Been away for a long time, could use some advice. Broken chainstay on old Fatback. Looking for frame options.

After lurking for the past few days, it is painfully obvious how long I’ve been absent from the scene. Looking for some advice on the following. Thanks in advance.

In about 2008ish I built up and enjoyed a Fatback which served me well for many years. In maybe 2015 I upgraded my fat bike experience but kept the Fatback around as a spare.



Last year my teenage son started riding it and has loved it as a companion to his full suspension Kona XC ride. This past weekend he decided to put the Kona away for the winter and we were planning to begin tearing it down for a much needed maintenance session. He headed out and about 5 minutes after leaving home texted me that he broke the old Fatback, RIP.



So this is where I am at a crossroads of what to do. The chainstay is broken all the way through and I’m not sure if I even trust a repair at this point.

The old girl will be missed, but we are looking for the best option to use most of the parts on a new frame. Being that it is a 170mm rear and straight steerer front, I’m guessing our options are probably limited to buying used. I have been out of the scene for so long that I don’t remember all the specs and what other frames would be the same.

To further complicate things we have a Carver fork with straight steerer that I had planned on installing on the Fatback and would still like to use on a different frame.



What frame would work for us? Also do any of you have a frame sitting around that you would be willing to sell? He is 5’8” and the frame is a Medium, but we would be willing to consider M or L since he is growing at a rapid rate. Also willing to listen to other options if my best bet is to scrap this whole idea and start afresh.

Thanks for listening to my rant, the boy wants his fatty for the winter!