Lacing 36H hub to 18H rim?

[kukamunga]

Anyone had any experience lacing a 36H front hub to a 18H rim (with 18 spokes, even dishing)?

I do not like the potential stress radial lacing will potentially put on the 'cheaper', shallow flanged 36H hubs I have, so will be looking to cross spokes 1X or 2X? I feel their may be some potential problem with the 'alignment' (or 'mis-alignment') of holes in opposing hub flanges and spoke length calculation (a problem that I don't think would arise if lacing an 18H hub to a 36H rim, say). Any 'expert' advice?

Parts (except spokes?) are from hard rubbish - deep dish 700C Velocity rim as good as new, low-end front Shimano hubs need servicing.

Cheers

[europa]

Give it go considering the origin of the parts.

Richard

[QuangVuong]

Ultra thread revival! But Kukamunga you're still around. Did you ever get around to doing this? I'm thinking of 18 hole Velocity Aeroheads with a 36h Shimano hub(prob around 105 quality). Lacing would be the Crows Foot.

[petal665]

I recently laced 36 hole Ultegra hub radially to an 18 hole Zipp rim. I don't expect any long term issues.

[kukamunga]

I do not like the potential stress radial lacing will potentially put on the 'cheaper', shallow flanged 36H hubs I have, so will be looking to cross spokes 1X or 2X? I feel their may be some potential problem with the 'alignment' (or 'mis-alignment') of holes in opposing hub flanges and spoke length calculation (a problem that I don't think would arise if lacing an 18H hub to a 36H rim, say). Any 'expert' advice?

Wow! I did actually end up building a 36 hole high flange hub to the 18H Velocity rim. As i didn't want radial lacing, cross lacing was a real headache. 18 / 2 = 9 - an odd number of spokes on each side, which made paired cross lacing impossible. I ended going for a variation on a 'crows feet' lacing pattern, with 6 lots of 3 spokes, each lot with 2 crossing and one radial laced spoke. It was easy calculating the radial spoke length, but a lot of trial and error getting the crossing spoke lengths right

The wheel is still occasionally used. I'll see if I've got some pics of it later

[HappyHumber]

Would be curious to see, Kooks. Haven't tried crowsfoot myself yet. Radial through 4 cross, but none of that funky stuff... yet...

[HLC]

I once laced a 16h shamal to a 32 hole hub. Radial 1 NDS, 1x DS.

Then I delaced and built it up to a 16h hub.

No dramas.

[kukamunga]

I built this wheel about three years ago. I haven't built another wheel like it. It seems to be holding up well after maybe 500 kms, including some minor 'cx' use. I showed it at a Bike Mechanics Wheel Building class last year, and the instructor / master wheel builder seemed to think that the pattern and build was ok

Like I said earlier, getting the 'cross' spoke length right was a matter of experimentation at the time - I think there may be three different spoke lengths used. Don't ask!

[QuangVuong]

Empty spoke holes dont look too odd. What hubs are they? Wonder if standard flange height hubs would work well enough? And how would rear lacing go? Same pattern?

[kukamunga]

The front is a Quando hub of some description from who knows where. I just happened to have a matching 28 hole rim, and built it two-cross onto a 28 hole Sturmey Archer AW hub, also from my hard rubbish collection. Both wheels run on my green machine



I'd be using more than 18 spokes for a rear wheel, quang!

[Dan]

Did you read the Roger Musson book yet Quang? Despite kooks' report of success, I'd be wary of skipping spoke holes on a wheel build. They're there for a reason.

But hey, you're the kinda guy who'd go and drill holes in carbon tubes, so knock yourself out. Figure of speech.

[Mozzar]

With my experience in building 1000's of wheels there is no way of lacing a 18 spoke wheel any other way other then radial as you will have an odd number of spokes each side. So you will have to stick with radial.

[QuangVuong]

Not yet Dan.

And from the good folk at Velocity, my 18h Aeroheads have arrived. Since you guys are advising against 18holes, then I'll see if I can exchange for a 20/24. EDIT: Looks like I'll be able to exchange them.

Is it better to just get the 20/24h rims to match with some FastFoward 20/24 hubs? Rather than making up some potentially dangerous 18h rims on 36h hubs.

[Dan]

I'd go with the 24 rear - minimum - for your first build. Gives you a bit more room for error. I'd actually go for a 32h, but that's me

I know you're light, but the extra spokes make sfa difference weightwise. My current parts order is for 28h front 32h rear - for consistency (and the sake of 20g) I should most probably have stuck with a 32h front, too.

Get the Musson book - has some rad plans for a wheelbuilding stand, too. I found it clearer and more descriptive than the Sheldon pages.

EDIT: removal of annoying autocorrect typos

[QuangVuong]

I mainly wanted lower spokes for the aesthetics. I don't care that much about weight really. Will go ahead with exchanging for 20/24. Prob will lace to FFWD F4R hubs.

I've got the book, just need to get to reading it.

[kukamunga]

...my 18h Aeroheads have arrived

Looks like you've got two good front rims there. I wouldn't recommend my 6x3 lacing pattern example above - it's more for show than go

Whatever hubs you use, check the manufacturers fine print to see whether they are suitable for radial lacing. Some manafacturers will be quite specific about this, though with the current trend for radial lacing on nearly all front road bike wheels these days, I'd say most quality front road hubs are suitable