May be able to score on a used set. Looks like the ones below, not as nice but same pattern. Allegedly magnesium. How to tell?
(http://i249.photobucket.com/albums/gg216/mikesixtysix/blackfog/IMG_3797a.jpg)
Anyway, what do you guys think I should offer for a pair of that?
Cheers
If they are stock S2R wheels, they aren't magnesium... they're aluminum...
That bike there is an S4R, so I guess they could possibly be magnesium? but i don't think so...
Quote from: corey on March 11, 2010, 05:13:35 AM
If they are stock S2R wheels, they aren't magnesium... they're aluminum...
That bike there is an S4R, so I guess they could possibly be magnesium? but i don't think so...
That bike is "Black Fog", a 2002 S4. No stock Monster wheels are magnesium.
I bought a pair off of ebay several years ago from a pretty reputable ebay motors Duc parts dealer in Florida. I forget the outfit's name but the guy took real good care of me, was very upfront and stayed in touch via emails. I took off the stock three spoke wheels on my '97 916SPS and replaced them with the 5 spokers... aluminum was fine with me. They were a dark gray not black like your pic. When they arrived at Advanced Motorsports (I had them dropped shipped to AMS since my bike was already there) I just happened to be there and the owner Jeff Nash and I opened the box together. They actually weren't packaged all that well but the wheels were 99% good! I was real happy. Even Jeff was surprised and gave them his blessing. [thumbsup] Paid $850.
My understanding is the way to tell the upgraded ones from stock is by the cut-out indentations on the spokes. You can clealy see them in the Black Fog photo above.
The stock 5 spokes on my MTS look like that but don't have the cut-outs. The aftermarket 5 spokes on my 748 do.
I don't know if they're magnesium or just a lighter aluminum rim...but I believe that is how you tell the difference between stock and upgraded.
Black Fog's wheels were off a Senna model SBK. (now powdercoated black)
This type of wheel was mounted on: Senna SBK's, 998R sbk, SPS (?) and other R models?
Although not rare -- they infrequently appear "for sale". If you found a set you don't want, PM as I have someone wanting a set locally.
Thanks for the feedback .... appreciate it.
Wheels are presently on a 916 now. Guess the only way to know whether they are magnesium or not is to feel the weight?
Cheers
As mentioned, no stock wheels are magnesium.
How to check...toss them in a fire. If it's magnesium, you'll know real fast. [evil]
Just an update. Found a set with inserts and they are Marchesini aluminium.
So how much should I offer? Seller is asking for about US$700 for front and back.
Cheers
Quote from: slowkitty on March 13, 2010, 10:12:57 PM
Just an update. Found a set with inserts and they are Marchesini aluminium.
So how much should I offer? Seller is asking for about US$700 for front and back.
Cheers
Marchesini Cast Aluminum and Forged Aluminum, have much different cost.
Quote from: kopfjäger on March 13, 2010, 10:18:05 PM
Marchesini Cast Aluminum and Forged Aluminum, have much different cost.
Yep. Big diff.
What are you trying to accomplish? 3 spoke to 5 spoke? Lighter weight? Bigger rear tire?
Cast Aluminum is what is on most low end Ducati's. Almost all. [thumbsup]
Sigh .. next logical question ....
How do I tell the difference between cast and forged? Pics and the education appreciated.
Cheers
If you have the wheels alone, you can weigh them precisely and know if they are Mg or Al.
Quote from: slowkitty on March 14, 2010, 04:47:05 AM
Sigh .. next logical question ....
How do I tell the difference between cast and forged? Pics and the education appreciated.
Cheers
I don't have any good photos. It is hard to explain, but the forged wheel has a much cleaner cut(?) You can easily tell when the cast and forged wheels are side by side. Someone may have some pics. If you go to www.motowheels.com (//http://) and look under Marchesini you will see some good photos, plus all the weight diff., in cast and forged Aluminum.
You could just ask the seller.
We're ONLY talking about 5 spokes here. Either dual sided swingarms or single sided swingarms.
To confirm what others have already said,
Aluminum do have the 'cutouts/indentations' in the spokes. (like the picture of black fog)
Magnesium do not. (like this pic (http://www.no1special.com/mychromo/web/img/bike-portrait-L.jpg))
And there were no 5 spoke forged at that point and ALL of them were cast.
Now with that said, the later generations of wheels that were the Y spoke types (not the 5 spokes were talking about) could be either cast or forged.
$700 is more towards the high end of what the 5 spoke aluminum's usually go for. So hopefully they're in excellent condition.
HTH
11ty billion dollars.
[laugh]
I can't believe no one has said this yet.
$700 would be really sweet. I paid more for mine but I was pissed at missing out on ebay sales time and again. When my pair showed up I said f#@k it and paid the buy it now price. Like I said, they looked 99.5% perfect. I may have paid extra but I got exactly what I wanted and they were in f'ing great shape. Sometimes you just have to throw the wallet under the bus to get what you want. I don't do that as a practice but that time it worked! [thumbsup]
Here's a couple of pics of another SSA set, different from those on the Black Fog bike:
(http://i49.photobucket.com/albums/f254/bikermeow/Phoenix/Wheels4.jpg)
(http://i49.photobucket.com/albums/f254/bikermeow/Phoenix/Wheels3.jpg)
(http://i49.photobucket.com/albums/f254/bikermeow/Phoenix/Wheels1.jpg)
(http://i49.photobucket.com/albums/f254/bikermeow/Phoenix/Wheels2.jpg)
Really light (so I won't rule out magnesium), but I cannot identify them. Any idea? The centres of the inner rims have a slightly raised rough texture.
