Custom hubs

oddsends said:

Why are bike trials wheel-sets no longer 36 spoke if that's what they
used to be?

Weight.

With only 32 spokes, you can drill bigger holes in your rim.

It's also easier to true a rim with less spokes.

A 36 spoke wheel is not noticeably stronger than a 32 as far as failure
is concerned.

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DustinSchaap said:

I think it's just because we use the old system, bike trials used to be
36h as well. How much does an ISIS axle cost? So the complete package,
I might know someone who would be interested in making a hub too 😎

A decent ISIS axle is like $25, I have a hook-up so I think I can get
some free ones from defective BBs

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kerosian

Unicycle for Pazuzu

DustinSchaap said:

why would you kill the 5 yr olds? there's so much more fun things you
can do with them 🙄

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Borgschulze said:

With only 32 spokes, you can drill bigger holes in your rim.

That makes sense if you are trying to minimize the number of holes you
have to drill and maximize material removal.

Borgschulze said:

It's also easier to true a rim with less spokes.

No, it doesn't; it makes it less *tedious* to true a wheel with less
spokes. You can remove smaller bends without a mallet if you have more
points at which you can true a wheel.

Borgschulze said:

A 36 spoke wheel is not noticeably stronger than a 32 as far as failure
is concerned.

Would you say a 32 spoke wheel is not noticeably stronger than a 28 as
far as failure is concerned? (you get where I am going with this)

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oddsends
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oddsends said:

No, it doesn't; it makes it less *tedious* to true a wheel with less
spokes. You can remove smaller bends without a mallet if you have more
points at which you can true a wheel.

Yeah, this is true, I used the wrong word.

oddsends said:

Would you say a 32 spoke wheel is not noticeably stronger than a 28 as
far as failure is concerned? (you get where I am going with this)

Well... yes... a 28 spoke wheel isn't noticeably weaker than a 32...
but you have to know where to stop with this. Also again with the
drilling... too much distance between the spokes and you run into not
being able to reduce the weight as much because of where the spokes
are.

Monty has a 28 Spoke front wheel on their new Kamel bike. The wheelset
is touted as being the lightest wheelset for 20" bike trials. But that
doesn't matter, bike trials riders land on the back wheel anyways.

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In defense of Kerosian, hand-sketching of blueprints is something I've
mentioned to a number of shops during job applications, and many of the
owners have been impressed by the idea that anyone our age has the
patience to not use a computer. Also, sketches aren't really that
important on something like a hub where the designer is also the
fabricator. If he were working with cnc, of course the story would be
different.

That said, CAD is pretty sweet. I designed a mechanical skeleton clock
last summer from scratch, and at the start I had to decide between
solidworks (which I hardly knew at the time) and hand drawing, which I
was pretty decent at. I chose CAD, and it was slow at first, but i'm so
glad I did.Once you get into several layers of sub-assemblies, hand
drafting just gets painfully slow.

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gerblefranklin

(Shut up and ride)

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Yay! someone defends my quirky style! The only reason I'm really like
that is that my teacher is very old-school, he has done everything
without a computer because he refuses to work with things that need to
be treated like toddlers in order to work. Once you're used to old
ways, it's easier just to do them by hand and worry about computer work
later.

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kerosian

Unicycle for Pazuzu

DustinSchaap said:

why would you kill the 5 yr olds? there's so much more fun things you
can do with them 🙄

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Update: I have talked with the resident machine shop and I can get
started on the prototype January 8, I have my final sketches done and
have two ISIS axels on my desk. All I need to do is decide what trials
rim I want to use it with! It'll cost me approx. $50 USD to make one,
which isn't bad at all.
PS: At this very same machine shop I can get a titanium frame made for
$100, basically just the cost of materials and gas!

--
kerosian

Unicycle for Pazuzu

DustinSchaap said:

why would you kill the 5 yr olds? there's so much more fun things you
can do with them 🙄

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kerosian, as you get farther into metalwork, you'll quickly find you can
make parts custom for far less money than the market price of them.
Soon though, you'll notice you don't have time to make all those parts,
and people will want to take advantage of you for those "low" prices.
Want to start a pool on how many people ask you to make them a hub or
ti frame after yout ell them the material costs?

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$100 for a Ti frame?

that is freaking cheap!

can't wait to see this truly custom uni.

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zfreak220

You'll get hurt if you don't land it.
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If you're feeling adventurous, go nick a titanium ISIS spindle off a BB.

32H opens up a whole new world of rims... e.g. Echo, new school Monty,
MAGNESIUM rims (i'm trying to get that company to make mag rims in
36h), square-punched hole Spanish rims, basically a lot more options

joe has already experimented with a new wheelbuild... he has put a 32h
Try-All Mirror-black rim onto a 36h light hub. This is proven to work
fine in biketrials... 32h rims on 36h hubs... all you do is miss out 2
spoke holes on each flange. People do this all the time with 32h rims
on 36h Profile and Chris King cassette rear hubs on their mod trials
bikes. Nothing wrong with it.

But yeah... 32h hubs would be a nice thing.

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Sponge

MSN: [email hidden] feel free to add🙂

Quoted message said:

*"Bikes are made to do trials, unis aren't."- Joe Hodges*

*'TRITON SPONGE' (http://tinyurl.com/2r7jk6)*
-Titanium frames, available in 19", 24", 26", 29", 36"-
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Even though I can make them for cheap, I'll still sell them for quite a
bit :P Labor isn't free, and electricity for the machines and argon (a
[censored] ton is required for Ti!) isn't cheap either, I'd probably sell a
hub for around $200 if I were to sell them, which isn't bad at all for
a handmade hub!
PS- I'll consider that TI ISIS spindle sponge, if I can nick me one.

--
kerosian

Unicycle for Pazuzu

DustinSchaap said:

why would you kill the 5 yr olds? there's so much more fun things you
can do with them 🙄

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