Author Topic: Rear hub d ring.  (Read 10154 times)

Offline Johnny4428

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Rear hub d ring.
« on: September 03, 2024, 05:37:04 PM »
Hi folks, I think I am looking for rocking horse poo here but does anyone have or know where I can get a rear hub d ring part No 91261323000. Somebody had ones on here, I didn’t buy one then because I didn’t need one. Think it was Oddjob. I could maybe obtain an o ring 79 x 2.6mm rather than fit nothing.
1952 Cymoto on Triumph bicycle.
1961 Matchless G3
1974 Honda CB550K1
1978 Honda CB550K3
1999 ST1100 Pan European 50th Anniversary.
1975,1984,1986 Honda C90’s
1973 Honda CB750K3
1977 Honda CB550 (almost)

Offline McCabe-Thiele (Ted)

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Re: Rear hub d ring.
« Reply #1 on: September 03, 2024, 06:05:53 PM »
I bought a new one from Ken as mine had a side cut in it, proper D shape.
Honda CB400NA Superdream (current money puddle)
Honda CB500 K1 (second money pit)
https://www.sohc.co.uk/index.php/topic,28541.0.html
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html
This is a neat 500 restoration in the USA.
http://forums.sohc4.net/index.php/topic,151576.msg1731556.html#msg1731556

Offline Bryanj

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Re: Rear hub d ring.
« Reply #2 on: September 03, 2024, 06:36:46 PM »
They have been long obsoleted and the few nos ones i had went years ago, somebody on the forum living in europe had some specially made but there was a minimum number and i think he sold them all

Offline Johnny4428

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Re: Rear hub d ring.
« Reply #3 on: September 03, 2024, 07:30:10 PM »
Yes Bryan just looked back and it was Erny that sourced them earlier this year.
1952 Cymoto on Triumph bicycle.
1961 Matchless G3
1974 Honda CB550K1
1978 Honda CB550K3
1999 ST1100 Pan European 50th Anniversary.
1975,1984,1986 Honda C90’s
1973 Honda CB750K3
1977 Honda CB550 (almost)

Offline DomP

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Re: Rear hub d ring.
« Reply #4 on: September 03, 2024, 08:52:06 PM »
I used two thin orings next to each other to fill the gap which worked well as a substitute, I'll look up the size I ordered.

*58 ID x 2mm if I'm looking at the correct order in my shockingly long list of bike parts!
« Last Edit: September 03, 2024, 09:07:50 PM by DomP »
1975 XS650B
1976 CB550F1 current project
2012 Triumph Daytona 675

Offline Johnny4428

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Re: Rear hub d ring.
« Reply #5 on: September 04, 2024, 08:04:03 AM »
Thanks Dom, I’ll probably do something similar because of the limited availability.
1952 Cymoto on Triumph bicycle.
1961 Matchless G3
1974 Honda CB550K1
1978 Honda CB550K3
1999 ST1100 Pan European 50th Anniversary.
1975,1984,1986 Honda C90’s
1973 Honda CB750K3
1977 Honda CB550 (almost)

Offline DomP

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Re: Rear hub d ring.
« Reply #6 on: September 04, 2024, 09:56:57 AM »
Cheap as chips too
1975 XS650B
1976 CB550F1 current project
2012 Triumph Daytona 675

Offline Orcade-Ian

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Re: Rear hub d ring.
« Reply #7 on: September 04, 2024, 05:48:55 PM »
Hi Johnny,
Might be a bit of a long shot but I had special seals made for my Lake and Elliot trolley jack - different material but you never know.

http://www.stallard-engineering.co.uk/stories/other/Trolley%20Jack.htm

They were extremely helpful and many others have used their services using the link on my site.  I only bought 2 of the specials and some other 'off the shelf' seals.

They are Barnwell Services (http://www.barnwell.co.uk/) - might be worth an email or call and I'm sure that if they can help it could be useful to others.

