Front Wheel

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I've done a bit more research. In this thread there's mention that Central's 3x1 simple pattern is incorrect and Devon's 1x1 (or 2x2) is correct: https://www.accessnorton.com/Norton...t-wheel-sitting-off-centre.33679/#post-543645

Is this a significant issue?

Also, Devon lists a 'Valtru' wheel set for a Commando meeting 06.1951 spec, it is a 'WM2' rim. I don't know what that means? It also lists a more expensive front wheel for the disc front Commando, from its 'RollTru' range, but this is a 'WM3'. Both 19". Is this a significant difference?

Thanks.
 
Mart UK said:
I've done a bit more research. In this thread there's mention that Central's 3x1 simple pattern is incorrect and Devon's 1x1 (or 2x2) is correct: https://www.accessnorton.com/Norton...t-wheel-sitting-off-centre.33679/#post-543645

Is this a significant issue?
Click to expand...

No, not really. (The standard 850 Mk3 rear rim, however, is 3x1 pattern).

Mart UK said:
Also, Devon lists a 'Valtru' wheel set for a Commando meeting 06.1951 spec, it is a 'WM2' rim. I don't know what that means?
Click to expand...

WM2 is the standard rim width (1.85" internal).
 
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SteveBorland said:
Doug Richardson used to be at Devon rims (Actually I think he used to run it?), but retired and setup his own little operation.
Click to expand...
Doug setup Devon rims and applied his quality philosophy ie always the best, he now does the same to his wheel building. The guy who bought Devon from Doug does not seem to follow Doug on quality and so quality has suffered. Devon supply Doug with Stainless rims so I am sure any faults will not get past him.
 
If I was buying new rims today and respoking, I wouldn't be thinking about WM2 on front or rear.

WM3 on the front and WM4 (18 inch) on the rear give you a great choice for tires.

...just my two cents
 
Ditto what gforce said about WM2. It's narrower and is and older sized rim, made for the tires that were readily available "back in the day".
 
EstuaryBoy said:
Mart
There's a guy near Boreham specialises in off road bikes, used to advertise wheel building, also a guy out Hedingham way (I think) used to advertise in OBM....
Have you looked on NOC site for Recommended Suppliers?
Not sure if that's open to the casual viewer, but worth a try...
Could phone Norman at NJB shocks, he may know someone local....
These guys can't spell Totham!!!

Essex Wheels |

A family run business with a goal to always provide quality products with quality customer service. This is something we have excelled at for over 15 years.
www.essexwheels.com www.essexwheels.com

It was Halstead, not Hedingham :)
www.anglia-wheels.co.uk

Anglia Wheels

Excerpt from 'Old Bike Mart' March 2011: "Derek Yorke (left) hands over the 'wheel of office' to Mark Clements" "Derek Yorke, of Essex Wheels, formally announces his retirement from wheel building and would like to thank all of his customers for their continued and loyal support
www.anglia-wheels.co.uk www.anglia-wheels.co.uk

PS: Mersea IS still in Essex, yes?
Click to expand...
That's the late Derek Yorke on the left in that photo
He was the best wheel builder in the country
He used to correct wheels that were built incorrectly by other wheels builders
One notable wheel I saw there was from a rudge multi that he was correcting
He rode in the TT in the 50s on a Norton outfit
He used to build his own bikes
He'd hand beat his own fairings from aluminium
Proper old school service every time I went there
 
A few years ago before the Recent Unpleasantness I went to Doug Richardson to have a rim put on my Norton rear 1974. Went with a WM3-19. He was the one who started Devon Rim and he told me all about how Jones (and likely Dunlop) made their rims and said the SS ones he came up with were ok but not as strong as the originals due to the fact the after the rim was made it was put in an segmented die and actually shrunk a small amount in size strengthening it. Or at least that is how I understood his story.
It might not be a bad idea to go with a WM3 on the front but Id would want to know if there is any
tyre clearance issues.
 
My rear rim has a slight flat spot. Could this due to where it is welded?
 
My tyres are 4.10 TT100. Clearance is fairly tight on the mudguard stay. I want to re-use the tyre. So, I'll stick with WM2x19".
I've ordered SS version + spokes from Devon. So, this will have the 1x1 dimple pattern. My current one is CWC 3x1, so I can't just copy my current wheel, I'll need to be clear how the new one laces, in/outside, left/right into the different dimples.
 
Mart UK said:
My current one is CWC 3x1, so I can't just copy my current wheel, I'll need to be clear how the new one laces, in/outside, left/right into the different dimples.
Click to expand...

It should have the same spoke pattern, regardless.
 
