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Wheel building

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Re: Wheel building

Posted by norman_lorton at December 19. 2017

Previously colin_mosley wrote:

The angle of the drilling (known as the piercing) is very important. If it is out, it will create a bend in the spoke. In some cases the "inner" layer of spokes may have a different piercing from the "outer" as well as from each side of the wheel.

Colin

 

Well if this is professional wheel building practice then it is very interesting to note. So a series of four holes will each have different drilling angles: left inner, right outer, left outer and right inner, repeated ten times on a 40 hole rim. Phew, so how does one identify the start hole and how do you detect the small differences in angle?

I thought perhaps that the nipple heads were rounded so that they would find their own seating in the rim dimple, give or take 10 degrees, and the drillings had a bit of slack. Obviously not.

Re: Wheel building

Posted by robert_tuck at December 19. 2017

Its best to leave the old wheel intact till you get the new rim, you can then put them side by side to check they are the same (and the right way round!) .This only works if the rim maker knows what he is doing. I had a problem years ago with Central who were drilling rims to the pattern that Norton AMC used. These were different to the pattern that Norton Bracebridge St used. Central would not admit there was a difference so in the end I had to lace up to the later pattern and I now have a different pattern on the front to that on the back. So if you can't follow the old pattern on an older Norton ,now you know why. Its also possible that Central now supply the right pattern as required??,after all we do live and learn.

Re: Wheel building

Posted by colin_mosley at December 19. 2017

Insert a spoke into one of the holes and thread a nipple on. On most rims, the first spoke from the same side of the wheel to cross will be two holes away (i.e one empty hole between). The piercing for this is normally quite clear. Insert a second spoke into this hole and thread on a nipple. Push firmly on both nipples from the tyre side of the rim. The spokes should cross about half down their length. Note the distance across their inner ends.

Repeat this for the other side of the wheel. If the distance is bigger, this is the side for the brake drum on half width hubs or vice versa.

For each pair of spokes, leave them in the same holes but make them cross either on top or underneath each other. If the piercing is different for the inner or outer layer, this will become apparent as they may interfere with each other.

Colin

Re: Wheel building

Posted by ian_soady at December 19. 2017

Good tip Colin.

I'll be getting the rims on my ES2 rechromed as they're original (I think - need to check) but will be using the jig to start with. My concern is that by the time they've been polished and replated any marks I've made showing orientation and direction will have vanished.......

I mark where the valve hole in the rim comes on the jig so if I also mark the hub then at least I can get them in something like the correct orientation to start with.

Re: Wheel building

Posted by michael_sullivan at December 22. 2017

In reference to Anna's recommendation of cannabis oil or hemp oil to cure a cold.  If you use one of these methods you might not cure the cold but you will not give a damn!

Mike

Re: Wheel building

Posted by Tony Ripley at December 22. 2017

Previously Dan Field wrote:

I’m about to do the same, and am undecided between Central Wheel and Devon Rims.

Dont forget that if you go to Central Wheel and mention you are a member of the NOC you get a 5% discount.

I don;t know about Devon Rims.

Tony

 

Re: Wheel building

Posted by anna jeannette Dixon at January 08. 2018

Previously Tony Ripley wrote:

Previously Dan Field wrote:

I’m about to do the same, and am undecided between Central Wheel and Devon Rims.

Dont forget that if you go to Central Wheel and mention you are a member of the NOC you get a 5% discount.

I don;t know about Devon Rims.

Tony

Hello TONY if my front rim is anything to go by then I would give Devon rims a big miss , In time I am going to have to change out the Front rim maybe for a stainless one as with the two year it was on my bike the chome that supost to be that deep that you not get to the bottom , well its flaked off  in parts with some ease  its never see the chroming tub or it was a quick dip and polish  and that was it, and they have not cleaned the rust off before it was chromed,    and it was expensive rip off too DEVON RIMS Not likey  Big mistake on my part buying one,  I will sick like Glue to CWS birmingham they can be relied on ,   yours  anna j

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