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AJS 7R rear hub #396123
09/25/11 6:01 pm
09/25/11 6:01 pm
Joined: Feb 2011
Posts: 3,425
Orygone
Boomer Online content OP

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I'm going to be rebuilding a featherbed chassie that has 7R wheels and hubs so I'm looking for any info and especially photos of the hubs.

Thanks


Boomer
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Re: AJS 7R rear hub [Re: Boomer] #396146
09/25/11 10:04 pm
09/25/11 10:04 pm
Joined: Feb 2003
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Ohio
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Rickman Offline
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Ohio
Boomer,
I asked for pics on another forum I'm on, and the person that answered so far, has said a common exchange to do was conical hubs from later BSA or triumph.

I'm NOT saying you don't have 7R hubs....

He also said 7R wheels covers many years.... And that your request was rather vague?

If you have hubs and/or wheels already, maybe I ought to ask for pics of what you have?
Brett
Rickman56@gmail.com

Re: AJS 7R rear hub [Re: Boomer] #396281
09/26/11 8:02 pm
09/26/11 8:02 pm
Joined: Nov 2010
Posts: 39
east midlands, england
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mwebb Offline
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east midlands, england
You will find some pictures of Matchless G50 front & rear hubs on the following website www.mfcpatterns-castings.co.uk
As far as i know both the Matchless G50 and the AJS 7R used the same front & rear hubs, regards, Martin

Re: AJS 7R rear hub [Re: Boomer] #396302
09/26/11 10:27 pm
09/26/11 10:27 pm
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Hey Brett, they are 7R hubs and the next time I go to the storage I'll get some pictures.

Martin, from what I've learned so far is that the 7R front hub's backing plate is on the left where the Manx was on the right. I think they did that to use the Matchless/AJS brake arm set-up.On thing I'm missing is the small hub covers. I've seen some that are plain and flat and others that have louvers or slots for air scoops. Thanks for the link.

Bill


Boomer
Re: AJS 7R rear hub [Re: Boomer] #396470
09/28/11 1:45 am
09/28/11 1:45 am
Joined: Aug 2001
Posts: 2,068
Oztralia
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Rohan Offline
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Oztralia
Originally Posted By: Boomer
On thing I'm missing is the small hub covers. I've seen some that are plain and flat and others that have louvers or slots for air scoops.
Bill


That depends on the year of your hubs.
The louvred ones direct cooling air through the hubs.
On a roadbike, probably the last thing you need. Unless you intend canyon-carving at race speeds ?

Magnesium ex-racing parts should always be crack-tested or x-rayed.

Re: AJS 7R rear hub [Re: Boomer] #396602
09/29/11 12:49 am
09/29/11 12:49 am
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So here's some pics of the hubs. The PO's story was that this was a Manx/Vincent and that the wheels were Manx along with some other goodies, like triple trees, front forks, maybe swingarm. It's a wideline chassie that I believe was off an early twin. I think the front hub is G50/7R as it is on the drive side and it uses the Matchless/AJS brake stay arm. The tank and seat are Dunstall style fiberglass. One question I have is the weld bead on the rear hub. Is that a repair or is that what the factory covered up with the hub plate?

Front Hub



Rear Hub, check out the weld on the offside



Boomer
Re: AJS 7R rear hub [Re: Boomer] #396626
09/29/11 3:26 am
09/29/11 3:26 am
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Oztralia
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Rohan Offline
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Oztralia
Its a bit hard to tell from the angle the pic was taken, but that appears to be a manx rear hub. And brake.
Despite the dodgy anchor.
Removing brakes and showing internals would say for sure.

Weld wasn't standard.
Old ex-race magnesium hubs should always be crack tested or x-rayed.

Cheers !.

Re: AJS 7R rear hub [Re: Boomer] #396637
09/29/11 6:00 am
09/29/11 6:00 am
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So mate,

what's the difference between a Manx and a G50/7R rear hub and do you know what vintage I have here? Where might I find the hub covers?


Boomer
Re: AJS 7R rear hub [Re: Boomer] #396640
09/29/11 7:17 am
09/29/11 7:17 am
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Oztralia
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Rohan Offline
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Mid 1950s, without seeing the insides.
Manx hubs don't have hub covers.

A manx hub was made by Nortons, and uses Norton parts.
A 7R hub was made by AMC, and uses AMC parts.
Could be anything inside them now as is, need to look.

Ex-race magnesium parts should be x-rayed or crack tested if intended to be ridden. Display only otherwise. Old elektron is famous for turning into jigsaw puzzles...

What engine you going to put in it ?

Cheers.

Re: AJS 7R rear hub [Re: groundshaker] #397042
10/01/11 10:35 pm
10/01/11 10:35 pm
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Oztralia
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Rohan Offline
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Oztralia
Originally Posted By: groundshaker
rearhub is a conical BSA Triumph hub


Triumph conical rear hubs have the spokes in the flange on the drive side, not out of the hub. They are also aluminium, not magnesium and wouldn't need (regular !) welding.

The brake plate on this rear hub is also a genuine manx looking item. Just anchored in a somewhat unorthodox way.
Since the rear brake anchor point is on the opposite side of the swingarm, which is interesting. Very interesting.



Re: AJS 7R rear hub [Re: Boomer] #397074
10/02/11 2:29 am
10/02/11 2:29 am
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Oztralia
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Rohan Offline
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Oztralia
That expression may be very apt ?

Harold Willis, Velo Technical Director, in one of his famous Willicisms called elektron (magnesium) "electrified dirt".

Given its habit of turning from a perfectly good casting into a jigsaw puzzle. (Mg consumes vast amounts of electricity in its manufacture too).

Re: AJS 7R rear hub [Re: Boomer] #674865
11/18/16 4:31 pm
11/18/16 4:31 pm
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Posts: 48
Holland
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groundshaker Offline
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Holland
hello Boomer, what did you do with the frontwheel to make it loot better ? I have a same 7R/G50 wheel and also paint damage


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