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Chunk
06-07-2006, 05:13 PM
I recently noticed while wondering into the road bike section of my LBS that on alot of bikes the drive side uses a radial spoke patern, and the non drive side used a 2X pattern.

Why is that? I would think the drive side should have the 2X lacing for the torque.

Anyone care to explain the logic behind this?




mattj
06-07-2006, 05:17 PM
I've also only heard of that in the opposite way - radial for non-drive weight savings, 2/3 cross on drive-side for rigidity.

Builder error or were there many (or factory-built) wheels that were like this?


-m

sanrensho
06-07-2006, 05:22 PM
As Matt said, non-drive side is usually radial while drive side is built with cross lacing (half-radial).

Sheldon Brown explains some of the reasons for building half-radial wheels here, as well as mentioning "wrong way half-radial" wheels:

(Scroll to bottom of page)
http://www.sheldonbrown.com/wheelbuild.html

Chunk
06-07-2006, 05:54 PM
nope. Its actualy not possible that it was builder error. Because

#1, the hub is so that the drive side HAS to be radial, and the non-drive side HAS to be 2 cross.

#2, the wheel came stock on a mid level bike. So it was machine built. Not that it matters though cuz like i said above, the hub is such that well, im repeating myself now. You get the idea.

Chunk
06-07-2006, 05:55 PM
Ah!!!!

here is a picture i just pulled straight off the shimano website. Look at the pair of wheels on the left. Not the close up.

http://bike.shimano.com/media/images/cycling/global/header/609x190_55_eur_wheels_v1_m56577569830499455.jpg

Chunk
06-07-2006, 05:57 PM
More:

The WH-7801 Dura-ace wheelset:

http://bike.shimano.com/media/images/cycling/products/actionsports/WH/WH-7801_popup_v1_m56577569830564211.jpg

Chunk
06-07-2006, 05:59 PM
actualy, i just thought, the reason they do that might be because they want to push the spokes out as far as possible for side-to-side rigidity, and maybe they found that having the radial spokes on the inside really isnt a huge deal.

Can anyone confirm?


EDIT:
Fuck, i feel like such a noob, thanks for the link sanrensho. I missed it the first time around

sprinter
06-08-2006, 10:19 AM
Marketing

Chunk
06-08-2006, 01:32 PM
Marketing

:lol:

i hope that was joke