You may not be able to tell by look. There would be a weight difference though. The magnesium would be lighter of course. I am sure that this is not the answer you were looking for, but the only one I can think of
"To do something dangerous requires a certain absence of imagination" -Grand Prix
Overall Magnesium is the lightest material besides carbon for wheels. If you want to save weight go with magnesium. If you just want a different look, save money and do alum.
Just pick them up! LOL
I think the only real way to tell if there were no label would be to look at the unpainted part of the wheel(inside hub) and you should be able to tell pretty easy.
Magnesium has a goldish metallic color
02 748 low HP racebike! SOLD!!!!!! 2008 848 Race bike! SOLD!!!
06 S2R1000 super fun streetfighter
09 Cinelli Mash fixed gear bicycle LOL!
Last edited by duc_748; Feb 3rd, 2009 at 10:49 pm.
I believe that the Mag rims and the Alu rims differ on the spokes. The Mag are smooth, similar to the Marvic finish (the marvic are more round though), and the Alu have a line running down the spokes. Look at my rear rim in the photo, you can see the smooth that I am talking about. Then look at this 996's March and you will see the line I am talking about. That is how it was explained to me when I was trying to figure out if I had Mag rims on this puppy when I purchased it.
<---See the line
bikeless for now...
Last edited by gcardamone; Feb 3rd, 2009 at 10:37 pm.
You should just know when you lift a mag wheel. If it feels lighter than you expected, it's magnesium.
That is true, but I was speaking from the physical appearence. Also I did not know anyone else with a Duc, had never had any other wheel, and was not at a point where I was disassembling anything from my bike, even the rear wheel. Now is a different story, and picking up the rim is so effortless, I know without ever touching an Aluminum rim the difference. Not everyone has access a variety of parts so that they can do side by side comparisons