pull spokes,push spokes............? Wheel builders dream thread

pull spokes,push spokes............? Wheel builders dream thread

Post by jagu » Fri, 25 Jul 2003 17:23:25


so on a byke they allways say that the pull spokes sould come from the
inside of the wheel,with the push spokes coming from the outside and for
good reason because of torque from the chain.

i was bulding my 29er wheel tonite thinking if in fact the we sould ride
forward with the pull spokes coming from the outside because the
backwards force is greater than the forward thrust.

think of a big drop and all the force that goes into the landing,most of
it backwards force to keep the wheel from spinning out.i think that it
may be better to run a unicycle with the pull spokes on the outside
because of that severe reverse thrust.

--
jagur - Random Unicyclist

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pull spokes,push spokes............? Wheel builders dream thread

Post by U-Tur » Fri, 25 Jul 2003 19:51:03

Well Brandt says there is no measurable benefit. On a uni with idling,
bw riding, and fore-aft balancing it would hard to say what is push and
what is pull.  For drops, I imagine that the overall vertical impact is
so much larger than the horizontal-cancelling torque that the latter is
negligible.  

In other words, I don't think it matters.

--
U-Turn - Mounting a Revolution

Weep in the dojo... laugh in the battlefield.

'Strongest Coker Wheel in the World'
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-- Dave Stockton
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pull spokes,push spokes............? Wheel builders dream thread

Post by jagu » Sat, 26 Jul 2003 02:12:13

Quote:

> *In other words, I don't think it matters. *

 :(  awh man,thats not any fun.i was hoping this thread would go on and
on focusing on the mediocre....

--
jagur - Random Unicyclist

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pull spokes,push spokes............? Wheel builders dream thread

Post by paco » Sat, 26 Jul 2003 02:30:06

If any of your spokes are pushing, I don't think they are tightened
enough!  :D

--
paco - Creator of the "BUni"

"We are all interested in the future, for that is where we will spend
the rest of our lives."
-Plan 9 From Outer Space
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pull spokes,push spokes............? Wheel builders dream thread

Post by sendhai » Sat, 26 Jul 2003 02:31:55

well, it depends on what kind of spokes you're using...

if you use something really flexible, like say, *** bands, you may be
limiting yourself to rather low speeds and may also have a lot of
trouble when idling.

if you choose to thread your rim with, say, slighty -al dente-
spaghettini, then you'll have some trouble riding in wet or muddy
conditions, but you can expect delicious results if you are lucky enough
to encounter a puddle of al fredo or marinara sauce.

on a 29-er, just how many big drops are you going to do?   with ***
band or pasta spokes, i'd say, on average, just one.

why not thread every other spoke \"pull\" and the rest \"push\", and
then every 20 minutes of riding, loosen your seat post and swing the
saddle around, and ride 20 minutes in the \"opposite\" direction?  don't
forget to tighten those cranks, though!  

--
sendhair - Human Fly  bzzzzzzzzzzzzzzzzzzzzzzz

 [image:
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the [image: http://SportToday.org/] in
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pull spokes,push spokes............? Wheel builders dream thread

Post by UniBrie » Sat, 26 Jul 2003 03:23:43

Everybody knows that Sheldon Brown must be consulted when it comes to
wheel building.

He has addressed much of this in his 'SYMMETRISPOKES'
(http://www.sheldonbrown.com/symspoke.html) and 'POWerwheel'
(http://www.sheldonbrown.com/power_wheel.html).

--
UniBrier - Its Time to Ride

Steve DeKoekkoek - I've got a one track mind.

Ha! there is a price to everything. It is a very economical universe. -
Uniwitold
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pull spokes,push spokes............? Wheel builders dream thread

Post by U-Tur » Sat, 26 Jul 2003 04:09:35

Alright alright, I confess to being a stick in the mud.  Sheldon Brown's
inventions seem to hit the spoke on the head, while Sendhair's gastro
heaven makes me want to go riding. *Paco*, though, should stop wondering
why his wheels always *taco*.

--
U-Turn - Mounting a Revolution

Weep in the dojo... laugh in the battlefield.

'Strongest Coker Wheel in the World'
(http://www.unicyclist.com/gallery/albup39)

-- Dave Stockton
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pull spokes,push spokes............? Wheel builders dream thread

Post by jagu » Sat, 26 Jul 2003 05:29:13

Quote:

> *on a 29-er, just how many big drops are you going to do?  
> *

i intend to find out.i hope i cant stay away from the side loads and
land straight.

--
jagur - Random Unicyclist

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pull spokes,push spokes............? Wheel builders dream thread

Post by tomblackwoo » Sat, 26 Jul 2003 05:41:53

Quote:

> *Everybody knows that Sheldon Brown must be consulted when it comes to
> wheel building.*

And you can find him any old time, loitering at the intersection of
Expertise Street and Obsession Boulevard....

--
tomblackwood - Under-prepared Dork (UPD)

My other brake is my face!

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pull spokes,push spokes............? Wheel builders dream thread

Post by jagu » Sat, 26 Jul 2003 05:46:48

Quote:

> *i intend to find out.i hope i [b]cant* stay away from the side loads
> and land straight. [/B]

DUH?? i meant _can_

--
jagur - Random Unicyclist

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