a7 a10 plunger rear wheel

[tribsa]

hi all, has anyone here got a spare rear wheel in the uk i can buy please............i have a much loved but real bitsa tribsa chop, a7 plunger frame but the rear wheel as far as i can tell is a triumph sprung hub. while it "kind of fits" but for years i have been battling alignment

thanks all in advance

[chaterlea25]

Hi Tribsa,
Posting some photos of the frame/ plungers and tell us the frame prefix  frame number would help identify what is needed

John

[tribsa]

its an a7 but a real dogs dinner of mis match parts, now has a 3ta engine in it

[tribsa]

the frame number

[chaterlea25]

m no  expert on the early, A7/10's but the  plunger section looks to be "standard,
ZA7S is 1949, but yiu know that already.

I just had a quicl look on ebay and there looks to be a crinkle hub BSA wheel  built into a 16in. rim on there? £30 odd quid looks dirt chwap and a good starting place 

If no one here can help ? Have you asked "Yeomans" MCs ?

John

[tribsa]

yes i saw that and didnt know if it could be adapted, it it a swing arm type or are they all the same or can be "made do"??

[tribsa]

bought it now so i now need a hub ans brake plate, fingers crossed, well if i can bodge a triumph wheel in there i guess a bsa one will be a doddle

[jelo68]

I am not sure but i think all the QD Hubs are same . Only Bearings Distancers and Lockingrings are different. Swingarms had the Spedometerdrive on one Side.
Good Luck Jens

[chaterlea25]

Hi Tribsa,
OK,  I'm no  expert on the early, A7/10's but the  plunger section looks to be "standard"?
ZA7S is from 1949, but you know that already.

If no one here can help? Have you tried "Yeomans" MC's?

John

[Joolstacho]

While you're at it, you could put a proper front end on it and cut off that silly sissy-bar.

[tribsa]

i know i know but thats how i bought it back in the 80s, if it was more original maybe its worth it but its a bit of fun 

[Swarfcut]

  Maybe this will help.
  The basic crinkle hub centre has slight variations, but a crinkle hub from any bike can be adapted to fit, with the correct internals.

 Identification..... Plunger hub has two bearing locking rings, one each side, both left hand thread. Swing arm hub has only one locking ring, on brake drum side.

 Later unit models, A65 etc are the ones with speedo drive on the right hand side. 18" rim usually the size on these.
 All the hub bearing OD's are the same but with different spindles and bearing spacers, ID is different depending where the hub started life.

 S/A and plunger brake assemblies are different. Sprocket is 42 teeth for solo bike, many plunger bikes were used with a sidecar and have a 49 tooth "Dinner plate" so care needed buying used. Later Plunger brake back plate has internal strengthening brace between shoe pivot and lever bush. S/A drum and plunger drums do not interchange, the drum bearing sizes differ as the spindle design changed from a single through shaft (Plunger) to a two piece on the S/A models.

 Swarfy.

[tribsa]

that helps a lot thanks at least im on the right path now