Any question answered...

What's this likely to be, M5? Used for a rack. Pitch is probably 0.8 but could be a touch off with my measuring there.

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What's this likely to be, M5?

Yes. Should be 4.826-4.976, your calipers could easily be 50μm out

Cheers. Now to find some that don't seem to be made of cheese (and somewhere that doesn't charge a bomb for delivery).

@aggi I like the t25 disc brake rotor screws :-)

I want to put a granny gear on my touring bike, turning it from 1x into 2x. My thought was to have a triple chainset and use the inner and middle ring, and use a band on friction shifter on the seat tube with a top pull front derailleur. Will I run into any issues with this setup?

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Can't think of a specific problem with that. What's your setup for rear gears? Surely neater to integrate it with that.

Maybe so, for some reason I am feeling compelled to try it this way 😆. I don’t think I’ll ever really use the granny ring just for those times when I’m struggling up a hill or on rough / uneven ground - don’t want to clutter up the bars with another big pod shifter

If you're not changing the size of your big ring then this seems like a reasonable solution. If you're putting on two new rings that are either side of the size of your current chainring then this might be a bit clunky.

Does anyone know how stiff carbon spokes are?

Considering LB’s new carbon spokes on a new build. Saves ~90g, would look pretty cool, but wouldn’t do it if they’ll be a harsh ride.

https://www.lightbicycle.com/newsletter/introducing-the-new-flyweight-carbon-titanium-spoke-wheelset.html

Carbon spokes seem like a mental idea to me but I’m not up to date with that sort of thing.

Have you considered Berd spokes?
https://berdspokes.com/

From what I have seen in videos of the usual Youtube influencers they are extremely stiff.

They look like they have negative aero

Does anyone know how stiff carbon spokes are?

Once you've made them as stiff as steel, you've already lost so much on aero that there is literally no gain from the weight loss unless you're going up such a steep hill that you're carrying the bike rather than riding it.

Good idea, cheers.

you've already lost so much on aero

Like anybody on here actually races/cares. Looks first, weight second and only so you can quote the number online

Does anyone know how stiff carbon spokes are?

Considering LB’s new carbon spokes on a new build. Saves ~90g, would look pretty cool, but wouldn’t do it if they’ll be a harsh ride.

Peak Torque has ridden the Winspace carbon spoked wheelset
https://www.youtube.com/watch?v=En2aspS819w

And something to talk about at Regents Park.

I've only ridden carbon spokes on Lightweights and they are amazing. So stiff and light but as they are in tension, not harsh.

Aero is for losers.

carbon spokes on Lightweights

The Lightweight design is very different from round spokes laced into conventional hubs, and apparently not bad for aeros as v-shaped rims go

Lightweights are beautiful. I think of the spokes as struts. They're flat, like tagliatelle, and they're glued at both ends. The wheel is a one piece construction. I'm not sure how you'd go about measuring the tension.

I'm not sure how you'd go about measuring the tension

And there's no point doing so since there's fuck all you can do about it 🙂

You could cut it with a knife.

Needs a very low yaw angle apparently

Needs a very low yaw angle

Yeah, in general V-shape rims are OK at zero yaw and then get worse because they stall almost immediately once they get any crosswind. The U-shape revolution not only improved stability but in most cases gave us wheels whose drag fell as yaw increased until the stall angle, which is typically between 15°-20°

I’ve never really understood how Lightweights work…
What happens if the rim goes slightly out of true? Or do they simply never go out of true? But how??