Ian
1953 BSA Golden Flash 650 - still a basket case
1960 Norton Model 50 Featherbed 350
1960 Ducati Elite 200 (nearing completion)
1972 Honda CB 350/4
1975 Honda CB 550/4 F1
1976 Honda CB 400/4 F1
2020 Honda C125 Super Cub
2026 Honda ADV 350

Offline McCabe-Thiele (Ted)

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Re: Rear hub d ring.
« Reply #8 on: September 04, 2024, 07:57:17 PM »
From what I can work out the D shaped seal is there to keep out water and dirt in the space between the the two hub parts that will move a little as the drive cushion rubbers compress and move back when accelerating & decelerating. Two narrower o rings sounds a good option. When assembling my 500 hub the D ring even though greased took some effort to push the part fully home.
Honda CB400NA Superdream (current money puddle)
Honda CB500 K1 (second money pit)
https://www.sohc.co.uk/index.php/topic,28541.0.html
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html
This is a neat 500 restoration in the USA.
http://forums.sohc4.net/index.php/topic,151576.msg1731556.html#msg1731556

Offline Johnny4428

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Re: Rear hub d ring.
« Reply #9 on: September 05, 2024, 08:31:43 AM »
Thanks guys, great option Ian, definitely worth a try and quite happy to buy a number of them if available to help others out.
1952 Cymoto on Triumph bicycle.
1961 Matchless G3
1974 Honda CB550K1
1978 Honda CB550K3
1999 ST1100 Pan European 50th Anniversary.
1975,1984,1986 Honda C90’s
1973 Honda CB750K3
1977 Honda CB550 (almost)

Offline DomP

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Re: Rear hub d ring.
« Reply #10 on: September 05, 2024, 06:46:34 PM »
I'd be interested too
1975 XS650B
1976 CB550F1 current project
2012 Triumph Daytona 675

Offline McCabe-Thiele (Ted)

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Re: Rear hub d ring.
« Reply #11 on: September 05, 2024, 06:50:33 PM »
I used two thin orings next to each other to fill the gap which worked well as a substitute, I'll look up the size I ordered.

*58 ID x 2mm if I'm looking at the correct order in my shockingly long list of bike parts!
Two 2 mm wide O rings - 4 mm in total sounds wide but maybe not.
I've measured my old D ring it  is 2.35 mm thick and 3.97 wide, it had been fitted with the flat section down. Your solution looks pretty close iirc the inner hub section groove is not flat but more rounded.
« Last Edit: September 05, 2024, 07:10:12 PM by McCabe-Thiele (Ted) »
Honda CB400NA Superdream (current money puddle)
Honda CB500 K1 (second money pit)
https://www.sohc.co.uk/index.php/topic,28541.0.html
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html
This is a neat 500 restoration in the USA.
http://forums.sohc4.net/index.php/topic,151576.msg1731556.html#msg1731556

Offline Johnny4428

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Re: Rear hub d ring.
« Reply #12 on: September 05, 2024, 07:11:04 PM »
The d ring groove is about 4mm wide Ted.
1952 Cymoto on Triumph bicycle.
1961 Matchless G3
1974 Honda CB550K1
1978 Honda CB550K3
1999 ST1100 Pan European 50th Anniversary.
1975,1984,1986 Honda C90’s
1973 Honda CB750K3
1977 Honda CB550 (almost)

Offline McCabe-Thiele (Ted)

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Re: Rear hub d ring.
« Reply #13 on: September 05, 2024, 07:17:06 PM »
My measurements were taken with calipers so I probably pinched the rubber a tad. I gave up trying to measure the diameter for obvious reasons. I think I've read the 58 size previously.
« Last Edit: September 05, 2024, 07:19:20 PM by McCabe-Thiele (Ted) »
Honda CB400NA Superdream (current money puddle)
Honda CB500 K1 (second money pit)
https://www.sohc.co.uk/index.php/topic,28541.0.html
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html
This is a neat 500 restoration in the USA.
http://forums.sohc4.net/index.php/topic,151576.msg1731556.html#msg1731556

Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
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Re: Rear hub d ring.
« Reply #14 on: September 07, 2024, 10:16:42 AM »
Johnny, I've found a D ring, in a box of big O rings 😁😁😁😁.
PM me if still interested.
LINK TO MY EBAY PAGE. As many of you know already, I give discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new