Does anybody know anything about these BMX rims

[Cobra Rob]

weshole;291902 wrote:
Ya, they are worth a lil bit. That's if you can find the right buyer. If they are crack free and in good shape. they used to be worth about 100.00 each. Maybe more for the rear. You may want to look at the casting and see if it says motomag or motomag II. Most were alloy but there were also a magnesium version of the original motomag as well. Those are uber rare.

Here's a current listing for them. http://www.smithgrind.com/view/motomag.htm

thanks for the info wes they are motomag II but i think they are made of magnesium they are just to heavy to be aluminum:)

[94civicex]

iirc magnesium is lighter than aluminum.

[Cobra Rob]

i wonder how you tell which is which

[SPANISH-RICE]

see if a magnet sticks to it. actually i dont know if magnesium is ferrous or not

[Cobra Rob]

SPANISH-RICE;291971 wrote:
see if a magnet sticks to it. actually i dont know if magnesium is ferrous or not

i did that already it does not stick

[kylush]

SPANISH-RICE;291971 wrote:
see if a magnet sticks to it. actually i dont know if magnesium is ferrous or not

Pretty sure a magnet won't stick to either. Doesn't magnesium burn really hot white? Could try lighting them on fire lol

[generation_xxx]

no a magnet wont stick to either. but if you have a bare spot that wont be seen (like under the inside of the tire) scratch the surface with a file to remove any oxidation and pour some vinegar on it if its magnesium it will bubble alot if it doesnt do anything its aluminum

[DelSlow]

Or, like someone said, Magnesium will start on fire.

[bubba]

DelSlow;291999 wrote:
Or, like someone said, Magnesium will start on fire.

i approve this idea... just make sure u stare at the flame..

[Cobra Rob]

generation_xxx;291986 wrote:
no a magnet wont stick to either. but if you have a bare spot that wont be seen (like under the inside of the tire) scratch the surface with a file to remove any oxidation and pour some vinegar on it if its magnesium it will bubble alot if it doesnt do anything its aluminum
thanks ill do that:)

[kylush]

fire>vinegar

[weshole]

They <u>never</u> made the Motomag II's in magnesium. And don deface any part of them if you expect to try and sell them.

[Cobra Rob]

weshole;292162 wrote:
They <u>never</u> made the Motomag II's in magnesium. And don deface any part of them if you expect to try and sell them.

thanks again wes ill do that, i still do not get it why they are so heavy for being aluminum

[DrifterExtreme]

Cobra Rob;292170 wrote:
thanks again wes ill do that, i still do not get it why they are so heavy for being aluminum

they were made in 1986, thats why.

[weshole]

That much aluminum isnt gonna be light. Compare that to the Skyway mags on my bike. Night and day difference.