Wheelbuilding / Wheel Building / Wheel build help

and also - But Tungsten Carbide! Who doesn't want that?

Type wheelstiffness paper into google and the first link is a paper which goes into this.

If i read mdcc tester right he is saying more crossing increases radial stiffness. This however is not my understanding or the result of this paper. Shorter spokes i.e fewer crossings leads to higher radial and lateral stiffness. For radial the difference is small for lateral or axial it is larger.

However fewer crossings lowers torsional stiffness.

For rim brake rear wheels and definatley front rim brake wheels, maximising torsional stiffness is of little benefit as pedaling torque is not that high hense 2x lacing for 28h wheels is prefered by myself. For disc brake wheels though braking torque on the the front wheel especially can be high. So by lacing 3x you are maximising torsional stiffness while making little impact on radial stiffness. There is an impact on lateral stiffness but the trade off is worth it. That is my view.

If i read mdcc tester right he is saying more crossing increases radial stiffness

What I said was that you'd have to do the maths. You gain slightly from the reduced bracing angle, but you lose a bit from the longer spokes. I haven't done the maths to see which way that ends up on typical wheels, or whether it could go either way depending on exactly what details you feed into it. For example, the increase in spoke length from adding crossings depends on the flange pcd, so it makes less difference on small flange hubs.

Unfortunatley i cant copy the link for this paper on my tablet as touching the link opens the pdf.

Long press on the link should open a few options

So... 19mm Mavic open pro exaliths
https://www.instagram.com/p/BRY9NsPAPsL/
Anyone know when? Where? How much?

bit more info here but no release date or price...
http://www.bikeradar.com/road/news/article/mavic-new-open-pro-rim-tubeless-disc-49370/

After a most spectacular endo on Saturday's club run, one of the chaps on the ride rode over @Cycliste's rear wheel. It's a Bitex RAR rear hub with a Kinlin XR200 rim, 28 spokes, with CX-Rays. It's now got a good 5-6mm lateral play. Worth trying to straighten, or is a new rim the only realistic option? The rim's not kinked or deformed as far as I can see, but it is spectacularly wobbly.

Give it a go, what's the worst that can happen? You don't get it straight and need another?

And waste an hour or two of precious, precious time I could happily use to do something more productive. Like building some new wheels for myself.

I kick my wheels true. Saves heaps of time.

Sound like a considerable amount, in that situation, it's unlikely to be able to true it back to how it was unfortunately.

But then, stranger thing does happened.

Prices are up and they are good for a UST wide road rim: https://www.bikerumor.com/2017/03/14/mavic-expands-on-a-classic-with-new-tubeless-open-pro-rim/

the pdf open when I do that.

spectacular endo on Saturday's club run, one of the chaps on the ride

And they say cycling's the new golf, what piffle and tommyrot.

€170 for Exalith, I'm out.

Those mavics are going to popular. Poor HED, DT Swiss and Pacenti, Velocity, Ryde, H Plus Son- Mavic have upped there game. Damm poor me I have lots of stock. Best sell those current open Pro's quick.

Mavic have upped there game

Well, they've (almost) brought their MTB game to the road. If they'd included FORE drilling, the new Open Pro would be just like the UST/ISM/SUP XM819 that they've recently discontinued :)

I'm not sure who (outside of NAHBS wankery) is actually going to want a non-aero rim brake wheel these days, except at the low end where €70 for the basic one will be a deal breaker anyway.

On the disc brake side, what's the point of the Open Pro? It's functionally inferior to the XM819, and most gravellists would have been better off with the wider EN821 anyway, if the idiots at Mavic hadn't dropped that too.

It will sell like hot cakes because its on Prolly.

I think they will sell. If they are around £70 then they will be cheaper than a Pacenti Forza only a tad more expensive than the Archetype and lets face it those rims are not that aero and sell well.

The XM819 where MTB rims and that was the problem in marketing them to the road turned gravel rider crowd. If I mention to a roadie a rim they have never heard of they uhm and arhhh and say must do some research. That is the sad fact and mavic know this.

So given it's low weight and its odd looks I think it will find buyers quickly.

I think they will sell

Yeah, they will sell a bit, but they're not going to make your Velocity/Ryde/Kinlin stock worthless. H+Son might have peaked unless they bring something new and better to market; the Archetype was looking pretty tired long before now.

The XM819 where MTB rims

If Mavic had any sense, they'd keep making XM819s on the old tooling, change the decals to say GR819 and put the price up by 50%. They'd sell like hot cakes to the gravellists :)

This has probably been covered but when removing spacers from a hub to make the o.l.d. narrower, is it more logical to remove from the ds or the nds? With regard to dish/wheel strength I mean. Feels like it would be better to have the spacers on the nds but I've been an idiot lots of times before.

What sort of hub? If it's a multiple freewheel style, you need to make sure there's room for however many sprockets you're using first, and then take up the slack on the NDS to minimise dish.

I'd concentrate on keeping the chainline correct before worrying about dish.

Sorry, yes a cassette hub. For instance, making a regular shimano 135mm mtb hub fit in a road frame.