I recently searched around for a 2 meter ARF for use with a 2 stroke engine and found precious few that weren't designed around a 4 stroke engine. The problem is the pipe tunnel, especially with an ARF - they aren't long enough to handle the 2 stroke pipe and would require modification. The Focus ARF will handle all but the Bolly 2 stroke pipes, and seems to have been pretty well thought out. I'm using a Bully 1.20 2 stroke and have been pleased with it so far.