Cheers
Quote from: slowkitty on March 16, 2010, 03:33:42 PM
Here's a couple of pics of another SSA set, different from those on the Black Fog bike:
(http://i49.photobucket.com/albums/f254/bikermeow/Phoenix/Wheels4.jpg)
(http://i49.photobucket.com/albums/f254/bikermeow/Phoenix/Wheels3.jpg)
(http://i49.photobucket.com/albums/f254/bikermeow/Phoenix/Wheels1.jpg)
(http://i49.photobucket.com/albums/f254/bikermeow/Phoenix/Wheels2.jpg)
Really light (so I won't rule out magnesium), but I cannot identify them. Any idea? The centres of the inner rims have a slightly raised rough texture.
Cheers
Those look like Marvic Penta cast magnesium.
Quote from: ducpainter on March 16, 2010, 03:38:51 PM
Those look like Marvic Penta cast magnesium.
I agree, definitely Marvic's, but maybe Puima's?
http://www.yoyodyneti.com/Category.aspx?CategoryID=2754 (http://www.yoyodyneti.com/Category.aspx?CategoryID=2754)
Are those the set you're looking at buying?
I wonder if these (http://www.speedzilla.com/forums/ducati-classifieds/59789-magnesium-marchesinis-sale.html) are still available?
Quote from: 2001cromo on March 16, 2010, 03:48:51 PM
I agree, definitely Marvic's, but maybe Puima's?
http://www.yoyodyneti.com/Category.aspx?CategoryID=2754 (http://www.yoyodyneti.com/Category.aspx?CategoryID=2754)
Are those the set you're looking at buying?
I wonder if these (http://www.speedzilla.com/forums/ducati-classifieds/59789-magnesium-marchesinis-sale.html) are still available?
Maybe Piumas...
they both have a roundish section spoke....
http://tinyurl.com/yfuyxaz (http://tinyurl.com/yfuyxaz)
Good lord ... you guys are amazing. [clap]
Will go see the wheels for clues .... anything I should check?
Quote from: slowkitty on March 16, 2010, 04:20:56 PM
Good lord ... you guys are amazing. [clap]
Will go see the wheels for clues .... anything I should check?
Make sure the wheels don't exhibit any powdery white spots or 'worming' under the finish.
Magnesium is a very reactive metal and corrosion is its greatest enemy.
Looks like Marvic Piuma ... helluva impressed by you guys.
http://www.marvic.it/gallery_piuma_eng.php?ph=2 (http://www.marvic.it/gallery_piuma_eng.php?ph=2)
(http://i49.photobucket.com/albums/f254/bikermeow/Phoenix/piuma_2.jpg)
Thinking of powdercoating them if I can rather then painting. Any pitfalls?
Cheers
so these aren't magnesium like it says?
http://cgi.ebay.com/ebaymotors/Ducati-916-996-748-Marchesini-mag-rear-wheel_W0QQcmdZViewItemQQhashZitem1c10e676fbQQitemZ120542623483QQptZMotorcyclesQ5fPartsQ5fAccessories (http://cgi.ebay.com/ebaymotors/Ducati-916-996-748-Marchesini-mag-rear-wheel_W0QQcmdZViewItemQQhashZitem1c10e676fbQQitemZ120542623483QQptZMotorcyclesQ5fPartsQ5fAccessories)
Quote from: slowkitty on March 16, 2010, 04:51:34 PM
Looks like Marvic Piuma ... helluva impressed by you guys.
http://www.marvic.it/gallery_piuma_eng.php?ph=2 (http://www.marvic.it/gallery_piuma_eng.php?ph=2)
(http://i49.photobucket.com/albums/f254/bikermeow/Phoenix/piuma_2.jpg)
Thinking of powdercoating them if I can rather then painting. Any pitfalls?
Cheers
Magnesium being as reactive as it is will corrode under paint or powder if the magnesium isn't treated.
Marchesini rims used to be available, maybe still are, in a chromated finish.
If the old finish is removed the wheels must be re-chromated, or magnadyned...similar to alodyne except for mag... before any coating is applied.
For the record, ducpainter is who I trusted to inspect, treat and paint my magnesium wheels. And also who I turned to when I had to do a little 'work' on them. Can I say "listen to the man" any clearer [bow_down] My wheels are still fine after a few years since doing this work.
Quote from: 1KDS on March 16, 2010, 04:52:32 PM
so these aren't magnesium like it says?
http://cgi.ebay.com/ebaymotors/Ducati-916-996-748-Marchesini-mag-rear-wheel_W0QQcmdZViewItemQQhashZitem1c10e676fbQQitemZ120542623483QQptZMotorcyclesQ5fPartsQ5fAccessories (http://cgi.ebay.com/ebaymotors/Ducati-916-996-748-Marchesini-mag-rear-wheel_W0QQcmdZViewItemQQhashZitem1c10e676fbQQitemZ120542623483QQptZMotorcyclesQ5fPartsQ5fAccessories)
Yes, that SSA rear wheel in the pic is magnesium. It's a Marchesini 5 spoke and it
doesn't have the raised section on the spokes. They're only flat U shaped spokes. It fits 748/916/996/998 and SSA monsters.
Another invisible danger in powder coating is that many coaters use their oven at ridiculously high temps (>800F) to burn off old finishes.
Magnesium does not like those temps.