I have searched the web and can't find what the Alton M Fixie is made of. Cro-mo? 1010 steel?
I just saw one yesterday for the first time and I really dig it. Was kind of thinking of getting one, throwing some BMX wheels and low BMX type bar on it for a goof around bike. Will the rear spacing fit a bmx hub?

I visited the Alton website, no answer I can find.

HiTen steel, check the last response in this thread:
https://www.bikeforums.net/showthread...ighlight=alton

Thanks. i looked all over and couldn't find that info.

I don't know what BMX spacing is, but mine appears to have 120mm spacing. (Too lazy to remove the wheel so just used a tape measure.)
BMX bars work well. I did remove the bar ends. Post some pics when you get one.

I believe 120mm is BMX spacing.

If you change to 406 rims will you have to change the brakes?

Just as I was editing my post, I saw this. I measured again and it is closer to 120mm. I can remove the wheel if necessary.

Yeah, that's what i am talking about. Looks good. On mine )when I get it) I am thinking some 1.75" wheels/tires with some tread on them. I am going to go to the LBS this week to get some measurements. I have some blue Skyway Tuff IIs from around '85 that would work I think.
I am beginning to get stoked...

Thanks, I am enjoying it very much, particularly as a fixed gear.

I don't know if you are aware of the fact that this bike comes with 451 wheels and tires, which are slightly larger in diameter than the 406 size which is common on BMX. The issue becomes the reach of the brake calipers when you go to the smaller 406 BMX wheels. You will probably need calipers with longer reach.

EDIT: I just looked up the wheels you mention (Skyway Tuff IIs), and they would look very cool on that bike, particularly in blue.