Wheel Building

in message <[email hidden]>, Andy Dingley

(') said:

On Mon, 07 Jun 2004 09:05:02 GMT, Simon Brooke <[email hidden]>

Quoted message said:

Quoted message said:

Fronts under 32 can be radial, but only if you're a
drag-queen roadie - anyone else should stick with crossing them like
Leonardo intended.

Why?

If you have a good reason, then go to it. Feel free to ignore me.

However a radial lacing puts the spoke tension up, and that makes
building harder. There's also the risk of breaking a fragile rim.
Don't let me stop you if you feel up to it, but I wouldn't recommend
it as a first wheelset.

As it happens I did build a radial front as part of my first wheelset,
and it was a very nice wheel indeed. Sadly the bike it was on got
stolen a couple of years later...

--
[email hidden] (Simon Brooke) http://www.jasmine.org.uk/~simon/
;; Our modern industrial economy takes a mountain covered with trees,
;; lakes, running streams and transforms it into a mountain of junk,
;; garbage, slime pits, and debris. -- Edward Abbey

Jon Senior said:

Andy Dingley [email hidden] opined the following...

Quoted message said:

However a radial lacing puts the spoke tension up, and that makes
building harder.

There's also the risk of breaking a fragile rim.

I don't see how this is related to spoke lacing. Fragile hub flange
maybe...

In that case there's a good book your could usefully read. Radial lacing
puts a large tension on the hub flange that tangential lacing does not.
Which is why plenty of manufacturers don't warranty it for their hubs.

James

James Annan said:

In that case there's a good book your could usefully read. Radial lacing
puts a large tension on the hub flange that tangential lacing does not.

Dept. of slightly related factoids:

The latest Windcheetah has the different sides of the front wheels laced
up differently to take advantage of the relative merits of each. From
their web site, "two piece hub design using straight pull spokes, radial
on the outer edge to counteract the high lateral loading generated by
the Windcheetah's renowned cornering prowess, and tangentially spoked on
the inside flange to handle the considerable braking torque".

Pete.
--
Peter Clinch Medical Physics IT Officer
Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital
Fax 44 1382 640177 Dundee DD1 9SY Scotland UK
net [email hidden] http://www.dundee.ac.uk/~pjclinch/

In article said:

Jon Senior said:

Andy Dingley [email hidden] opined the following...

Quoted message said:

However a radial lacing puts the spoke tension up, and that makes
building harder.

There's also the risk of breaking a fragile rim.

I don't see how this is related to spoke lacing. Fragile hub flange
maybe...

In that case there's a good book your could usefully read. Radial lacing
puts a large tension on the hub flange that tangential lacing does not.
Which is why plenty of manufacturers don't warranty it for their hubs.

How is that related to a fragile _rim_ breaking? The difference at the
hub is obvious, but does it really make that much difference at the rim?

James Annan [email hidden] opined the following...

Quoted message said:

Jon Senior said:

Andy Dingley [email hidden] opined the following...

Quoted message said:

However a radial lacing puts the spoke tension up, and that makes
building harder.

There's also the risk of breaking a fragile rim.

I don't see how this is related to spoke lacing. Fragile hub flange
maybe...

In that case there's a good book your could usefully read. Radial lacing
puts a large tension on the hub flange that tangential lacing does not.
Which is why plenty of manufacturers don't warranty it for their hubs.

If it's The Bicycle Wheel by Jobst Brandt then I've read it. Please re-
read both my post and the previous one, and see if you can spot your
mistake. :-)

Jon

Jon Senior said:

If it's The Bicycle Wheel by Jobst Brandt then I've read it. Please re-
read both my post and the previous one, and see if you can spot your
mistake. :-)

Sorry, I read "rim" as "flange", of course - another case of
beer-induced over-hasty posting. People _usually_ talk about flanges
breaking when radial lacing is discussed!

James

On Wed, 09 Jun 2004 06:31:25 +0900, James Annan
<[email hidden]> wrote in message
<[email hidden]>:

Quoted message said:

I read "rim" as "flange",

Less of that dirty talk, this is a family newsgroup!

Guy
--
May contain traces of irony. Contents liable to settle after posting.
http://www.chapmancentral.co.uk

88% of helmet statistics are made up, 65% of them at Washington University

On 08 Jun 2004 17:23:32 +0100 (BST), [email hidden] (Alan

Braggins) said:

How is that related to a fragile _rim_ breaking?

Because I can't type.

OTOH, I haven't broken a hub flange in years, but I'm still annoyed
over this damn Mavic.

--
Smert' spamionam

James Annan said:

Sorry, I read "rim" as "flange", of course - another case of
beer-induced over-hasty posting.

Kirin, Sapporo, Ashahi, Suntory or a nice ji-biru?

Tony

"Tony Raven" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

James Annan said:

Sorry, I read "rim" as "flange", of course - another case of
beer-induced over-hasty posting.

Kirin, Sapporo, Ashahi, Suntory or a nice ji-biru?

I'd like to think there is a cyclist's beer in Japan that's called Keirin :-)
--
Mark South: World Citizen, Net Denizen