spoke lacing and profile crank question

Two questions:

1) Which do you recommend for a trials wheel and why: A 3 cross or a 4
cross?

2) When was the last year profile made silver cranks with a regular
bold head instead of an alan wrench to tighten them on? (they have a
spider as well)

Mark and I were trying to figure that out tonight. Thanks.


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Seager...

1) I built my old trials wheel 3 cross. With 4 cross, the spokes may
enter the rim at a weird angle, on such a small rim. But I could be
wrong.

2) I have no idea when they were made.


Mojoe


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Mojoe

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Yea, the spokes are actually digging into the hub flanges on a 4-cross
I've got. It's kind of crazy.


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1) 4 cross will give you a stronger wheel

2) I don't think profile ever used a hex head bolt


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onetrack

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I say forget about the 4x spoke pattern and go with 3x because they are
the most comon and if you make a wheel with a lets say and alex dx 32
rim with stainless spokes you should bend any crank on the market
before you ruin your wheel unless you land realy bad but then it
will be a bone that breaks


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Onetrack, I'll post a picture if you want but they are standard bolt
heads that you use a socket wrench on. I wasn't able to get a clear
story about their origin so I was just wondering how old they are.
Just for the heck of it. I didn't know they existed either. They also
seem to be 140s...


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Use 3 cross, it is plenty strong. 4 cross sometimes runs into a problem
where the spokes are leaving the hub at too close to tangential.

I'm pretty sure profile doesn't (and hasn't) made 140s.

Is there a reason why you want the ones with the hex head?


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well, I have the ones with the hex head, I'm just wondering what their
history is. I don't know that they are 140's, but when held up next to
KH140s they sure look the same length. I know they've gotten down to
145 in the past (and make some now)


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Seager wrote:
well, I have the ones with the hex head, I'm just wondering what their
history is. I don't know that they are 140's, but when held up next to
KH140s they sure look the same length. I know they've gotten down to
145 in the past (and make some now)




Yeah, I just remembered that my friends profiles on his bike have the
hex head. Dunno how old they are though. I think the shortest profile
can make cranks is 145 for some reason having to do with their machines
not going small enough or something.


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him, and came here because of him\" - kj-52

\"try not to annoy the great obie, for he is better than us.\" - murde
mental

*disclaimer: the above message was not intended to offend anyone. if
you are offended i can take no responsibility for my actions because i
don't feel like it. also you are reading an internet newsgroup where
not everyone will share your same views and beliefs, be able to take
criticism and post/read threads at your own risk.*
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I'd like to see a pic. there are quite a few profile look alikes
floating around that use hex bolts (which would explain it being a
140mm crank). Also, it's not like the allen bolt has to be used. A
previous owner could have swaped it out for a hex bolt.



I say forget about the 4x spoke pattern and go with 3x because they are
the most comon and if you make a wheel with a lets say and alex dx 32
rim with stainless spokes you should bend any crank on the market
before you ruin your wheel unless you land realy bad but then it will
be a bone that breaks



I would just like to note, that going 4 cross wont be any harder to
build, or cost any more than 3 cross, but you will end up with a
stronger wheel. And what if you do "land realy bad" wouldn't you rather
know that you are using the strongest lacing patern?

The fewer the crosses, the stiffer. the more crosses, the stronger.
radial being the stiffest and weakest, and 4 cross being the strongest
but having the most flex.

19" wheels are really stout, which is why 3 cross will hold up under
abusive riding. but if you would like your wheel to be truer, longer,
I'd go 4.


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