radial lacing spoke head orientation
terry....@kp.org
insides or outsides of the hub flanges?
or alternate inside/outside every other hole?
any input appreciated.
thanks, t
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terry....@kp.org
terry....@kp.org
Roger
>
> when radially lacing a front wheel does one place the spoke heads on the
> insides or outsides of the hub flanges?
> or alternate inside/outside every other hole?
> any input appreciated.
Theoretically, the wheel is slightly stiffer "heads in", but most
commercial radial wheels are built "heads out" because it looks better.
--
Roger
Web: http://freespace.virgin.net/roger.cantwell
ICQ: 40038278
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Andy Dingley
>when radially lacing a front wheel does one place the spoke heads on the
>insides or outsides of the hub flanges?
Whichever looks prettiest.
As this group has never yet managed to achieve a concensus on
technical grounds, then do whatever you feel like. Or agree with
whatever Jobst says, because life is simpler that way.
Prettiness really is the best guideline here. It's entirely
subjective, so no-one else can gainsay you, and the only benefit of
radially spoking a front wheel is aesthetic anyway.
--
Die Gotterspammerung - Junkmail of the Gods
Doug Eli
out...most void the warrantee if any kind of radial lacing is done). Heads
in puts added strain on the flanges and theoretically can cause failure.
Heads out looks better and is easier on the flanges, but not as stiff (10%
less tops).
terry....@kp.org wrote:
> when radially lacing a front wheel does one place the spoke heads on the
> insides or outsides of the hub flanges?
> or alternate inside/outside every other hole?
> any input appreciated.
Brian Nystrom
Doug Eli wrote:
> Heads in is stiffer,
Immeasurably so.
> but voids any warrantee (even brands that allow heads
> out...most void the warrantee if any kind of radial lacing is done).
Where did you hear this? I haven't seen any hub manufacturer that makes this
distinction.
> Heads in puts added strain on the flanges and theoretically can cause
> failure.
All lacing put strain on the flanges. On a straight flange, heads in my create
a twisting stress. On angled flanges, there is no difference between heads in
or out.
> Heads out looks better and is easier on the flanges, but not as stiff (10%
> less tops).
It's nowhere near 10%. You're talking about a difference of ~3 mm at the
flange. IIRC, the difference in lateral stiffness is ~2%, hardly worth getting
excited over.
--
Regards
Brian
Doug Eli
>
>
> > Heads in is stiffer,
>
> Immeasurably so.
probably right, its been a while since I saw the 'numbers' and really didn't pay
attentions since it really doesn't matter. ( I don't have any radial wheels and
don't plan to either)
>
>
> > but voids any warrantee (even brands that allow heads
> > out...most void the warrantee if any kind of radial lacing is done).
>
> Where did you hear this? I haven't seen any hub manufacturer that makes this
> distinction.
When I got my Real hubs I spoke with someone there and was told heads out was OK,
but not heads in. I contacted Nuke Proof and they said the same thing. Granted,
this was info given to me personally so any printed statement may say otherwise.
It was basically the 'wink-wink, nudge nudge' kind of conversation. They don't
recommend it but said it would be OK and would stand behind their products.
>
>
> > Heads in puts added strain on the flanges and theoretically can cause
> > failure.
>
> All lacing put strain on the flanges. On a straight flange, heads in my create
> a twisting stress. On angled flanges, there is no difference between heads in
> or out.
I was referring to the force of the spoke pushing inwardly against the flange. Is
this what you call 'twisting'?
>
>
> > Heads out looks better and is easier on the flanges, but not as stiff (10%
> > less tops).
>
> It's nowhere near 10%. You're talking about a difference of ~3 mm at the
> flange. IIRC, the difference in lateral stiffness is ~2%, hardly worth getting
> excited over.
Rats, and I was really thrilled for a few days...sigggghhhhhhhhh.
Tullio
>
> Doug Eli wrote:
>
> > Heads in is stiffer,
>
> Immeasurably so.
>
> flange. IIRC, the difference in lateral stiffness is ~2%, hardly worth getting
> excited over.
According to the test conducted by Damon Rinard at
http://damonrinard.com/wheel/index.htm
the heads-in orientation is about 12% stiffer laterally.
Todd Kuzma
Tullio's Big Dog Cyclery
LaSalle, IL 815-223-1776
http://www.tullios.com
Raleigh-Schwinn-Specialized
Bianchi-Waterford-Heron
GT/Dyno-Burley-Co-Motion
Brian Nystrom
Doug Eli wrote:
> > > Heads in puts added strain on the flanges and theoretically can cause
> > > failure.
> >
> > All lacing put strain on the flanges. On a straight flange, heads in my create
> > a twisting stress. On angled flanges, there is no difference between heads in
> > or out.
>
> I was referring to the force of the spoke pushing inwardly against the flange. Is
> this what you call 'twisting'?
Exactly.
--
Regards
Brian
Brian Nystrom
Tullio wrote:
> Brian Nystrom wrote:
> >
> > Doug Eli wrote:
> >
> > > Heads in is stiffer,
> >
> > Immeasurably so.
> >
> > It's nowhere near 10%. You're talking about a difference of ~3 mm at the
> > flange. IIRC, the difference in lateral stiffness is ~2%, hardly worth getting
> > excited over.
>
> According to the test conducted by Damon Rinard at
> http://damonrinard.com/wheel/index.htm
> the heads-in orientation is about 12% stiffer laterally.
You're right. I stand corrected.
--
Regards
Brian