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help to identify bsa qd hub #747901 09/04/18 5:42 pm
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luke72 Offline OP
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can someone please to identify this hub i have a pre 54 plunger frame A7/A10 need to know if fit because i need to buy all the parts to complete the rear wheel
thanks for the help

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Re: help to identify bsa qd hub [Re: luke72] #747953 09/05/18 6:10 am
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C.B.S Offline
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That is a "QD" "Crinkle" hub..



Look in a 1950-1953 parts book (plunger) and look in a 1954 (swing arm) book and compare part numbers... If same then find the parts, if not, fin another hub.


Try Mikes Classic Parts, he has a lot of BSA A7 / A10 parts. I'm sure he can help you out


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Re: help to identify bsa qd hub [Re: C.B.S] #747965 09/05/18 9:36 am
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luke72 Offline OP
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i tried different part book but no luck it's a mess to put it together in that way

Re: help to identify bsa qd hub [Re: luke72] #747967 09/05/18 10:58 am
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Andy Higham Online Content
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The hub looks like a pre '55 A/B series and gold star up to '62
The part no should be 67-6136, the part no on the hub does not look like a BSA number. The A50/65 B44 type 68-6114 is identical apart for a thread to screw on the speedo drive dog


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Re: help to identify bsa qd hub [Re: luke72] #747970 09/05/18 11:36 am
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Andy Higham Online Content
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Is it "Part No" or "Pat(ent) No"?


BSA B31 500 "Stargazer"
Greeves 200 "Blue Meanie"
Greeves 350
Greeves 360
Suzuki GSX1100 EFE "Sorcerers Apprentice"
GM500 sprint/LSR bike "Deofol"
Jawa 500 "Llareggub"
Aprilia RSV Mille "Lo Stregone"
'35 & '36 OK Supreme
Kawasaki ZZR1400 "Kuro no senshi"
Re: help to identify bsa qd hub [Re: Andy Higham] #747989 09/05/18 2:58 pm
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VicCyclone Offline
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The later hubs 68-6114 do not have the grease nipple - the hub above is one of the earlier types of which I think there is a difference between Plunger and S/A types. See:-

http://www.britbike.com/ubb/bin/ultimatebb.cgi?ubb=next_topic;f=10;t=007221;go=older for some info


VicCyclone

1965 A50 Cyclone Clubman
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Re: help to identify bsa qd hub [Re: luke72] #747991 09/05/18 3:20 pm
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Peter R Offline
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The number stamped on the hub (0570250) is a patent nr, not a part number so that will not get you any further.
The plunger frame type hub can be identified by looking at the bearing mounting, (your second picture). The bearing mount should stick out of the crincled section for the plunger type frames.
Wnen the bearing mounting tube is lower than the crincled section, you are dealing with the later type of hub. (swing arm frame)

Last edited by Peter R; 09/05/18 3:41 pm.

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Re: help to identify bsa qd hub [Re: luke72] #748428 09/08/18 11:51 pm
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trevinoz Offline
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That is not a plunger hub, the plunger hub has an internal thread on the non splined side and projects further,

Re: help to identify bsa qd hub [Re: VicCyclone] #748460 09/09/18 5:25 am
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Allan Gill Online Happy
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Originally Posted by Andy Higham
The hub looks like a pre '55 A/B series and gold star up to '62
The part no should be 67-6136, the part no on the hub does not look like a BSA number. The A50/65 B44 type 68-6114 is identical apart for a thread to screw on the speedo drive dog


Originally Posted by VicCyclone
The later hubs 68-6114 do not have the grease nipple - the hub above is one of the earlier types of which I think there is a difference between Plunger and S/A types. See:-

http://www.britbike.com/ubb/bin/ultimatebb.cgi?ubb=next_topic;f=10;t=007221;go=older for some info


As Vic says, the A65 series hubs also have raised rivets, as the earlier ones are countersunk into the hub, they were known for pulling/working loose.


beerchug

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