Author Topic: Rear hub question  (Read 1316 times)

Offline unclemeat

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Rear hub question
« on: 07.09. 2009 22:17 »
Does anyone know if a plunger M21 rear QD hub is interchangeable with an A10 plunger QD hub ?
BSA A10 GOLDEN FLASH 1954
CHANG JIANG COMBO 1968
TRIUMPH THRUXTON 2007

Offline terryk

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Re: Rear hub question
« Reply #1 on: 08.09. 2009 13:54 »
Yes mate they should be the same the only difference in these is the centre spacer hole diameter for swing arm axles. The QD hubs are all the same as far as I know from the ones I have. The plunger singles have a thinner rear wheel sprocket teeth so check that.
Terry QLD Australia
1950-53 A10 rigid/plungers, 1958-61 A10 super rockets, 1947-50 A7 longstrokes, 1949 Star twin,
1951-54 A7 plungers, 1940s M21, WDM20s,
1948-50s B33s rigid/plunger/swingarm, 1948-50s b31s rigid/plunger/swingarm

Offline unclemeat

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Re: Rear hub question
« Reply #2 on: 09.09. 2009 07:26 »
Thanks for that Terry
BSA A10 GOLDEN FLASH 1954
CHANG JIANG COMBO 1968
TRIUMPH THRUXTON 2007

Bill18

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Re: Rear hub question
« Reply #3 on: 18.12. 2012 03:27 »
I also have a rear hub question. I am re-building an A10 with a dubious heritage and seem to have an oversized rear hub. The RHS is markedly domed and there is no room for the standard spacer between the swing arm and the hub. The wheel is impossible to remove/reinstall with the sprocket on the swing arm, as described in the Haynes manual, without forcing the swing arm apart. Has anyone come across this problem? Looking at images of other A10's the rear hub RHS appears to be flatter than mine.
Bill 

Offline Brian

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Re: Rear hub question
« Reply #4 on: 18.12. 2012 03:55 »
Bill you have a plunger hub. Underneath the domed cover there is a screwed collar to hold the bearing in. The swingarm one should be flat and there is no screwed collar.

The plunger one can be altered to suit but it might be easier to get the right hub.

Bill18

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Re: Rear hub question
« Reply #5 on: 18.12. 2012 03:59 »
Thanks very much Brian. I suspected I might have the wrong one. I will chase up the right hub. If anyone out there needs a plunger hub I can help.
Bill

andyh

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Re: Rear hub question
« Reply #6 on: 20.03. 2013 20:31 »
Hi Bill, Am new to the forum, am located in UK. Am looking for a rear brake drum assembly complete with stub axel and nut for a Plunger M21 can you, or any of you good guys on here ;) help me out? Cheers Andy