Do Tune MAG190 accept radial for the non drive side?

Discuss light weight issues concerning road bikes & parts.
Post Reply
User avatar
Adrien
WWotY 2007
Posts: 1476
Joined: Sat Jul 10, 2004 5:37 pm
Location: France.
Contact:

by Adrien

Hey.


I've received today my MAG190 hub, I'd like to know if I can lace it radial for the non drive side? If it is not allowed, Ill lace it three times.
What about the front hub? Can it be laced radially?

My latest build, almost finished:

Image
Image
Image


Thanks.Adrien.

by Weenie


User avatar
Cannondale
Posts: 126
Joined: Sun Sep 26, 2004 10:18 am
Location: Denmark
Contact:

by Cannondale

I have not the answer, but which rim are you using? 651 gr. for a rear alu-wheel is very light and i like the gold-finish.
Sine Pondus - Without weight
www.velosport.dk

User avatar
Luc
Posts: 1183
Joined: Fri Oct 22, 2004 8:28 pm
Location: B e l g i u m
Contact:

by Luc

@ cannondale

you should see some other (old) tricks from this french magician, posted before...

:wink: :wink: :wink:
Last edited by Luc on Fri Jan 14, 2005 9:57 pm, edited 1 time in total.
Pollice verso.

Oswald
Posts: 792
Joined: Thu Jan 08, 2004 10:11 pm

by Oswald

Cannondale wrote:I have not the answer, but which rim are you using? 651 gr. for a rear alu-wheel is very light and i like the gold-finish.


Mavic OR7... Retrostyle...

User avatar
Pedä
Posts: 453
Joined: Wed Sep 29, 2004 1:18 pm
Location: Germany

by Pedä

:back2topic:

rear: NOT ALLOWED, but you could do it 2time crossed in the left and 3time crossed on the right side (cassette side= right)

front: up to 28holes it is allowed
Pedä

User avatar
Adrien
WWotY 2007
Posts: 1476
Joined: Sat Jul 10, 2004 5:37 pm
Location: France.
Contact:

by Adrien

Ok thanks you guys, I'll lace it 3 times on both sides so.
It is indeed a Mavic Or7 rim, certainly the lightest aluminium rim :)
I weighted every parts of this wheel;
you can see it HERE

Maybe I'll translate all what I wrote on this french forum in a new topic here.
This may be interesting for some persons.

User avatar
divve
Posts: 4123
Joined: Fri Mar 19, 2004 1:36 pm
Contact:

by divve

On the Tune MAG 190 hub only radial with heads out will give a smaller bracing angle than 3 cross. Less crosses or radial heads in all result in less tension on the non-drive side.

(according to spocalc - hope it's not wrong :) )
Attachments
balance.jpg

User avatar
spytech
Posts: 1693
Joined: Wed Oct 22, 2003 12:34 pm
Location: New York City
Contact:

by spytech

Adrien wrote:Ok thanks you guys, I'll lace it 3 times on both sides so.
It is indeed a Mavic Or7 rim, certainly the lightest aluminium rim :)
I weighted every parts of this wheel;
you can see it HERE

Maybe I'll translate all what I wrote on this french forum in a new topic here.
This may be interesting for some persons.


Nice, can these rims still be had/bought? how durable are they, would you use for everyday normal riding?

User avatar
Adrien
WWotY 2007
Posts: 1476
Joined: Sat Jul 10, 2004 5:37 pm
Location: France.
Contact:

by Adrien

For Spytech; no the rims can't be bought anymore, they were sold between 1980 and 1985/1990. I don't know if they are durable, this is the first build I do with very light aluminium rims. I'll use them for two or three trainings when they will be done, then if there's no problem, I'll give them to my father for his new bike, he will buy this frame and fork:

Image

with a 10 speed Ultegra complete group, that should be an amazing bike!
Personnaly, I doubt the Or7 is a solid rim, but my dad ride quite slowly, smoothly and I'll tell him to take care of the wheels. :wink:

For divve; I chose to put the spokes heads inside the flange to have a little lateral stiffness gain; the angle is bigger than with outside spokes heads, which means that the spokes will let the rim to move laterally but less than with outside spokes heads (theorically).I hope I explain well...
It should also theorically bring some more comfort. Indeed, inside spokes heads will allow the rim to move easier vertically than outside spokes heads (still thanks to the bigger angle).
But all those facts are only theorical, I doubt it happens like that really.(it does, but it is trivial).
Anyway, the con is that it brings a more uneven spoke tensure between right and left spokes, and this is not theorical!
Your picture is good for the hub, but the Or7 effective rim diameter is 616 and not 599, it should change a bit the angle. It is also a 36 spokes rims.

By the way, why do you have all these options on your spoke calculator? For the french version, there's only the spoke lenght according to the cross, there isn't the bracing angle and the different spoke tension.

I go to download the english version! NOW :)

Oswald
Posts: 792
Joined: Thu Jan 08, 2004 10:11 pm

by Oswald

I think the OR7 are okay for a front wheel...

I'm pretty keen on old skool stuff myself... you can still buy these rims at insane prices at some stores, but if you know where to look and have a lot of luck, they can be found for cheap...

User avatar
spytech
Posts: 1693
Joined: Wed Oct 22, 2003 12:34 pm
Location: New York City
Contact:

by spytech

divve wrote:On the Tune MAG 190 hub only radial with heads out will give a smaller bracing angle than 3 cross. Less crosses or radial heads in all result in less tension on the non-drive side.

(according to spocalc - hope it's not wrong :) )


also if you have a Rim with offset it will give you more even tension. does anyone know what the offset is on the velocity aerohead OC and the alex EST 14 rims?

User avatar
divve
Posts: 4123
Joined: Fri Mar 19, 2004 1:36 pm
Contact:

by divve

Adrien, I understand. It's all one big compromise, but it's still interesting to find out why one person chose a certain build option over another.

(the data used was from my build with a DT RR 1.1 rim)

User avatar
Cyco
Posts: 1903
Joined: Sat Nov 30, 2002 4:49 am

by Cyco

Adrian, I'm my experence the OR7s and Fiaemme Ergal Golds do not hold up well to use on modern rear hubs. They do not have the inherant stiffness to hold the driveside spoke tension that will build a reasonably stiff wheel, unfortunatly.

Best of luck, but I found after a short period of time they would start to colapse into the long "potato chip" type wave.

Althogh Tune do not reccomend a radial non drive side spoking, the tension will be low enough that it would not damage the hub
Success is how far you you bounce back up after being knocked down

by Weenie


User avatar
Adrien
WWotY 2007
Posts: 1476
Joined: Sat Jul 10, 2004 5:37 pm
Location: France.
Contact:

by Adrien

Well I did a build with a "Argent10" 334gr, 3x crossed right and 2x crossed left, I'm using them since almost 1000km, and I have no problem yet with them, of course they are almost 60gr more than the Or7 but they have absolutely the same form!
So I might have no problem with the Or7 build, like for the Argent10.

I hope.
Anyway, the time will speak. I'll let you know if I get problems with them.
If one breaks, I will still have 3 Or7 in my garage to build again one ! 8)

Post Reply
  • Similar Topics
    Replies
    Views
    Last post