L.A.B. said:
It should have the same spoke pattern, regardless.
Click to expand...
Yes, that's fine, but the holes, or dimples will be different in the rim to my 3x1. On the Devon 1x1, or is it 2x2(?) rim, the holes alternate inside/outside the centre line and also clockwise / anti-clockwise angled.

I have looked at photos, but resolution isn't great. The AN parts drawing is also not very clear. It looks like the spokes through the holes LH of centre go to the RH hub and vice versa. Is that correct? Hopefully, then the angle of the dimple will make it obvious which spoke it is, inside or outside.
 
Mart UK said:
Yes, that's fine, but the holes, or dimples will be different in the rim to my 3x1.
Click to expand...

Yes, but that shouldn't alter the spoke pattern and no need to overthink anything just yet....however...


Mart UK said:
The AN parts drawing is also not very clear.
Click to expand...

And perhaps not accurate as the inners are both radiating from the hub in the same direction and both outers radiating in the opposite direction (as Triumph front disc wheel spokes would) and I noticed your rim has been laced to that pattern (but reversed), however, the inner spokes on the brake side are normally the ones under tension during braking and not the outers so the brake side spokes on your wheel are reversed in my opinion, also care needs to be taken with diagrams as the pre-Mk3 wheel with the disc on the right has a different spoke pattern, the brake tension spoke, therefore, is the RH inner on the pre-Mk3 wheel.
 
Oh dear, I hadn't expected that. It's also wrong in the Workshop Manual Fig H3. That's buggered things a bit! The rim and spokes arrive tomorrow. I'm visiting the Excel bike show tomorrow, so I was aiming to start Saturday, planning to work off detailed photos of my current spoke pattern :mad:.

Do you / anyone have a clear photo or diagram of the correct lacing of a 2x2 19" WM2 850 mk3 front wheel?
 
Mart UK said:
Oh dear, I hadn't expected that. It's also wrong in the Workshop Manual Fig H3. That's buggered things a bit! The rim and spokes arrive tomorrow. I'm visiting the Excel bike show tomorrow, so I was aiming to start Saturday, planning to work off detailed photos of my current spoke pattern :mad:.
Click to expand...

No need to panic...yet! :D

Mart UK said:
Do you / anyone have a clear photo or diagram of the correct lacing of a 2x2 19" WM2 850 mk3 front wheel?
Click to expand...

I would expect it to be 1x1.

Having examined lots of Mk3 front wheel pictures (a long time ago) I came to the conclusion that my Mk3's front wheel with its original Dunlop MC288 WM2 1x1 dimpled rim appeared to be laced to the 'usual' factory Mk3 pattern, so, clockwise from the valve, the spokes are LH outer (crossing over to the RH dimple), RH inner, LH inner, RH outer. Also, note that the dimple holes are angled for the rim offset so the rim is 'handed'.

Front Wheel


Front Wheel


Note the Mk3s in the factory brochure appear to be fitted with reversed pre-Mk3 wheel assemblies so the spoke patterns are also wrong!
 
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Dan1950 said:
My rear rim has a slight flat spot. Could this due to where it is welded?
Click to expand...
Probably. I used the inside of the rim, where the bead sits, as the check surface for truing the wheel that I built because of this problem
 
L.A.B. said:
No need to panic...yet! :D



I would expect it to be 1x1.

Having examined lots of Mk3 front wheel pictures (a long time ago) I came to the conclusion that my Mk3's front wheel with its original Dunlop MC288 WM2 1x1 dimpled rim appeared to be laced to the 'usual' factory Mk3 pattern, so, clockwise from the valve, the spokes are LH outer (crossing over to the RH dimple), RH inner, LH inner, RH outer. Also, note that the dimple holes are angled for the rim offset so the rim is 'handed'.

Note the Mk3s in the factory brochure appear to be fitted with reversed pre-Mk3 wheel assemblies so the spoke patterns are also wrong!
Click to expand...
Great photos. Thank you. I will study them on Saturday and see if I get it, particularly the rim being handed. Appreciate the advice.
 
Mart UK said:
Great photos. Thank you. I will study them on Saturday and see if I get it, particularly the rim being handed. Appreciate the advice.
Click to expand...

A previous thread with more info.
www.accessnorton.com

Disk brake front rim dimple pattern

Hi all, I've just bought this Borrani 19 x WM2 rim 40 holes with 3 x 1 dimple pattern, not a common pattern but I believe I can use it on a 72 disk brake hub? I found this info on Central Wheel site https://www.central-wheel.co.uk/cwc-british-chrome-rim-info Am I right? Any advice? thanks in...
www.accessnorton.com www.accessnorton.com
 
Thanks. I read that topic yesterday and didn't understand it, but it contributed to deciding against 3x1. It definitely makes more sense now and will help. Do you know the difference between MC275 and MC288? I ordered 288.
 
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