McMahon suspended frame

[Proto2000]

Not sure where this belongs since I cannot find any info on this style frame. Anyone have an idea years made or if it's even a real deal McMahon? Snapped it up for very little money and have started to clean it up, rear-end seems to be anodized and is taking a lot of elbow grease to get the color back. I saw some pics of a different frame style with the exact sticker kit so I would assume it's real but maybe a low produced frame from the maker. Any help appreciated.

 

[Proto2000]

Here is an example of the rear dropouts and they look very similar. Notice the 3 screws holding the hanger in place.

 

[Proto2000]

Just pulled the derailleur hanger and it is not aluminum, it is stainless steel. Never gonna bend kinda material.

 

[Proto2000]

Just started to hang some parts on this frame and checked the diameter of the seat tube, 35.4mm where the derailleur goes on. Where do I get one of those? Kinda bummed now. May need to find a BB type, frame did not have a FD when I bought it and may just go 1 chainring in front...

 

[Dr Dremel]

With only 0.5mm difference I´d imagine a 34,9mm band style FD (735 XT or Deore DX) could fit?

 

[scant]

i'd look for an endless clamp front derailleur. ie, shimano deore or xt

 

[mk one]

A 35mm should fit, someone had a suntour xc one going not so long ago.

 

[Proto2000]

Thanks for all of the responses. I looked for a few of those on eBay but no luck. I dug out an M950 34.9mm which has a smooth interface to the frame and I was able to get it on there without much trouble. I tried a XT with the bumps on the interface and no go. I want to use M950 so it has worked out.