I'll pay postage to anywhere in Canada/USA/UK. 15USD/10GBP extra if you want the spokes too, they'll push the package over 2kg and postage takes a biggish jump.

Last edited by oneclick; 09-30-20 at 10:35 AM.
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Old 10-01-20, 05:10 AM
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bwilli88 
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Nice piece, wish I had a project bike that this would work well with. GLWS
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Old 01-24-21, 05:11 AM
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Bump as I still have this - and a lot of the other tandem & motobecane bits, headset, front hubs, PU bar sleeve....
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Old 01-24-21, 06:54 AM
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Hmmm... the cat is getting curious... What’s the front hub? I have a mid 70’s Gitane tandem that is nearly unstoppable with steel rims.
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Old 01-24-21, 11:44 AM
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Originally Posted by mountaindave
Hmmm... the cat is getting curious... What’s the front hub? I have a mid 70’s Gitane tandem that is nearly unstoppable with steel rims.
This guy - uses a rear axle and bearings:




Won't help you stopping, but when you can't and run into whatever you're stopping for something else will break first.
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Old 01-24-21, 01:54 PM
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Originally Posted by oneclick
Won't help you stopping, but when you can't and run into whatever you're stopping for something else will break first.
I was thinking of building a set of wheels with alloy rims rather than the chromed steel. I am just hoping to slow down rather than erroneously giving my wife the impression that we are actually going to be able to stop.

This belongs in the “bonehead moves” thread but years ago my C/V-ness overtook rationality when I had one of the tandem’s busted wheels rebuilt with a matching steel rim despite urging by the mechanic to reconsider an alloy rim. This was before I started building my own wheels.
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Old 04-08-21, 02:59 AM
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It's springtime, stuff re-appears from under the detritus; bump.
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